Merge PR #212: feat(skills): add Solana blockchain skill
Authored by Deniz Alagoz (gizdusum). Closes #164. Will be moved to optional-skills/ and enhanced post-merge.
This commit is contained in:
teknium1
205
skills/blockchain/solana/SKILL.md
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205
skills/blockchain/solana/SKILL.md
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---
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name: solana
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description: Query Solana blockchain data — wallet balances, SPL token holdings, transaction details, NFT portfolios, whale detection, and live network stats via public Solana RPC API. No API key required for basic usage.
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version: 0.1.0
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author: Deniz Alagoz (gizdusum)
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license: MIT
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metadata:
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hermes:
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tags: [Solana, Blockchain, Crypto, Web3, RPC, DeFi, NFT]
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related_skills: []
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---
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# Solana Blockchain Skill
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Query Solana on-chain data using the public Solana JSON-RPC API.
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Includes 7 intelligence tools: wallet info, transactions, token metadata,
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recent activity, NFT portfolios, whale detection, and network stats.
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No API key needed for mainnet public endpoint.
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For high-volume use, set SOLANA_RPC_URL to a private RPC (Helius, QuickNode, etc.).
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---
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## When to Use
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- User asks for a Solana wallet balance or token holdings
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- User wants to inspect a specific transaction by signature
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- User wants SPL token metadata, supply, or top holders
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- User wants recent transaction history for an address
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- User wants NFTs owned by a wallet
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- User wants to find large SOL transfers (whale detection)
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- User wants Solana network health, TPS, epoch, or slot info
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---
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## Prerequisites
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The helper script uses only Python standard library (urllib, json, argparse).
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No external packages required for basic operation.
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Optional: httpx (faster async I/O) and base58 (address validation).
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Install via your project's dependency manager before use if needed.
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---
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## Quick Reference
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RPC endpoint (default): https://api.mainnet-beta.solana.com
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Override: export SOLANA_RPC_URL=https://your-private-rpc.com
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Helper script path: ~/.hermes/skills/blockchain/solana/scripts/solana_client.py
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python3 solana_client.py wallet <address>
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python3 solana_client.py tx <signature>
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python3 solana_client.py token <mint_address>
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python3 solana_client.py activity <address> [--limit N]
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python3 solana_client.py nft <address>
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python3 solana_client.py whales [--min-sol N]
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python3 solana_client.py stats
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---
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## Procedure
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### 0. Setup Check
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```bash
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# Verify Python 3 is available
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python3 --version
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# Optional: set a private RPC for better rate limits
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export SOLANA_RPC_URL="https://api.mainnet-beta.solana.com"
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# Confirm connectivity
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py stats
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```
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### 1. Wallet Info
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Get SOL balance and all SPL token holdings for an address.
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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wallet 9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM
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```
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Output: SOL balance (human readable), list of SPL tokens with mint + amount.
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### 2. Transaction Details
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Inspect a full transaction by its base58 signature.
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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tx 5j7s8K...your_signature_here
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```
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Output: slot, timestamp, fee, status, balance changes, program invocations.
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### 3. Token Info
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Get SPL token metadata, supply, decimals, mint/freeze authorities, top holders.
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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token DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263
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```
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Output: decimals, supply (human readable), top 5 holders and their percentages.
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### 4. Recent Activity
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List recent transactions for an address (default: last 10, max: 25).
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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activity 9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM --limit 25
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```
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Output: list of transaction signatures with slot and timestamp.
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### 5. NFT Portfolio
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List NFTs owned by a wallet (heuristic: SPL tokens with amount=1, decimals=0).
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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nft 9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM
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```
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Output: list of NFT mint addresses.
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Note: Compressed NFTs (cNFTs) are not detected by this heuristic.
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### 6. Whale Detector
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Scan the most recent block for large SOL transfers (default threshold: 1000 SOL).
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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whales --min-sol 500
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```
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Output: list of large transfers with sender, receiver, amount in SOL.
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Note: scans the latest block only — point-in-time snapshot.
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### 7. Network Stats
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Live Solana network health: current slot, epoch, TPS, supply, validator version.
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```bash
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python3 ~/.hermes/skills/blockchain/solana/scripts/solana_client.py \
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stats
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```
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Output: slot, epoch, transactions per second, total/circulating supply, node version.
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---
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## Raw curl Examples (no script needed)
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SOL balance:
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```bash
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curl -s https://api.mainnet-beta.solana.com \
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-H "Content-Type: application/json" \
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-d '{
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"jsonrpc":"2.0","id":1,"method":"getBalance",
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"params":["9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM"]
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}' | python3 -c "
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import sys,json
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r=json.load(sys.stdin)
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lamports=r['result']['value']
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print(f'Balance: {lamports/1e9:.4f} SOL')
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"
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```
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Network slot check:
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```bash
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curl -s https://api.mainnet-beta.solana.com \
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-H "Content-Type: application/json" \
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-d '{"jsonrpc":"2.0","id":1,"method":"getSlot"}' \
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| python3 -c "import sys,json; print('Slot:', json.load(sys.stdin)['result'])"
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```
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---
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## Pitfalls
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- Public RPC rate-limits apply. For production use, get a private endpoint (Helius, QuickNode, Triton).
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- NFT detection is heuristic (amount=1, decimals=0). Compressed NFTs (cNFTs) won't appear.
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- Transactions older than ~2 days may not be on the public RPC history.
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- Whale detector scans only the latest block; old large transfers won't show.
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- Token supply is a raw integer — divide by 10^decimals for human-readable value.
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- Some RPC methods (e.g. getTokenLargestAccounts) may require commitment=finalized.
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---
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## Verification
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```bash
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# Should print current Solana slot number if RPC is reachable
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curl -s https://api.mainnet-beta.solana.com \
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-H "Content-Type: application/json" \
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-d '{"jsonrpc":"2.0","id":1,"method":"getSlot"}' \
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| python3 -c "import sys,json; r=json.load(sys.stdin); print('OK, slot:', r['result'])"
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```
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415
skills/blockchain/solana/scripts/solana_client.py
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415
skills/blockchain/solana/scripts/solana_client.py
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#!/usr/bin/env python3
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"""
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Solana Blockchain CLI Tool for Hermes Agent
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--------------------------------------------
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Queries the Solana JSON-RPC API using only Python standard library.
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No external packages required.
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Usage:
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python3 solana_client.py stats
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python3 solana_client.py wallet <address>
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python3 solana_client.py tx <signature>
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python3 solana_client.py token <mint_address>
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python3 solana_client.py activity <address> [--limit N]
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python3 solana_client.py nft <address>
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python3 solana_client.py whales [--min-sol N]
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Environment:
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SOLANA_RPC_URL Override the default RPC endpoint (default: mainnet-beta public)
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"""
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import argparse
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import json
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import os
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import sys
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import urllib.request
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import urllib.error
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from typing import Any
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RPC_URL = os.environ.get(
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"SOLANA_RPC_URL",
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"https://api.mainnet-beta.solana.com"
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)
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LAMPORTS_PER_SOL = 1_000_000_000
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# ---------------------------------------------------------------------------
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# RPC helpers
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# ---------------------------------------------------------------------------
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def rpc(method: str, params: list = None) -> Any:
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"""Send a JSON-RPC request and return the result field."""
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payload = json.dumps({
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"jsonrpc": "2.0",
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"id": 1,
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"method": method,
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"params": params or [],
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}).encode()
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req = urllib.request.Request(
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RPC_URL,
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data=payload,
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headers={"Content-Type": "application/json"},
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method="POST",
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)
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try:
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with urllib.request.urlopen(req, timeout=15) as resp:
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body = json.load(resp)
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except urllib.error.URLError as exc:
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sys.exit(f"RPC connection error: {exc}")
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if "error" in body:
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sys.exit(f"RPC error: {body['error']}")
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return body.get("result")
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def rpc_batch(calls: list) -> list:
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"""Send a batch of JSON-RPC requests."""
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payload = json.dumps([
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{"jsonrpc": "2.0", "id": i, "method": c["method"], "params": c.get("params", [])}
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for i, c in enumerate(calls)
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]).encode()
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req = urllib.request.Request(
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RPC_URL,
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data=payload,
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headers={"Content-Type": "application/json"},
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method="POST",
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)
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try:
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with urllib.request.urlopen(req, timeout=15) as resp:
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return json.load(resp)
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except urllib.error.URLError as exc:
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sys.exit(f"RPC batch error: {exc}")
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def lamports_to_sol(lamports: int) -> float:
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return lamports / LAMPORTS_PER_SOL
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def print_json(obj: Any) -> None:
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print(json.dumps(obj, indent=2))
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# ---------------------------------------------------------------------------
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# 1. Network Stats
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# ---------------------------------------------------------------------------
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def cmd_stats(_args):
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"""Live Solana network: slot, epoch, TPS, supply, version."""
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results = rpc_batch([
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{"method": "getSlot"},
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{"method": "getEpochInfo"},
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{"method": "getRecentPerformanceSamples", "params": [1]},
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{"method": "getSupply"},
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{"method": "getVersion"},
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])
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by_id = {r["id"]: r.get("result") for r in results}
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slot = by_id[0]
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epoch_info = by_id[1]
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perf_samples = by_id[2]
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supply = by_id[3]
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version = by_id[4]
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tps = None
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if perf_samples:
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s = perf_samples[0]
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tps = round(s["numTransactions"] / s["samplePeriodSecs"], 1)
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total_supply = lamports_to_sol(supply["value"]["total"]) if supply else None
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circ_supply = lamports_to_sol(supply["value"]["circulating"]) if supply else None
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print_json({
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"slot": slot,
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"epoch": epoch_info.get("epoch") if epoch_info else None,
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"slot_in_epoch": epoch_info.get("slotIndex") if epoch_info else None,
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"tps": tps,
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"total_supply_SOL": round(total_supply, 2) if total_supply else None,
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"circulating_supply_SOL": round(circ_supply, 2) if circ_supply else None,
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"validator_version": version.get("solana-core") if version else None,
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})
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# ---------------------------------------------------------------------------
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# 2. Wallet Info
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# ---------------------------------------------------------------------------
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def cmd_wallet(args):
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"""SOL balance + SPL token accounts for an address."""
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address = args.address
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balance_result = rpc("getBalance", [address])
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sol_balance = lamports_to_sol(balance_result["value"])
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token_result = rpc("getTokenAccountsByOwner", [
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address,
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{"programId": "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"},
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{"encoding": "jsonParsed"},
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])
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tokens = []
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for acct in (token_result.get("value") or []):
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info = acct["account"]["data"]["parsed"]["info"]
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token_amount = info["tokenAmount"]
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amount = float(token_amount["uiAmountString"] or 0)
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if amount > 0:
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tokens.append({
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"mint": info["mint"],
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"amount": amount,
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"decimals": token_amount["decimals"],
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})
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print_json({
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"address": address,
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"balance_SOL": round(sol_balance, 9),
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"spl_tokens": tokens,
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})
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# ---------------------------------------------------------------------------
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# 3. Transaction Details
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# ---------------------------------------------------------------------------
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def cmd_tx(args):
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"""Full transaction details by signature."""
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result = rpc("getTransaction", [
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args.signature,
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{"encoding": "jsonParsed", "maxSupportedTransactionVersion": 0},
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])
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if result is None:
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sys.exit("Transaction not found (may be too old for public RPC history).")
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meta = result.get("meta", {}) or {}
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msg = result.get("transaction", {}).get("message", {})
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account_keys = msg.get("accountKeys", [])
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pre = meta.get("preBalances", [])
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post = meta.get("postBalances", [])
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balance_changes = []
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for i, key in enumerate(account_keys):
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acct_key = key["pubkey"] if isinstance(key, dict) else key
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if i < len(pre) and i < len(post):
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change = lamports_to_sol(post[i] - pre[i])
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if change != 0:
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balance_changes.append({"account": acct_key, "change_SOL": round(change, 9)})
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programs = []
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for ix in msg.get("instructions", []):
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prog = ix.get("programId")
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if prog is None and "programIdIndex" in ix:
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k = account_keys[ix["programIdIndex"]]
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prog = k["pubkey"] if isinstance(k, dict) else k
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if prog:
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programs.append(prog)
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print_json({
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"signature": args.signature,
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"slot": result.get("slot"),
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"block_time": result.get("blockTime"),
|
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"fee_SOL": lamports_to_sol(meta.get("fee", 0)),
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"status": "success" if meta.get("err") is None else "failed",
|
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"balance_changes": balance_changes,
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"programs_invoked": list(dict.fromkeys(programs)),
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})
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# ---------------------------------------------------------------------------
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# 4. Token Info
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# ---------------------------------------------------------------------------
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def cmd_token(args):
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"""SPL token metadata, supply, decimals, top holders."""
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mint = args.mint
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mint_info = rpc("getAccountInfo", [mint, {"encoding": "jsonParsed"}])
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if mint_info is None or mint_info.get("value") is None:
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sys.exit("Mint account not found.")
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parsed = mint_info["value"]["data"]["parsed"]["info"]
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decimals = parsed.get("decimals", 0)
|
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supply_raw = int(parsed.get("supply", 0))
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supply_human = supply_raw / (10 ** decimals)
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mint_authority = parsed.get("mintAuthority")
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freeze_authority = parsed.get("freezeAuthority")
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||||
largest = rpc("getTokenLargestAccounts", [mint])
|
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holders = []
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for acct in (largest.get("value") or [])[:5]:
|
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amount = float(acct.get("uiAmountString") or 0)
|
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pct = round((amount / supply_human * 100), 4) if supply_human > 0 else 0
|
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holders.append({
|
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"account": acct["address"],
|
||||
"amount": amount,
|
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"percent": pct,
|
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})
|
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|
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print_json({
|
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"mint": mint,
|
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"decimals": decimals,
|
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"supply": round(supply_human, decimals),
|
||||
"mint_authority": mint_authority,
|
||||
"freeze_authority": freeze_authority,
|
||||
"top_5_holders": holders,
|
||||
})
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# 5. Recent Activity
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
def cmd_activity(args):
|
||||
"""Recent transaction signatures for an address."""
|
||||
limit = min(args.limit, 25)
|
||||
result = rpc("getSignaturesForAddress", [args.address, {"limit": limit}])
|
||||
|
||||
txs = [
|
||||
{
|
||||
"signature": item["signature"],
|
||||
"slot": item.get("slot"),
|
||||
"block_time": item.get("blockTime"),
|
||||
"err": item.get("err"),
|
||||
}
|
||||
for item in (result or [])
|
||||
]
|
||||
|
||||
print_json({"address": args.address, "transactions": txs})
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# 6. NFT Portfolio
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
def cmd_nft(args):
|
||||
"""NFTs owned by a wallet (amount=1 && decimals=0 heuristic)."""
|
||||
result = rpc("getTokenAccountsByOwner", [
|
||||
args.address,
|
||||
{"programId": "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"},
|
||||
{"encoding": "jsonParsed"},
|
||||
])
|
||||
|
||||
nfts = [
|
||||
acct["account"]["data"]["parsed"]["info"]["mint"]
|
||||
for acct in (result.get("value") or [])
|
||||
if acct["account"]["data"]["parsed"]["info"]["tokenAmount"]["decimals"] == 0
|
||||
and int(acct["account"]["data"]["parsed"]["info"]["tokenAmount"]["amount"]) == 1
|
||||
]
|
||||
|
||||
print_json({
|
||||
"address": args.address,
|
||||
"nft_count": len(nfts),
|
||||
"nfts": nfts,
|
||||
"note": "Heuristic only. Compressed NFTs (cNFTs) are not detected.",
|
||||
})
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# 7. Whale Detector
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
def cmd_whales(args):
|
||||
"""Scan the latest block for large SOL transfers."""
|
||||
min_lamports = int(args.min_sol * LAMPORTS_PER_SOL)
|
||||
|
||||
slot = rpc("getSlot")
|
||||
block = rpc("getBlock", [
|
||||
slot,
|
||||
{
|
||||
"encoding": "jsonParsed",
|
||||
"transactionDetails": "full",
|
||||
"maxSupportedTransactionVersion": 0,
|
||||
"rewards": False,
|
||||
},
|
||||
])
|
||||
|
||||
if block is None:
|
||||
sys.exit("Could not retrieve latest block.")
|
||||
|
||||
whales = []
|
||||
for tx in (block.get("transactions") or []):
|
||||
meta = tx.get("meta", {}) or {}
|
||||
if meta.get("err") is not None:
|
||||
continue
|
||||
|
||||
msg = tx["transaction"].get("message", {})
|
||||
account_keys = msg.get("accountKeys", [])
|
||||
pre = meta.get("preBalances", [])
|
||||
post = meta.get("postBalances", [])
|
||||
|
||||
for i in range(len(pre)):
|
||||
change = post[i] - pre[i]
|
||||
if change >= min_lamports:
|
||||
k = account_keys[i]
|
||||
receiver = k["pubkey"] if isinstance(k, dict) else k
|
||||
sender = None
|
||||
for j in range(len(pre)):
|
||||
if pre[j] - post[j] >= min_lamports:
|
||||
sk = account_keys[j]
|
||||
sender = sk["pubkey"] if isinstance(sk, dict) else sk
|
||||
break
|
||||
whales.append({
|
||||
"sender": sender,
|
||||
"receiver": receiver,
|
||||
"amount_SOL": round(lamports_to_sol(change), 4),
|
||||
})
|
||||
|
||||
print_json({
|
||||
"slot": slot,
|
||||
"min_threshold_SOL": args.min_sol,
|
||||
"large_transfers": whales,
|
||||
})
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# CLI
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
def main():
|
||||
parser = argparse.ArgumentParser(
|
||||
prog="solana_client.py",
|
||||
description="Solana blockchain query tool for Hermes Agent",
|
||||
)
|
||||
sub = parser.add_subparsers(dest="command", required=True)
|
||||
|
||||
sub.add_parser("stats", help="Network stats: slot, epoch, TPS, supply, version")
|
||||
|
||||
p_wallet = sub.add_parser("wallet", help="SOL balance + SPL tokens for an address")
|
||||
p_wallet.add_argument("address")
|
||||
|
||||
p_tx = sub.add_parser("tx", help="Transaction details by signature")
|
||||
p_tx.add_argument("signature")
|
||||
|
||||
p_token = sub.add_parser("token", help="SPL token metadata and top holders")
|
||||
p_token.add_argument("mint")
|
||||
|
||||
p_activity = sub.add_parser("activity", help="Recent transactions for an address")
|
||||
p_activity.add_argument("address")
|
||||
p_activity.add_argument("--limit", type=int, default=10,
|
||||
help="Number of transactions (max 25, default 10)")
|
||||
|
||||
p_nft = sub.add_parser("nft", help="NFT portfolio for a wallet")
|
||||
p_nft.add_argument("address")
|
||||
|
||||
p_whales = sub.add_parser("whales", help="Large SOL transfers in the latest block")
|
||||
p_whales.add_argument("--min-sol", type=float, default=1000.0,
|
||||
help="Minimum SOL transfer size (default: 1000)")
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
dispatch = {
|
||||
"stats": cmd_stats,
|
||||
"wallet": cmd_wallet,
|
||||
"tx": cmd_tx,
|
||||
"token": cmd_token,
|
||||
"activity": cmd_activity,
|
||||
"nft": cmd_nft,
|
||||
"whales": cmd_whales,
|
||||
}
|
||||
dispatch[args.command](args)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user