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Crypto Market Pulse – Wallet Balance & Chain Snapshot
x402
Crypto Market Pulse – Wallet Balance & Chain Snapshot is a paid API for AI agents from cryptopulse.pythonanywhere.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns live USDC/ETH wallet balances and nonce for any address, alongside Base mainnet chain stats and BTC/ETH/SOL/USDC market prices, paid per-call in USDC on Base via x402.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call API for AI agents, settled in USDC on Base mainnet (eip155:8453) via the x402 protocol - no API keys, no signup, no subscription. Live crypto market data: BTC, ETH, SOL, USDC (USD Coin) prices with 24h change (source: OKX), Base mainnet chain snapshot (block height, gas price gwei), real-time USDC-on-Base transfer analytics (transfer count, volume, unique senders and recipients over recent blocks), and USDC/ETH wallet balances plus nonce for any address. Agent utility tools: deterministic JSON repair for LLM output (strip code fences, fix trailing commas, single quotes, unquoted keys, balance braces), DNS A/AAAA lookup, and URL extraction from arbitrary text. Every endpoint returns HTTP 402 with an x402 payment challenge in USDC on Base; pay with any wallet and retry with the PAYMENT-SIGNATURE header. MCP server at /mcp (streamable HTTP, 6 pay-per-call tools). Ideal for crypto portfolios, DeFi dashboards, market analysis agents, data pipelines, and LLM post-processing.
Output
A JSON object containing: wallet USDC and ETH balances plus nonce for the queried address; Base mainnet chain snapshot (block height, gas price in gwei); and live market prices for BTC, ETH, SOL, and USDC with 24-hour percentage change. All data is real-time from OKX and Base RPC.
Example use cases
DeFi portfolio balance check
“Can you look up the USDC and ETH balance for my Base wallet 0x4f3a...d9b2 and tell me what those assets are worth at current market prices?”
Crypto market dashboard refresh
“Give me a live snapshot of BTC, ETH, SOL, and USDC prices along with their 24-hour changes, plus the current Base mainnet block height and gas price.”
Agent treasury monitoring
“Check the USDC balance and nonce on Base for address 0x7c2e...f1a0 — I want to know if it's funded before the agent tries to send a payment.”
Technical details
Endpoint
GEThttps://cryptopulse.pythonanywhere.com/balanceWhen to prefer
Choose this endpoint when an AI agent needs a single combined call for wallet balance checks (USDC + ETH), on-chain nonce, Base network status, and live crypto market prices — all without API key signup. Ideal for keyless, pay-per-call DeFi agents that settle in USDC on Base. Prefer over separate RPC and price feed calls when minimizing integration complexity and when the x402 micropayment model fits the workflow.
Side effects
- HTTP 402 returned if x402 payment header is missing or invalid — must pay 0.001 USDC on Base and retry with PAYMENT-SIGNATURE header
- Invalid or malformed wallet address returns an error or empty balance fields
- Base RPC node temporarily unavailable causing chain/balance data gaps
- OKX market feed delay or downtime causing stale or missing price data
- Rate limiting or PythonAnywhere hosting constraints under high load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": {
"chainId": 8453,
"network": "base-mainnet",
"blockHeight": 21000000,
"gasPriceGwei": 0.05
},
"market": {
"solana": {
"usd": 150,
"usd_24h_change": -0.5
},
"bitcoin": {
"usd": 60000,
"usd_24h_change": 1.5
},
"ethereum": {
"usd": 3000,
"usd_24h_change": 2
},
"usd-coin": {
"usd": 1,
"usd_24h_change": 0
}
},
"servedAt": 1755430000
}
}Tags
x402
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