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Crypto Market Pulse & Base USDC Stats — Price by Symbol
x402
Crypto Market Pulse & Base USDC Stats — Price by Symbol is a paid API for AI agents from baseusdcearn.pythonanywhere.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-09).
Returns live cryptocurrency price and 24-hour change for a given symbol (BTC, ETH, SOL, USDC), alongside Base mainnet chain stats, paid per-call in USDC 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: live USD price and 24h change for the queried crypto symbol (sourced from OKX), Base mainnet chain snapshot (block height, gas price in gwei), USDC-on-Base transfer analytics (transfer count, volume, unique senders/recipients), and a servedAt Unix timestamp.
Example use cases
Live crypto portfolio dashboard
“Pull the current prices and 24-hour changes for BTC, ETH, and SOL so I can update my portfolio tracker.”
DeFi gas cost planning
“What's the current gas price on Base mainnet right now? I want to know if it's a good time to submit a transaction.”
Market alert monitoring agent
“Check the current ETH price including its 24-hour percent change — I want to know if it's moved more than 5% today.”
Technical details
Endpoint
GEThttps://baseusdcearn.pythonanywhere.com/crypto/price/%7Bsymbol%7DWhen to prefer
Choose this endpoint when you need a no-signup, no-API-key, pay-per-call source of live crypto prices (BTC, ETH, SOL, USDC) combined with Base mainnet chain stats in a single call, billed in microtransactions of $0.001 USDC via x402. Ideal for AI agents, DeFi dashboards, and data pipelines that need autonomous, wallet-based payment without subscription overhead.
Side effects
- HTTP 402 returned if x402 payment challenge is not satisfied — agent must pay in USDC on Base and retry with PAYMENT-SIGNATURE header
- Invalid or unsupported symbol returns an error or empty market data
- Upstream OKX or Base RPC downtime may cause stale or missing data
- Malformed symbol path parameter may result in a 404 or unexpected response
- Network latency on PythonAnywhere free tier may occasionally cause timeouts
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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