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Crypto Market Pulse & Base USDC Stats
x402
Crypto Market Pulse & Base USDC Stats is a paid API for AI agents from baseusdcearn.pythonanywhere.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Returns live crypto prices (BTC, ETH, SOL, USDC), Base mainnet chain stats (block height, gas price), and a timestamp in a single JSON snapshot, 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 with three top-level keys: 'market' (BTC, ETH, SOL, USDC prices in USD plus 24h percent change from OKX), 'chain' (Base mainnet chainId, network name, current block height, gas price in gwei), and 'servedAt' (Unix timestamp of the snapshot).
Example use cases
DeFi dashboard market feed
“Pull the latest BTC, ETH, SOL, and USDC prices along with the current Base mainnet block height and gas price so I can update my DeFi dashboard.”
Portfolio agent price check
“What are BTC, ETH, and SOL trading at right now, including their 24-hour price change percentages?”
Gas-aware transaction timing
“What's the current gas price in gwei on Base mainnet, and what block are we at? I want to decide if now is a good time to send a transaction.”
Technical details
Endpoint
GEThttps://baseusdcearn.pythonanywhere.com/pulseWhen to prefer
Choose this endpoint when you need a single low-cost ($0.001 USDC) no-signup call that bundles live crypto prices for BTC/ETH/SOL/USDC with Base mainnet chain stats (block height, gas price) in one response. Prefer it over heavier market data APIs when you are already operating on Base, paying with USDC via x402, and want a minimal footprint with no API key management.
Side effects
- HTTP 402 returned with x402 payment challenge if no PAYMENT-SIGNATURE header is provided — agent must pay and retry
- Stale or unavailable OKX price data if upstream feed is down
- Base RPC timeout causing missing chain fields
- Malformed payment signature returns 402 or 4xx error
- Cold-start latency on PythonAnywhere free tier may cause occasional 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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