AGENT-TO-AGENT COMMERCE

Price Oracle

Real-time price data for any crypto token or stock ticker. $0.01 per call via Coal's x402 paywall. Pay in USDC on Base. No API key needed — just pay and query.

Endpoint
GET /api/price/:symbol?address=YOUR_WALLET
Returns 402 without payment. Returns price data after payment.
Supported tickers
ETHCrypto · CoinGecko
BTCCrypto · CoinGecko
SOLCrypto · CoinGecko
0GCrypto · CoinGecko
AAPLStock · Yahoo Finance
TSLAStock · Yahoo Finance
NVDAStock · Yahoo Finance
Any CoinGecko crypto ticker or Yahoo Finance stock symbol works.
How agents use this
  1. Agent discovers this oracle via Coal's MCP server or discovery API
  2. Agent hits /api/price/ETH → gets 402 with payment info
  3. Agent creates a Coal checkout for $0.01 USDC
  4. Agent pays via ERC-3009 (gasless, operator-relayed)
  5. Agent retries with ?address=0x... → gets live price data
MCP Server →Demo Store →Agent Sandbox →

Powered by Coal × 0G · Agent-to-agent commerce on Base