Point at an unknown API endpoint and figure out how to use it: auth scheme, content type, version, rate limits, OpenAPI/Swagger spec discovery, and JSON response structure. The deterministic recon workflow before writing a single line of integration code. API investigation skill pack: one x402 payment runs 7 underlying tools (url-parse, http-check, http-headers, extract, html-links, json-format, json-query); partial-success per step.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.02 USDC | 0xaBF4...a9D0 |
| Polygon | exact | $0.02 USDC | 0xaBF4...a9D0 |
| Arbitrum One | exact | $0.02 USDC | 0xaBF4...a9D0 |
| eip155:143 | exact | 0.02 tokens | 0xaBF4...a9D0 |
| eip155:43114 | exact | 0.02 tokens | 0xaBF4...a9D0 |
| eip155:1329 | exact | 0.02 tokens | 0xaBF4...a9D0 |
| Optimism | exact | $0.02 USDC | 0xaBF4...a9D0 |
| eip155:4663 | exact | 0.02 tokens | 0xaBF4...a9D0 |
| Celo | exact | 0.02 tokens | 0xaBF4...a9D0 |
| Base | upto | $0.02 USDC | 0xaBF4...a9D0 |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.02 tokens | J7aN3P...3xwg |
| stellar:pubnet | exact | 0.17 tokens | GDNJXC...WWRL |
| algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= | exact | 0.02 tokens | C7IIHG...2XIE |