{"name":"onyx_base_tx_decode","tier":"metered","price_usdc":"0.002","endpoint":"https://onyx-actions.onrender.com/v1/onyx_base_tx_decode","method":"POST","input_schema":{"type":"object","properties":{"tx_hash":{"type":"string","description":"0x-prefixed Base tx hash"}},"required":["tx_hash"]},"description":"Fetch a Base mainnet transaction by hash and return a human-readable summary: from/to, value (ETH + USD-est), gas used, status, block, input data length, and the function selector decoded if it matches a known signature. Use when a trading agent needs to inspect a tx before or after settlement — pairs with onyx_token_metadata for full context. Reads from Base's public RPC (no key needed). Demo mode returns a synthetic record.","when_to_use":null,"vs_alternatives":null,"example_request":null,"example_response":null,"settle_to":"0x3fD9ee1373562f894D322B37DFFAd7a5D2b2d78f","network":"base","facilitator":"https://facilitator.xpay.sh","payment_required":true,"free_introspection":true,"note":"GET this URL = free introspection card. POST with x402 payment header to call."}