x402 Readiness Preflight API
Exact safe-request x402 readiness diagnostics for $0.005 USDC per fully determined result.
POST � 0.005 USDC per qualifying call � Base mainnet � x402 v2 exact. No account or API key. Runtime HTTP 402 payment terms are authoritative.
What this API is for
Observe one exact public HTTPS bodyless GET, HEAD or OPTIONS request without paying the target. Check x402 v2 exact EVM EIP-3009 challenge declarations, resource binding, price arithmetic, EIP-712 metadata and supported Bazaar request compatibility. Any INCONCLUSIVE finding makes the report no-charge, including an overall FAIL. Query values are literal data encoded once with URLSearchParams, including public HTTPS URL values. Route-only resource identifiers do not establish query binding and remain INCONCLUSIVE/no-charge. Unsupported Bazaar URI/schema constraints remain INCONCLUSIVE; query examples are not required literals and metadata equality is not cryptographic binding.
Good fit for: debug an exact unpaid x402 request, check challenge declarations before integration, derive atomic price and inspect EIP-712 metadata, x402 preflight.
Inspect before paying
- Paid endpoint:
POST https://playbrightgaming.com/agent-services-mainnet/x402-readiness-preflight - Free service metadata
- Full service contract and limits
- Buyer quickstart for all 13 services
- OpenAPI � JSON catalog � x402 discovery
Buying and delivery
Send a valid unsigned request first and inspect the HTTP 402 PAYMENT-REQUIRED challenge. Only sign payment terms within your own approved budget. PennyBot executes automatically, returns structured JSON, and uses durable order/result handling for supported replay and recovery. Keep the original request and payment authorization if delivery is uncertain.
The detailed Markdown contract is authoritative for product-specific inputs, limits, chargeability, non-claims, replay behavior and failure handling. This landing page is a concise discovery surface, not a replacement for the contract.