W3 FastFix Free preflight

x402 LAUNCH FIX PACK

Make your paid API easy for agents
to find, understand, and call.

Send one public x402 origin. Receive protocol evidence, corrected discovery metadata, agent-facing docs, executable caller examples, and a prioritized remediation plan.

Start free preflight 29 USDC on Base · one recheck included
✓ Public HTTPS only✓ No wallet connection✓ No API keys✓ Human-reviewed

ONE FIXED-SCOPE DELIVERY

Not another grade. A patch-ready fix bundle.

EVIDENCE

What agents see

  • Unpaid 402 challenge
  • Base asset, payTo, and price consistency
  • TLS, redirects, and error behavior
  • Evidence-linked findings

DISCOVERY

What to publish

  • Corrected OpenAPI fragment
  • Bazaar extension metadata
  • Input/output schemas and tags
  • Directory checklist

CALLABILITY

How agents call it

  • Concise agent instructions
  • Raw challenge example
  • TypeScript caller example
  • MCP schema when relevant

If you provide a public repository, the pack also includes a unified diff. This is a product/discovery review—not a security audit, legal review, revenue guarantee, or promise of directory placement.

INSTANT AGENT API

Need the deterministic preflight now?

x402 FixSpec API · launch price 0.01 USDC per call

Challenge evidence, Base USDC checks, discovery probes, prioritized fixes, and patch-ready metadata templates.

Buy through PayanAgent ↗View sample ↗

Base wallet payment preflight · 0.01 USDC per call

Read-only ETH, native USDC, nonce, account type, threshold, and exact-x402 readiness evidence from multiple Base RPCs.

Buy through PayanAgent ↗View schema ↗

SAFE ORDER FLOW

Scope is accepted before payment.

  1. 01

    Share one public origin

    No credentials, private repository, wallet connection, or unpublished code.

  2. 02

    Receive a free preflight

    I confirm reachability and scope. Do not pay until the order is accepted.

  3. 03

    Pay exactly 29 USDC on Base

    The native USDC transfer is verified read-only on-chain. No signature is requested.

  4. 04

    Receive the fix pack

    Markdown report, machine-readable JSON, optional unified diff, and one recheck after fixes.

PAYMENT AFTER ACCEPTANCE

29 native USDC on Base

Always confirm the quote, network, asset contract, and recipient in your public order before sending. Wrong-network or wrong-token transfers cannot be automatically returned under this no-signing workflow.

0xf86d627b945bA0A32Cf986E934a5A093E13D1f8E

Native USDC on Base · Contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

FREE SCOPE CHECK

Give me one origin. Pay only after acceptance.

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