---
title: "Verify a seller x402 endpoint with a signed receipt"
method: POST
path: "/v1/intel/verify-endpoint"
tags: ["Discovery & Ops"]
---

# Verify a seller x402 endpoint with a signed receipt

`POST /v1/intel/verify-endpoint`

## Request

- Base URL: `https://intel.twzrd.xyz`
- URL: `https://intel.twzrd.xyz/v1/intel/verify-endpoint`
- Auth: none declared

SELLER-SIDE endpoint verification with a portable signed receipt. Probes your x402 surface (discovery docs, unpaid-402 conformance, wash screen on each resolved payTo) and returns an Ed25519 AgentReadinessReceipt of what was observed - including a failing result. The payment buys the work and the artifact, never the verdict: basis is endpoint_conformance and not_a_trust_vouch is always true, so a 'ready' card is not a recommendation to pay the seller and does not affect any ranking. Free unsigned equivalent: POST /v1/agent-readiness. Verify offline with npm/PyPI twzrd-receipt-verifier. x402-paid: 0.05 USDC (50000 base units) on Solana mainnet. Path A: bind to the accepts[] entry whose extra.feePayer you intend to pay; settle-rail settlement requires that feePayer to match GET /supported.

## Response `200`

Paid response (JSON) including settlement tx.

## Other responses

- `402`: Payment required (x402). Returns payment-required header.
- `503`: Surface temporarily disabled.

## Changes

- **2026-09-01** `e233ad9a9406`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/twzrd/apis/twzrd-agent-reputation-rails/changes/v1/intel/verify-endpoint/post.md)

---

[API](https://skmtc.dev/twzrd/apis/twzrd-agent-reputation-rails.md) - [All operations](https://skmtc.dev/twzrd/apis/twzrd-agent-reputation-rails/llms.txt) - [OpenAPI document](https://skmtc.dev/twzrd/apis/twzrd-agent-reputation-rails/revisions/beddd4662a76?raw)