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Reported issues for x402 Discovery MCP

Pod holds 6 of 6 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded entirely — a maintainer's release checklist is not a warning to a prospective user.

Back to x402 Discovery MCP.

Most discussed

Correct Studio X dynamic prices for three self-registered endpoints

Studio X was registered today through POST https://x402scout.com/register. Three video entries were submitted with incorrect single-value prices, and a second registration with the same service_id was rejected as a duplicate URL.

Please update the following catalog entries to their actual minimum prices:

Read the thread · 2026-07-13 · open · external user · 1 comment

Listing copy refresh for byte-library/f5f2b0af (flagship feed changed)

Hi — I build PayPerByte (you cleaned up our listing in #10 — confirmed on our side, thanks). One small copy refresh when convenient, no urgency:

Our row byte-library/f5f2b0af still describes POST /feeds/address-reputation as the flagship. We now feature POST /feeds/sanctions-screen — signed, version-pinned OFAC SDN + Consolidated screening at $0.05; every answer embeds the list-state (published date + sha256) it was judged against. Resource count 22 is still correct.

Suggested descri

Read the thread · 2026-07-01 · closed · external user · 52 comments

scout_relay pre-pay payTo validation — signed delta feed (free to test)

Hi @rplryan — I build an x402 service registry and I really like how scout_relay discovers, routes and pays autonomously.

A concrete edge case your catalog hits: it refreshes ~every 6h. If a listed payTo rotates inside that window, scout_relay can sign a transferWithAuthorization to a dead/rotated address — the USDC is irrecoverable, plus gas on the failed attempt + the retry.

I run SYNTHORA Registry Watch — a signed delta feed of the live x402 market (Ed25519 + append-

Read the thread · 2026-06-22 · open · external user · 1 comment

Catalog price_usd stale after registration — need update/upsert for existing URLs (GEDX402)

Summary

POST /register rejects re-registration when the URL already exists (HTTP 409), but does not update price_usd (or description) on the existing row. We need either a maintainer data fix for our endpoints or a documented update/upsert API.

Environment

  • Catalog: GET https://x402scout.com/catalog (Accept: application/json)
  • Register: POST https://x402scout.com/register (OpenAPI documents 201/422 only; we also see 409)

Affected entries (GEDX402)

| name | u

Read the thread · 2026-06-20 · closed · external user · 2 comments

Duplicate listing: please remove stale "BYTE Library" row (superseded by byte-library/f5f2b0af)

Hi — I run BYTE Library (PayPerByte), the x402 data gateway at https://x402.payperbyte.io. Your catalog has two rows for us:

  1. Stale — legacy/1c6aaa5a-e7e9-4839-863b-cb504ee489ed (registered 2026-06-10, source "manual"): says "Arbitrum Sepolia testnet; mainnet gated on audit", network arbitrum-sepolia, price 0. That was accurate when registered but we've since cut over.
  2. Current — byte-library/f5f2b0af (registered 2026-06-11 via x402_register): Base mainnet (eip155:8453), USDC, $0.05

Read the thread · 2026-06-11 · closed · external user · 4 comments

ERC-8004 Trust Provider: SENTINEL AML/CFT Compliance Intelligence

Summary

SENTINEL (https://mru-oracle.com) has implemented the first ERC-8004 Trust Provider endpoints in the x402 ecosystem. We would like to register as a trust provider in x402scout's /v1/trust-providers list.

What SENTINEL Provides

SENTINEL is an AML/CFT Compliance Intelligence platform with 77K+ sanctions records, providing:

  • Address Screening: Compliance attestation for x402 payment addresses against OFAC-SDN, EU-Sanctions, UN-Consolidated lists
  • Service Verification:

Read the thread · 2026-03-06 · open · external user · 9 comments

Most recent

The remaining reports are on the project's issue tracker.