nsgoods workbench

Read only workbench over the weekly x402 catalogue scan (14,652 endpoints, 1,971 hosts).

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Payability Verdict: Latest payability observation for one exact resource URL (path and query included), with the meaning of the verdict, remediation if it cannot be paid, and the per-network options s
  • Find Endpoints: Search the catalogue by host or URL substring. Returns up to `limit` endpoints with their latest verdict, plus the total match count. Use this first when you do not know the exact reso
  • Catalogue Stats: Size and health of the x402 catalogue as of the latest full scan: resources, hosts, verdict counts, and payable endpoints per network.

What data it sees

Do you need an account

No: the server works without sign-in

Read only workbench over the weekly x402 catalogue scan (14,652 endpoints, 1,971 hosts). Ask which endpoints are payable, what they cost, which hosts are gone, and verify any signed nsgoods response offline. No wallet, no payments, no sign in. 8 tools, 300 calls per IP per day.

How to connect

How to connect nsgoods workbench to Claude

The server address to paste into Claude settings:

https://nsgoods-workbench--nikosble1926.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect nsgoods workbench to ChatGPT

The server address to paste into ChatGPT settings:

https://nsgoods-workbench--nikosble1926.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect nsgoods workbench to Cursor

The server address to paste into Cursor settings:

https://nsgoods-workbench--nikosble1926.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (8)

Raw names from tools/list. Only developers need these.

payability_verdictLatest payability observation for one exact resource URL (path and query included), with the meaning of the verdict, remediation if it cannot be paid, and the per-network options seen.
find_endpointsSearch the catalogue by host or URL substring. Returns up to `limit` endpoints with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL.
catalogue_statsSize and health of the x402 catalogue as of the latest full scan: resources, hosts, verdict counts, and payable endpoints per network.
host_summarySummary for a host (no time series): first/last seen, current verdict mix, n_resources, total verdict changes, gone_since if absent from the latest full scan, and a small resources_sample.
x401_statusCurrent x401 emitter adoption across the scanned catalogue (from the daily watcher).
drift_statusDeclared-model drift watch. With a host, that host's tracked resources; otherwise a summary.
verify_signatureOffline EIP-191 verify of a signed nsgoods response. Strips preview/demo post-sign fields, canonicalises (JCS, trying both ASCII escaping modes), recovers the signer, and checks it against the published manifest signers.
reportsPublished weekly payability reports (from the signed manifest).