# org.nsgoods/nsgoods-workbench-mcp

> Read only x402 catalogue: payability verdicts, prices, drift, host status, signatures. No wallet.

- name: org.nsgoods/nsgoods-workbench-mcp
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 93/100
- quality: 83/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/org.nsgoods%2Fnsgoods-workbench-mcp
- tools: https://api.protogrid.dev/v1/servers/org.nsgoods%2Fnsgoods-workbench-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "nsgoods-workbench-mcp": {
      "type": "http",
      "url": "https://mcp.nsgoods.org/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 85
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% ~updated-34d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 83/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 93 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 3 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 8 of 8 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,640 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 16 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 8, about 1,640 tokens to load them all
- tool set hash: 93a7c3e979d7d8dcfed64598a1334e06
- tools last changed: 2026-10-16T11:00:04.886Z
- badge: [![protogrid quality](https://protogrid.dev/badge/org.nsgoods/nsgoods-workbench-mcp.svg)](https://protogrid.dev/servers/org.nsgoods/nsgoods-workbench-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-16 `host_summary` changed (description)
  - before: Summary 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. Sample rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
  - after: Summary 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. Sample rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the currency claim: the last time any scan or reprobe looked at this resource. in_latest_scan means only that the resource was in the latest full scan; a row reprobed the same day can carry in_latest_scan=false and still be current. verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
- 2026-10-16 `find_endpoints` changed (description)
  - before: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
  - after: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the currency claim: the last time any scan or reprobe looked at this resource. in_latest_scan means only that the resource was in the latest full scan; a row reprobed the same day can carry in_latest_scan=false and still be current. verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
- 2026-10-16 `payability_verdict` changed (description)
  - before: 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 seen. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
  - after: 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 seen. last_checked_at is the currency claim: the last time any scan or reprobe looked at this resource. in_latest_scan means only that the resource was in the latest full scan; a row reprobed the same day can carry in_latest_scan=false and still be current. verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
- 2026-10-03 `host_summary` changed (description)
  - before: Summary 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. Sample rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
  - after: Summary 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. Sample rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
- 2026-10-03 `find_endpoints` changed (description)
  - before: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
  - after: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
- 2026-10-03 `payability_verdict` changed (description)
  - before: 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 seen. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
  - after: 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 seen. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it. A scan that did not contain the resource does not break the run, so verdict_since can span weeks nobody measured. How current a row is comes from last_checked_at and in_latest_scan, not from verdict_since alone.
- 2026-09-30 `host_summary` changed (description)
  - before: Summary 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. Sample rows with in_latest_scan=false carry a verdict from an earlier scan; read verdict_age_days. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
  - after: Summary 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. Sample rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
- 2026-09-30 `find_endpoints` changed (description)
  - before: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false carry a verdict from an earlier scan; read verdict_age_days. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
  - after: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
- 2026-09-29 `host_summary` changed (description)
  - before: Summary 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. Sample rows with in_latest_scan=false carry a verdict from an earlier scan; read verdict_age_days. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan.
  - after: Summary 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. Sample rows with in_latest_scan=false carry a verdict from an earlier scan; read verdict_age_days. n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.
- 2026-09-29 `find_endpoints` changed (description)
  - before: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false carry a verdict from an earlier scan; read verdict_age_days. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first.
  - after: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their latest verdict, plus the total match count. Use this first when you do not know the exact resource URL. Rows with in_latest_scan=false carry a verdict from an earlier scan; read verdict_age_days. Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and sort=price for the cheapest first. last_checked_at is the last time any scan looked at the resource; verdict_since is when the current verdict was first observed in the unbroken run that leads to it.

Full history: https://api.protogrid.dev/v1/servers/org.nsgoods%2Fnsgoods-workbench-mcp/changes

## Remotes

- https://mcp.nsgoods.org/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (8)

- `catalogue_stats`: Size and health of the x402 catalogue as of the latest full scan: resources, hosts, verdict
    counts, and payable endpoints per network.
- `drift_status`: Verdict changes between the two latest full scans (catalogue wide, or for one host), plus the
    declared model drift watch.
- `find_endpoints`: Search the catalogue by host or URL substring. Returns up to `limit` endpoints (max 50) with their
    latest verdict, plus the total match count. Use this first when you do not know the exact resource URL.
    Rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed.
    Optional network filter (for example eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) and
    sort=price for the cheapest first.
    last_checked_at is the currency claim: the last time any scan or reprobe looked at this resource. in_latest_scan means only that the resource was in the latest full scan; a row reprobed the same day can carry in_latest_scan=false and still be current. verdict_since is when the current
    verdict was first observed in the unbroken run that leads to it. A scan that did not
    contain the resource does not break the run, so verdict_since can span weeks nobody
    measured. How current a row is comes from last_checked_at and in_latest_scan, not from
    verdict_since alone.
- `host_summary`: Summary 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.
    Sample rows with in_latest_scan=false were not in the latest full scan; read last_checked_at for when they were last probed.
    n_resources counts every resource ever seen for this host; current_verdict_mix and n_payable_last_full count only the latest full scan.
    last_checked_at is the currency claim: the last time any scan or reprobe looked at this resource. in_latest_scan means only that the resource was in the latest full scan; a row reprobed the same day can carry in_latest_scan=false and still be current. verdict_since is when the current
    verdict was first observed in the unbroken run that leads to it. A scan that did not
    contain the resource does not break the run, so verdict_since can span weeks nobody
    measured. How current a row is comes from last_checked_at and in_latest_scan, not from
    verdict_since alone.
- `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 seen.
    last_checked_at is the currency claim: the last time any scan or reprobe looked at this resource. in_latest_scan means only that the resource was in the latest full scan; a row reprobed the same day can carry in_latest_scan=false and still be current. verdict_since is when the current
    verdict was first observed in the unbroken run that leads to it. A scan that did not
    contain the resource does not break the run, so verdict_since can span weeks nobody
    measured. How current a row is comes from last_checked_at and in_latest_scan, not from
    verdict_since alone.
- `reports`: Published weekly payability reports (from the signed manifest).
- `verify_signature`: Offline EIP-191 verify of a signed nsgoods response. Identifies the service from the
    manifest (or the optional `service` arg), strips exactly that service's post-sign fields,
    canonicalises (JCS, both ASCII modes), recovers the signer and checks it against the
    published manifest signers. Reproduction-attestation (JCS/byte-length) and envelope
    (signer/signature, components) shapes are reported as unsupported_shape, not verified here.
    Refusals carry a distinct status: malformed_signature (signature is not a 65-byte 0x-prefixed
    hex string), schema_rejected (the body carries a signed_by/signature pair but fails the required
    field shape for every service the claimed signer covers; recovery was not attempted, checked is
    false, reasons lists the failed candidates), signature_mismatch (well-formed but recovers a
    different address than signed_by under every candidate service recipe of this signer),
    no_flat_recipe (signed_by is a manifest signer but every service it covers uses an envelope shape,
    so there is no flat recipe to check; recovery was not attempted, checked is false),
    unknown_signer (signed_by is not a manifest signer; recovery was not attempted, checked is false),
    unsupported_shape, or the no-signed_by/signature-pair case.
    checked is true only when EIP-191 recovery actually ran; every other refusal reports checked false.
- `x401_status`: Current x401 emitter adoption across the scanned catalogue (from the daily watcher).