# Citation Check

> Does a cited URL exist, and does the source name what your claim names? Two answers.

- name: io.github.SecondStageTurbine/citation-check
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 77/100 flags: no-repository
- quality: 85/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.SecondStageTurbine%2Fcitation-check
- tools: https://api.protogrid.dev/v1/servers/io.github.SecondStageTurbine%2Fcitation-check/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "citation-check": {
      "type": "http",
      "url": "https://exmachina-ai.fly.dev/verify"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 85
- provenance: 45
- drivers: +website +reachable +uptime-100% ~updated-68d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 85/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 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: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 2 of 2 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: verdict_meanings (idempotentHint); check_citation (idempotentHint)
- pass `tools.token_cost`: about 276 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no 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: 2, about 276 tokens to load them all
- tool set hash: 1cfce1ab53c57151c8c0214e3f64f041
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.SecondStageTurbine/citation-check.svg)](https://protogrid.dev/servers/io.github.SecondStageTurbine/citation-check)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://exmachina-ai.fly.dev/verify (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (2)

- `check_citation`: Fetch a URL and report whether it exists, and whether the source names the same entity as the claim you attach to it. These are two different questions and conflating them is the failure this exists to catch: a URL can return 200 and describe a different gene entirely. No account needed, nothing is stored about you.
- `verdict_meanings`: The exact semantics of every status and relevance value, including what this checker cannot determine. Read once before trusting a verdict.