# CiteStamp

> Check that a reference resolves; see what supports, refutes or cites a paper. CC0 graph, read-only.

- name: com.citestamp/citestamp
- version: 1.3.0
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.citestamp%2Fcitestamp
- tools: https://api.protogrid.dev/v1/servers/com.citestamp%2Fcitestamp/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "citestamp": {
      "type": "http",
      "url": "https://mcp.citestamp.com/mcp",
      "headers": {
        "Authorization": "Bearer ${CITESTAMP_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${CITESTAMP_TOKEN}`.

## Trust

- hygiene: 100
- liveness: 97
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +dns-namespace +reachable +uptime-93% +updated-1d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### 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: 100 (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`: 7 of 7 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,864 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`: 2 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: 7, about 1,864 tokens to load them all
- tool set hash: 16450f6004406655409617adce4af2a7
- tools last changed: 2026-10-18T19:58:55.407Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.citestamp/citestamp.svg)](https://protogrid.dev/servers/com.citestamp/citestamp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-18 `check_reference` added
  - Whether a reference resolves to a real work. Use when an answer is about to cite a paper. Give a DOI, an arXiv id or the reference as written. Answers found, confirm (with the reason), not found in the named sources on a date, or couldn't check. A not-found is not proof a work was never published.
- 2026-10-03 `retraction_listing` added
  - Whether the Retraction Watch database lists the given DOI as retracted, from the dated export CiteStamp joins weekly. Use when a user asks whether a paper has been retracted or carries a retraction notice. Not listed means not in that export; the publisher record is not checked.

Full history: https://api.protogrid.dev/v1/servers/com.citestamp%2Fcitestamp/changes

## Remotes

- https://mcp.citestamp.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.9285714)

## Packages

_none_

## Tools (7)

- `check_reference`: Whether a reference resolves to a real work. Use when an answer is about to cite a paper. Give a DOI, an arXiv id or the reference as written. Answers found, confirm (with the reason), not found in the named sources on a date, or couldn't check. A not-found is not proof a work was never published.
- `edges_about`: Every edge touching the given work in either direction, each tagged asserted|inferred with attribution and provenance. Use when a user asks 'what is known about this paper's citations' or wants the whole neighbourhood in one call. Paged.
- `references_of`: What the given work CITES (its reference list). Use when a user asks what a paper relies on, whether a specific citation in it exists, or wants to check a reference before reusing it. Paged.
- `retraction_listing`: Whether the Retraction Watch database lists the given DOI as retracted, from the dated export CiteStamp joins weekly. Use when a user asks whether a paper has been retracted or carries a retraction notice. Not listed means not in that export; the publisher record is not checked.
- `what_cites`: Works that CITE the given DOI (incoming citations). Use when a user asks who cites a paper, how much a work has been cited, or whether a claimed 'cited by' is real. Returns edges with tier + attribution; paged.
- `what_refutes`: Edges recorded as REFUTING the given work or claim: human-signed refutations plus failed replication outcomes coded by the FORRT Replication Database. Use when a user asks whether a finding failed to replicate or has been contradicted.
- `what_supports`: Edges recorded as SUPPORTING the given work or claim: human-signed support claims plus successful replication outcomes coded by the FORRT Replication Database. Use when a user asks whether a finding held up or was replicated.