CiteStamp — Claude Code MCP server: what it does, how to install
Verifies academic citations across scholarly registries and flags retracted papers directly in agent chats.
claude mcp add --transport http citestamp https://mcp.citestamp.com/mcpWhat CiteStamp does
The server is hosted remotely over HTTP. Nothing runs locally. It queries Crossref, DataCite, and doi.org before your agent prints a bibliography. This stops made-up sources from slipping into generated summaries.
Tools include check_reference for resolving DOIs and arXiv identifiers, retraction_listing for Retraction Watch notices, and edge lookups like what_supports or what_refutes. Data records separate machine inferences from entries signed by ORCID holders.
Anonymous access allows 10 requests each minute per IP. A malformed token triggers an immediate HTTP 401 error rather than a silent fallback, so add the authorization header only when a valid key is ready.
What it helps with
- verify whether a DOI or arXiv identifier resolves to a real paper
- check if a study appears in Retraction Watch records
- retrieve papers supporting or contesting a specific claim
- prevent hallucinated citations in generated research summaries
Example prompts for the agent
- Check this DOI using CiteStamp before adding it to the reference list.
- Use retraction_listing to see if the cited paper has been pulled.
- Find papers that support or refute this argument with what_supports.
How to install CiteStamp
Platform CLI: remote server
claude mcp add --transport http citestamp https://mcp.citestamp.com/mcpPlatform CLI: remote server
codex mcp add citestamp --url https://mcp.citestamp.com/mcpConfig file
{
"mcpServers": {
"citestamp": {
"url": "https://mcp.citestamp.com/mcp"
}
}
}Config file
{
"servers": {
"citestamp": {
"type": "http",
"url": "https://mcp.citestamp.com/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http citestamp https://mcp.citestamp.com/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about CiteStamp
How to install CiteStamp in Claude Code?
Run claude mcp add --transport http citestamp https://mcp.citestamp.com/mcp in your terminal. No local build or package download is required.
What does CiteStamp do?
It connects agents to public research databases like Crossref and DataCite to verify that paper citations actually exist and checks if any work has been flagged as retracted.
Is an API key required to use CiteStamp?
No key is required for baseline usage at 10 requests per minute per IP. Users who need higher rate limits can request a free token and pass it via an authorization header.
