crossref-mcp
by jtl-neo
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| CACHE_TTL | No | Cache TTL in seconds. | 86400 |
| LOG_LEVEL | No | Log level (logs go to stderr). | INFO |
| REDIS_URL | No | Enable Redis cache + shared rate limiting (optional). | |
| MCP_API_KEY | No | If set, HTTP requests need a matching X-API-Key header (/health exempt). | |
| MCP_TRANSPORT | No | Transport mode: 'stdio' or 'http'. | stdio |
| CROSSREF_MAILTO | No | Email for Crossref's polite pool (recommended). | |
| CROSSREF_TIMEOUT | No | Per-request timeout in seconds. | 30 |
| CROSSREF_BASE_URL | No | API base URL. | https://api.crossref.org |
| RATELIMIT_BACKEND | No | Rate limiting backend: 'in-memory' or 'redis'. | in-memory |
| CROSSREF_PLUS_TOKEN | No | Crossref Plus API token (sent as a header). |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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