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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "paper-lookup": {
      "type": "http",
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  }
}

claude mcp add --transport http paper-lookup https://paper-lookup-production-56b0.up.railway.app/mcp

[mcp_servers.paper-lookup]
url = "https://paper-lookup-production-56b0.up.railway.app/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "paper-lookup": {
      "type": "remote",
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "paper-lookup": {
      "type": "http",
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=paper-lookup&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcGFwZXItbG9va3VwLXByb2R1Y3Rpb24tNTZiMC51cC5yYWlsd2F5LmFwcC9tY3AifQ%3D%3D"
}

{
  "servers": {
    "paper-lookup": {
      "type": "http",
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  }
}

{
  "mcpServers": {
    "paper-lookup": {
      "httpUrl": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  }
}

extensions:
  "paper-lookup":
    enabled: true
    name: "paper-lookup"
    type: streamable_http
    uri: "https://paper-lookup-production-56b0.up.railway.app/mcp"
    timeout: 300

Quality 73 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: paper_lookup (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
pass
tools.token_costabout 328 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 3 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

1 tools, about 328 tokens to load them all · tool set 4a25b4bd2b4a · checked 2026-10-20 13:17 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 67 / 100

unreachable

provenance90

liveness0

freshness100

hygiene100

+repository +namespace-matches-repo +website -unreachable(3 failures) +updated-3d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://paper-lookup-production-56b0.up.railway.app/mcp` streamable-http	none	no (3 failures)	40%	334 ms	2025-11-25	2026-10-17

Tools (1)

paper_lookup Scholarly works metadata from Crossref (150M+ records): resolve a DOI, or search by keywords, author or title with year and type filters. Returns title, authors with ORCID, journal or publisher, publication date, type, ISSN/ISBN, citation count, references count, licence and full-text links, funders. Abstracts are excluded. Use when an agent must verify a citation or DOI, find papers on a topic, or get a paper's authors, journal, date, citation count and links. Paid per call via x402 (USDC on Base).

Schemas: list_tools.

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Official server.json

{
  "name": "io.github.pcp183/paper-lookup",
  "title": "Research Paper & DOI Lookup (Crossref)",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.2.0",
  "repository": {
    "url": "https://github.com/pcp183/paper-lookup",
    "source": "github"
  },
  "websiteUrl": "https://paper-lookup-production-56b0.up.railway.app",
  "description": "Verify a DOI or find papers via Crossref metadata. $0.005/call via x402."
}