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Fenn: MCP server (Search & research) in 2026

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Reachable on 2026-10-27: sign-in required, tools not listed Rank 72 of 94 in Search & research. Source: MCP Registry record, checked 2026-10-27.

Key facts

TypeMCP server, remote (streamable HTTP)
CategorySearch & research
Endpointhttps://api.fenn.sh/mcp
Registry namesh.fenn/fenn
Version (registry)1.0.0
Published in registry2026-10-18
Registry record updated2026-10-18
Repositoryhttps://github.com/Questera-Marketing/fenn-mcp
Websitehttps://fenn.sh
AuthenticationCustom header required: Authorization
Latest checkReachable, sign-in required on 2026-10-27, 130 ms to initialize
Checks passed0 of 1 daily checks
Sourcehttps://registry.modelcontextprotocol.io/v0/servers/sh.fenn%2Ffenn/versions/latest (pulled 2026-10-27)

Verification history

One probe a day: initialize, then tools/list, nothing else. Last 1 checks: 10-27 sign-in

Install

Claude Code
claude mcp add --transport http fenn https://api.fenn.sh/mcp --header "Authorization: <your Authorization>"
Claude (claude.ai, Desktop) (not applicable)

Not applicable: this server needs a custom header (Authorization) that custom connectors in claude.ai cannot send. Use Claude Code or a config file.

Cursor
{
  "mcpServers": {
    "fenn": {
      "url": "https://api.fenn.sh/mcp",
      "headers": {
        "Authorization": "<your Authorization>"
      }
    }
  }
}

Save as ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).

ChatGPT (not applicable)

Not applicable: this server needs a custom header (Authorization); ChatGPT connectors support no authentication or OAuth only.

Hermes Agent
mcp_servers:
  fenn:
    url: "https://api.fenn.sh/mcp"
    headers:
      Authorization: "<your Authorization>"

Add to ~/.hermes/config.yaml, then run /reload-mcp.

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