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Toolhive MCP

Toolhive MCP is a hosted HTTP MCP server for Cloudflare Workers. It turns a practical bundle of MCP tools into one remote /mcp endpoint so you can connect Claude-compatible clients without running a local stdio server.

What this project is

Use Toolhive MCP when you want:

• one public MCP endpoint instead of a local daemon
• Cloudflare Workers deployment with low operational overhead
• Anthropic-compatible canonical tool names such as context7_query_docs and tavily_search
• a manifest-driven tool surface that stays aligned with the actual server implementation

Online demo

Copy this demo endpoint directly into your MCP client:

https://mcp.awsl.app/mcp?key=elysia

Additional public endpoints:

• Health: https://mcp.awsl.app/healthz
• Ready: https://mcp.awsl.app/readyz
• Version: https://mcp.awsl.app/version

Quick client setup

All examples below use the live demo endpoint:

https://mcp.awsl.app/mcp?key=elysia

Claude

Add a remote MCP server in Claude and use:

• URL: https://mcp.awsl.app/mcp?key=elysia
• Transport: Streamable HTTP / HTTP MCP

If your Claude build asks for headers instead of a full URL with query params, use https://mcp.awsl.app/mcp and send one of the supported auth options from the next section.

Cursor

In Cursor MCP settings, add a remote server pointing to:

{
  "mcpServers": {
    "toolhive-mcp": {
      "url": "https://mcp.awsl.app/mcp?key=elysia"
    }
  }
}

Cline

In Cline's MCP server configuration, add:

{
  "mcpServers": {
    "toolhive-mcp": {
      "url": "https://mcp.awsl.app/mcp?key=elysia"
    }
  }
}

Cherry Studio

In Cherry Studio, create a custom MCP server with:

• Name: toolhive-mcp
• Type: Remote / HTTP MCP
• URL: https://mcp.awsl.app/mcp?key=elysia

Codex

For Codex clients that accept remote MCP configuration, use:

{
  "mcp_servers": {
    "toolhive-mcp": {
      "url": "https://mcp.awsl.app/mcp?key=elysia"
    }
  }
}

Supported authentication

Toolhive MCP currently supports these authentication styles:

• Bearer
• x-api-key / API key
• query key

Examples:

Authorization: Bearer elysia

x-api-key: elysia

https://mcp.awsl.app/mcp?key=elysia

This release uses only Bearer, x-api-key / API key, or query key authentication.

Self-hosting

For your own deployment, point clients to:

• MCP: https://<your-worker-domain>/mcp
• Health: https://<your-worker-domain>/healthz
• Ready: https://<your-worker-domain>/readyz
• Version: https://<your-worker-domain>/version

Deploy to Cloudflare Workers

Repository: https://github.com/DoingDog/toolhive-mcp

Manual deployment:

npm install
npm run deploy

The project uses the repository's existing wrangler.jsonc configuration.

Optional third-party secrets

Only configure the providers you want to expose:

npx wrangler secret put MCP_AUTH_KEYS
npx wrangler secret put TAVILY_API_KEYS
npx wrangler secret put CONTEXT7_API_KEYS
npx wrangler secret put EXA_API_KEYS
npx wrangler secret put UNSPLASH_ACCESS_KEYS
npx wrangler secret put PUREMD_API_KEYS
npx wrangler secret put PAPER_SEARCH_MCP_UNPAYWALL_EMAILS

Key notes:

• MCP_AUTH_KEYS enables auth checks for protected /mcp methods only after you configure it.
• MCP_AUTH_KEYS accepts one key or a comma-separated list of keys. Valid characters are letters, numbers, _, and -.
• PAPER_SEARCH_MCP_UNPAYWALL_EMAILS is used for Unpaywall access and the paper_get_open_access tool.
• PAPER_SEARCH_MCP_UNPAYWALL_EMAILS accepts one email or a comma-separated list of emails.
• Provider key secrets can contain one key or a comma-separated list of keys.

Tool catalog

The block below is generated from the manifest and should be refreshed with npm run render:readme.

Generated tool snapshot

Demo endpoint: https://mcp.awsl.app/mcp?key=elysia

Supported auth:

• Bearer
• x-api-key / API key
• query key

Manifest-backed tool surface:

• Native tools: weather, time, whoami, webfetch, calc
• Paper tools: paper_search, paper_get_details, paper_get_related
• Env-gated paper tool: paper_get_open_access
• External tools: iplookup
• Env-gated external tools: exa_search, tavily_search, tavily_extract, tavily_crawl, context7_resolve_library_id, context7_query_docs, puremd_extract, unsplash_search_photos
• Developer utilities: devutils_base64_encode, devutils_base64_decode, devutils_hash, devutils_uuid, devutils_jwt_decode, devutils_json_format, devutils_json_validate, devutils_regex_test, devutils_url_parse, devutils_timestamp_convert, devutils_ip_validate, devutils_cidr_calculate, devutils_text_stats, devutils_slugify, devutils_case_convert

Built-in resources:

• resource://toolhive/overview (text/markdown, static)
• resource://toolhive/auth (text/markdown, static)
• resource://toolhive/catalog (text/markdown, static)
• resource://toolhive/runtime/enabled (application/json, runtime)

Built-in prompts:

• choose_tool_for_task, research_with_sources, developer_utility_workflow
• Run npm run render:readme to refresh this block from src/mcp/tool-manifest.ts, src/mcp/resource-manifest.ts, and src/mcp/prompt-manifest.ts.

Development

Local development workflow:

npm install
npm test
npm run typecheck
npm run dev

Useful notes:

• npm run dev starts the Worker locally through Wrangler
• npm test runs the Vitest suite
• npm run typecheck runs TypeScript without emitting build output
• GET /version reports runtime package metadata from package.json

Current release notes

Disabled domain tools

Domain-related tools are intentionally disabled in this release.

The codebase still contains domain integration code for possible future re-enable, but the released MCP surface does not expose any domain_* tools.

Disabled news tools

News tools are intentionally disabled in this release.

The codebase still contains news integration code for possible future re-enable, but the released MCP surface does not expose any news_* tools.

License

This project is released under the 0BSD license. See LICENSE.