String Web Access API
MCP Server

Remote (hosted) MCP

Connect to the hosted String Web Access API MCP server — nothing to install.

The hosted MCP server runs at mcp.usestring.ai over Streamable HTTP. There's nothing to install — point your client at the endpoint and authenticate with your String API key. There is no shared server key; your key is forwarded to the API per request, so a valid key is the access control.

Endpoint

https://mcp.usestring.ai/v1/mcp

You can present your API key two equivalent ways:

Send Authorization: Bearer YOUR_API_KEY to /v1/mcp. Use this with clients that support custom headers on a remote MCP server.

https://mcp.usestring.ai/v1/mcp
Authorization: Bearer YOUR_API_KEY

Put the key in the path — /<key>/v1/mcp — for clients that can only configure a URL. The server lifts the leading path segment into the bearer header for you.

https://mcp.usestring.ai/YOUR_API_KEY/v1/mcp

Client configuration

Clients with native remote/HTTP MCP support can use the URL directly. For clients that only speak stdio, bridge to the remote endpoint with mcp-remote:

mcpServers
{
  "mcpServers": {
    "string-ai": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.usestring.ai/YOUR_API_KEY/v1/mcp"]
    }
  }
}

Legacy SSE

An SSE transport is also available at /sse and /<key>/sse for older clients. Prefer the Streamable-HTTP /v1/mcp endpoint for new setups.

Prefer to run it yourself? See Self-hosted.