MCP server · Collate

openmetadata

OpenMetadata (the product Collate commercializes) ships a hosted, remote MCP (Model Context Protocol) server. The public sandbox exposes it at https://sandbox.open-metadata.org/mcp and advertises a full OAuth 2.1 / OIDC authorization surface via /.well-known/openid-configuration and /.well-known/oauth-authorization-server (issuer https://sandbox.open-metadata.org/mcp, authorization_code + refresh_token grants, PKCE S256, dynamic client registration). The endpoint is live: GET /mcp returns 405 (method not allowed) and an unauthenticated JSON-RPC tools/list POST returns 401 (McpError, token required) — confirming a real MCP transport that requires OAuth. The MCP server is bundled in the OpenMetadata server (self-hostable); the URL below is the public sandbox instance. Tool list is not enumerated here because it requires authentication (401) and is not published statically; it exposes OpenMetadata's search/read/govern operations over data assets.

Open endpoint → Collate provider profile

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Provider: Collate Type: Hosted endpoint Transport: http Host: sandbox.open-metadata.org

Endpoint

https://sandbox.open-metadata.org/mcp

Hosted endpoint · transport http

Connect

This is a remote MCP server — point an MCP client at the endpoint URL. Clients with native remote support (Claude, Cursor, VS Code, …):

# mcp client config (e.g. .mcp.json / mcp settings) { "mcpServers": { "collate": { "url": "https://sandbox.open-metadata.org/mcp" } } }

For stdio-only clients (older Claude Desktop, etc.), bridge with mcp-remote:

# Add to claude_desktop_config.json { "mcpServers": { "collate": { "command": "npx", "args": ["-y", "mcp-remote", "https://sandbox.open-metadata.org/mcp"] } } }

If the server requires authentication, add the provider's token/header (e.g. an X-API-Key) per its docs. A quick reachability check:

curl -i -X POST https://sandbox.open-metadata.org/mcp \ -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

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