OpenChainBench MCP MCP server

An official MCP server providing machine-readable access to live, neutral benchmarks for public RPC latency, oracles, bridges, perpetual DEXs, and prediction markets. It allows AI agents to list benchmarks, retrieve detailed provider rankings and sparklines, query answers to specific questions, and access raw PromQL data without requiring authentication.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by OpenChainBench

MCP endpoint (Streamable HTTP)

https://openchainbench.com/api/mcp/mcp

Vendor documentation

What you can do with it

List all published benchmarks with current values and leaders
Retrieve detailed benchmark data including provider rankings and 24h sparklines
Query answers to specific questions based on live data
Access raw PromQL data for benchmark metrics

Tools advertised by the last live check:

list_benchmarks
search_benchmarks
get_benchmark
compare_providers
recommend_provider
list_answers

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http openchainbench-mcp https://openchainbench.com/api/mcp/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add openchainbench-mcp --url https://openchainbench.com/api/mcp/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable openchainbench-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "openchainbench-mcp": {
      "url": "https://openchainbench.com/api/mcp/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "openchainbench-mcp": {
      "type": "streamableHttp",
      "url": "https://openchainbench.com/api/mcp/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start openchainbench-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "openchainbench-mcp": {
      "type": "http",
      "url": "https://openchainbench.com/api/mcp/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http openchainbench-mcp https://openchainbench.com/api/mcp/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "openchainbench-mcp": {
      "url": "https://openchainbench.com/api/mcp/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "openchainbench-mcp": {
      "serverUrl": "https://openchainbench.com/api/mcp/mcp"
    }
  }
}

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