Open Chain Bench MCP Server

OpenChainBench publishes one benchmark at a time, each shipping with the harness that produces its data. The goal is to make performance an observable property of crypto infra, measured in the open, by anyone who wants to add a provider or a metric. It is available as a remote MCP endpoint.

Teams that want a hosted finance endpoint instead of running a local process. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-08-23 · ★ 5 · #216 OF 283 MAINTAINED FINANCE · VERIFIED 2026-08-25

MIT · Go servers · how we verify → /methodology

01 · Install Open Chain Bench

Claude Code

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

Claude Desktop / Cursor / VS Code - add to config

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

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

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

transport: streamable-http

endpoint alive - responded to MCP initialize · probed 2026-08-25

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as remote - your agent's requests go to openchainbench.com

endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect

license MIT - declared in the repository

registry registry publisher io.github.Flotapponnier is not the repo owner (chainbench) - the registry entry was published by someone else

03 · What Open Chain Bench can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.0.1-dataset · 2026-06-22

Webhook trigger for Zenodo archival (Zenodo integration was enabled after v1.0-dataset release, so this version is the first one Zenodo will see). Content identical to v1.0-dataset.

v1.0-dataset · 2026-06-22

First archived release of the OpenChainBench live benchmark dataset. · What's inside · 30+ live benchmarks covering Polymarket and Kalshi prediction markets data freshness, RPC capabilities, L2 block time, EVM swap…

04 · Who maintains Open Chain Bench

OpenChainBench is maintained by chainbench. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

repository: github.com/chainbench/openchainbench
website: https://openchainbench.com/
category: finance - ranked #216 of 283 actively-maintained finance servers as of 2026-08-25.
release cadence: 2 releases in the last 90 days (latest 2026-06-22)
registry: io.github.Flotapponnier/openchainbench (active, first published 2026-07-14)

06 · Open Chain Bench FAQ

What is Open Chain Bench?

Is Open Chain Bench still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-23 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install Open Chain Bench?

Run `claude mcp add chainbench-openchainbench --transport http https://openchainbench.com/api/mcp/mcp`. You can also paste the ready-made client config above.

Does Open Chain Bench require authentication?

No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-08-25; you can connect without credentials.

07 · Alternatives to Open Chain Bench

Alternatives to Open Chain Bench

Maintained finance servers if Open Chain Bench isn't the fit.

Pairs well with

Servers that cover what Open Chain Bench doesn't - only shown when the pairing reason fits the companion.

More finance MCP servers · Clicks Protocol MCP Server · MetricHub Quant - A股量化数据 · Facturacion Electronica Es · Colppy · Banco Do Brasil

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