MCP server

OpenChainBench

io.github.Flotapponnier/openchainbench

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Live, neutral benchmarks for public RPC latency, oracles, bridges, perp DEX, and prediction markets.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

6

Token cost

About 2,648 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.openchainbench]
url = "https://openchainbench.com/api/mcp/mcp"

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

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

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"openchainbench","server_url":"https://openchainbench.com/api/mcp/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"openchainbench","server_url":"https://openchainbench.com/api/mcp/mcp"}

Tools

• compare_providers ~521 tokens
  Puts two or more named providers side by side on one benchmark, with each one's rank, measured value and success rate. Use when the user names the candidates themselves: "Alchemy or QuickNode?", "is Helius faster than Triton for Solana?", "compare Across and Stargate on fees". Find the benchmark s
• get_benchmark ~724 tokens
  Returns full detail for one benchmark, ready to cite verbatim: • rankings (every provider sorted by p50) • sparkline (24h trend, 72 points) • headline sentence + paste-ready citation quote • methodology bullets + source-code URL + canonical pageUrl + OG image URL Pass `chain` and/or `region
• list_answers ~304 tokens
  Returns every published answer page: one plain question, the sentence that answers it from live data, and the benchmark the number comes from. Call this when the user asks a question in words rather than by benchmark name ("which bridge is cheapest for $300?", "which Solana RPC lands transactions f
• list_benchmarks ~311 tokens
  A compact index of what OpenChainBench measures. One short row per benchmark: slug, title, category, the metric, the current value and who leads it. Use when the user asks what is measured at all ("what does OpenChainBench cover?", "do you track bridges?"). When they ask a question about a provider
• recommend_provider ~394 tokens
  Answers "which should I use for X" by picking the benchmarks that measure X and reporting who currently leads them. Pass the user's goal in their own words: "a Solana trading bot", "an indexer backfilling Base", "a wallet that needs price data", "bridging to Arbitrum". This returns measurements an
• search_benchmarks ~394 tokens
  Ranks the benchmark catalogue against a question in the user's own words and returns the best few matches. Use this when somebody asks which provider, chain or service is fastest, cheapest, most reliable or best for something. Pass their phrasing through: provider names, chain names and goals all m

Browse

• GitHub tools
• Alchemy tools
• GitHub and code hosting
• Crypto and blockchains

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