BlazePhoenix on-chain DEX aggregator MCP server

BlazePhoenix MCP server

On-chain DEX aggregator tools for AI agents. The defining property: every quote is computed by the on-chain Quoter contract (previewPlan, a free ethcall), the same logic that executes the swap, and it runs on your own RPC**. There is no pricing server to trust, and every number an agent relays is reproducible by anyone.

simulation and solvency, all read through the node you configure.

• Local server: @blazephoenix/mcp over stdio. Quotes, unsigned calldata,

stateless). Deployment registry, ABIs and the pure quote codec. It performs no RPC call.

• Remote endpoint: https://blazephoenix.xyz/mcp (streamable HTTP,

• Auth: none · API key: none
• Chains: Base (8453), Ethereum (1), Optimism (10), Arbitrum (42161), Robinhood Chain (4663)

Local server

claude mcp add blazephoenix -e BLAZEPHOENIX_RPC_BASE=<your Base node URL> -- npx -y @blazephoenix/mcp

Any MCP client (JSON config):

{
  "mcpServers": {
    "blazephoenix": {
      "command": "npx",
      "args": ["-y", "@blazephoenix/mcp"],
      "env": { "BLAZEPHOENIX_RPC_BASE": "<your Base node URL>" }
    }
  }
}

The RPC comes from the environment only, never from a tool argument:

A value may hold several URLs separated by commas; they are your fallback order. The server never prints your URLs, since they may carry a key.

Tools

Every tool is read-only. The server never signs and never holds a key. build_swap returns calldata for you to review and sign in your own wallet, and the SDK's wallet-taking execute() is deliberately not exposed.

Remote endpoint

claude mcp add --transport http blazephoenix https://blazephoenix.xyz/mcp

{ "mcpServers": { "blazephoenix": { "type": "http", "url": "https://blazephoenix.xyz/mcp" } } }

The source of the endpoint is in Blaze-Phoenix-API.

Install as a plugin or extension

Claude Code plugin (hosted MCP endpoint plus the BlazePhoenix agent skill):

claude plugin marketplace add blazephoenixxyz-crypto/blazephoenix-mcp
claude plugin install blazephoenix@blazephoenix

Gemini CLI extension (hosted MCP endpoint plus a context file):

Shortened. The full README is on GitHub.