REI Crypto MCP Server

Instructions

Get historical APY and TVL of a pool.

Parameters:
    pool: pool id (can be retrieved from /pools)

Implementation Reference

• defillama_server.py:451-461 (handler)

  The handler function for the 'get_yield_chart' MCP tool. It is decorated with @mcp.tool(), which registers it, and implements the tool logic by calling the DefiLlama API endpoint /yields/chart/{pool} to retrieve historical APY and TVL for a given pool ID.

  @mcp.tool()
  async def get_yield_chart(pool: str) -> str:
      """GET /yields/chart/{pool}
      
      Get historical APY and TVL of a pool.
      
      Parameters:
          pool: pool id (can be retrieved from /pools)
      """
      result = await make_request('GET', f'/yields/chart/{pool}')
      return str(result)

• defillama_server.py:30-38 (helper)

  Shared utility function used by the get_yield_chart handler (and all other tools) to perform HTTP requests to the DefiLlama Pro API.

  async def make_request(method: str, endpoint: str, params: Optional[Dict[str, Any]] = None) -> Any:
      """Make a request to the DefiLlama API."""
      try:
          response = await client.request(method, endpoint, params=params)
          response.raise_for_status()
          return response.json()
      except Exception as e:
          return f"Error: {str(e)}"