REI Crypto MCP Server

Instructions

Get historical TVL (excludes liquid staking and double counted tvl) of a chain.

Parameters:
    chain: chain slug (e.g., 'Ethereum')

Implementation Reference

• defillama_server.py:103-113 (handler)

  Handler function for get_historical_chain_tvl_by_chain tool. Registered via @mcp.tool() decorator. Fetches historical TVL data for a specific chain from DefiLlama API using the shared make_request helper.

  @mcp.tool()
  async def get_historical_chain_tvl_by_chain(chain: str) -> str:
      """GET /api/v2/historicalChainTvl/{chain}
      
      Get historical TVL (excludes liquid staking and double counted tvl) of a chain.
      
      Parameters:
          chain: chain slug (e.g., 'Ethereum')
      """
      result = await make_request('GET', f'/api/v2/historicalChainTvl/{chain}')
      return str(result)

• defillama_server.py:30-38 (helper)

  Shared utility function used by the tool (and others) 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)}"