BlockVectra provides EVM JSON-RPC, indexed blockchain data and a remote MCP endpoint. Developers and AI agents can discover chains, inspect supported methods, read documentation, and check CU pricing and service status without an API key. Indexed Data API and account tools require your own API key; keyless RPC access follows each chain's public method policy. Start with the chain directory and verify the chain ID before reading chain data. Setup: https://github.com/blockvectra/mcp