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RPC gateway for agents: six mainnets, measured failover, a key without signup, pay per call in USDC.
MCP endpoint :https://flexyield.io/mcp · website · measurements and detailsUSDC-gated Base JSON-RPC: free 10 req/min, $0.50 per 10k. Failover, cache, /mcp, ledger.
MCP endpoint :https://basebalance.cloud/mcp · website · measurements and details24 NEAR + Solana + Base blockchain endpoints with x402 USDC micropayments
MCP endpoint :https://ironflip.duckdns.org · measurements and detailsMCP server for Nerve blockchain JSON-RPC & REST API for AI Agents
Package npm :nerve-rpc-mcp · website · measurements and detailsWallet-signed Solana RPC for AI agents. No API keys, LLM-safe amounts, pay-per-call in SOL.
MCP endpoint :https://solana-pulse-gateway-1021990235790.us-central1.run.app/mcp · website · measurements and detailsSolana RPC (keyless)
MCP endpoint :https://gateway.pipeworx.io/solana-rpc/mcp · website · measurements and detailsDurable identity and memory for AI agents, anchored on the Emercoin blockchain.
MCP endpoint :https://api.steledger.com/mcp · website · measurements and detailsKeyless multi-chain EVM JSON-RPC, indexed Data API, docs, CU pricing and status. API key optional.
MCP endpoint :https://docs.blockvectra.com/mcp · website · measurements and detailsProve you made it first. Blockchain Timestamp creative work via Claude or any MCP-enabled AI Agent.
MCP endpoint :https://gateway.sparxx.io/mcp · website · measurements and detailsFind your AI agent's likely failure mode, get runtime settings, and clarify ambiguous prompts.
MCP endpoint :https://rpcs1.dev/mcp · website · measurements and details168 MCP tools: token prices, whale tracking, DeFi, wallets across Base/Tron/BTC/XRP/Kaspa
MCP endpoint :https://bridge.eruditepay.com:4100/mcp · website · measurements and details{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
MCP endpoint :https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/lint · website · measurements and detailsRead Discord channels, follow new messages and control calls from your AI assistant.
Package mcpb :https://github.com/ver-1000000/discord-rpc-mcp/releases/download/v1.1.0/discord-rpc-mcp-v1.1.0.mcpb · website · measurements and detailsRead-only MCP server for querying the live NOVAI blockchain over its public JSON-RPC endpoint.
Package npm :novai-mcp-server · website · measurements and detailsPay-per-call x402 gateway: agent tools, OpenAI-compatible LLM, market data, RPC, security audits.
MCP endpoint :https://mcp.daedalusdevelopmentgroup.com/mcp · website · measurements and detailsBlockchain SSN for AI agents. MCP gateway that blocks at the point of action, tamper evident audit.
MCP endpoint :https://mcp.cyphrex.io/mcp · website · measurements and detailsBlockchain JSON-RPC on 23 EVM chains for AI agents - free tier, API key, or x402 pay-per-call.
Package npm :nodeflare-mcp · website · measurements and detailsMCP server bridging Claude Code to the OpenClaw gateway management plane via JSON-RPC.
Package npm :openclaw-control-mcp · website · measurements and detailsBlockchain data for EVM and Solana: balances, tokens, prices, DeFi and RPC via free-tier vendors
Package oci :ghcr.io/madlabs-tech/onchain-data-mcp:0.2.1 · website · measurements and detailsMonad blockchain gateway for AI agents: balances, transfers, swaps, DeFi, with Privy signing.
Package npm :monad-mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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