json-rpc MCP servers & tools

23 Model Context Protocol servers tagged “json-rpc”, ranked by usage. Connect any of them to Claude Desktop, Cursor or Windsurf in one step.

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Openclaw Control MCP
MCP server bridging Claude Code to the OpenClaw gateway management plane via JSON-RPC.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 1
Blog
Cloudflare Workers MCP server: blog. REST + MCP (JSON-RPC 2.0). Live: api.lazy-mac.com/blog
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
Nodeflare MCP
Nodeflare-app
Pay-per-request JSON-RPC on 23 EVM chains (Ethereum, Base, Arbitrum, plus young chains Robinhood Chain, Plasma, Ink, Zircuit) from independent bare-metal nodes. Free reads with no key; heavy methods (ethgetLogs, trace, debug) via a free API key or x402 USDC pay-per-call on Base/Polygon/Arbitrum. In the official MCP Registry. npx -y nodeflare-mcp
Finance & Fintech
Upvotes: 0Installs: 0GitHub stars: 1
MCP35
infaton
INFATON MCP Server for 1C:Enterprise ERP — 35 tools for metadata inspection, document CRUD, register queries, and BSP integration. First MCP server for Russian ERP systems. JSON-RPC 2.0 compliant BSL implementation.
Finance & Fintech
Upvotes: 0Installs: 0GitHub stars: 42
AI Gateway
Cloudflare Workers MCP server: ai-gateway
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
AI Model Router
Cloudflare Workers MCP server: ai-model-router
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
AI Token Counter
Cloudflare Workers MCP server: ai-token-counter
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
AI Eval
Cloudflare Workers MCP server: ai-eval. REST + MCP (JSON-RPC 2.0). Live: api.lazy-mac.com/ai-eval
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
AI Prompt Optimizer
Cloudflare Workers MCP server: ai-prompt-optimizer
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
Cron Monitor
Cloudflare Workers MCP server: cron-monitor
Monitoring
Upvotes: 0Installs: 0GitHub stars: —
Animica
OpenAI-compatible AI inference, code, embeddings & agent tools for bots — and mine ANM.
Knowledge & Memory
Upvotes: 0Installs: 0GitHub stars: 4
Evm MCP
JamesANZ
An MCP server that provides complete access to Ethereum Virtual Machine (EVM) JSON-RPC methods. Works with any EVM-compatible node provider including Infura, Alchemy, QuickNode, local nodes, and more.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 3
AI Rate Limit Tracker
Cloudflare Workers MCP server: ai-rate-limit-tracker
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
Llm Output Quality Monitor
Cloudflare Workers MCP server: llm-output-quality-monitor
Monitoring
Upvotes: 0Installs: 0GitHub stars: —
M
MoltNode by Chord
Hosted MCP server, no API key: read 31 blockchains over JSON-RPC and get best-route DEX swap quotes with unsigned transactions and a simulation via Chord. Non-custodial. Endpoint https://moltnode.ag/mcp.
Finance & Fintech
Upvotes: 0Installs: 0GitHub stars: —
M
MCP Endpoint Lint handshake, tool schemas, JSON RPC errors
Lint any MCP endpoint you name: handshake, tool schemas, error conformance. Free, no key.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
Agent Loop Detector
Cloudflare Workers MCP server: agent-loop-detector
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
Agent Trace Auditor
Cloudflare Workers MCP server: agent-trace-auditor
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
AI Cost Optimizer
Cloudflare Workers MCP server: ai-cost-optimizer
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
AI Crawler Policy
Cloudflare Workers MCP server: ai-crawler-policy
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
API Landing
Cloudflare Workers MCP server: api-landing
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
Cron Collision Detector
Cloudflare Workers MCP server: cron-collision-detector
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —
Diff Patch Tools
Cloudflare Workers MCP server: diff-patch-tools
Cloud Platforms
Upvotes: 0Installs: 0GitHub stars: —