Building agents MCP servers

opcastil11/apuchat-cli

MCP server Claude CodeCodexCursor +2

Real-time chat for AI agents. Claude Code, Cursor, Cline and Codex join channels over MCP. Remote server at apuchat.com.

bystray/gonka-mcp-server

MCP server Claude CodeCodexCursor +2

A second opinion for AI agents: one prompt across several live Gonka models + roles, one call. Remote server at mcp.gogonka.com.

c64dos-png/vector-mirror

MCP server Claude CodeCodexCursor +2

Deterministic SVG perception for LLM agents — measures, never guesses. MCP server. Runs locally from the vector-mirror npm package.

caglarbozkurt/mcp-heimdall

MCP server Claude CodeCodexCursor +2

Scan an MCP server or agent config for injection, exfiltration, and risky capabilities. Runs locally from the mcp-heimdall-scan npm package.

calvinling2021-star/synapse

MCP server Claude CodeCodexCursor +2

Lints + auto-fixes how AI coding agents discover any new product. 24 rules, 6 tools, score 0-100. Runs locally from the @calvin8miles/mcp-server npm package. Needs 2 environment variables to run.

cantbeblank96/qodercli-mcp

MCP server Claude CodeCodexCursor +2

MCP server mode for Qoder CLI — delegate coding tasks to local Qoder agents from any MCP client. Runs locally from the qodercli-mcp npm package. Needs 4 environment variables to run.

carsonroell-debug/selfheal-mcp

MCP server Claude CodeCodexCursor +2

Self-healing proxy for MCP servers with retry, circuit breaker, and observability. Runs locally from the selfheal-mcp npm package. Needs 3 environment variables to run.

chevy155/fractal-process-intelligence-mcp

MCP server Claude CodeCodexCursor +2

Research Alpha MCP recorder: process X-Rays showing if more AI added independent intelligence. Remote server at mcp.fractalinfinity.io.

chrassy/klanex-mcp

MCP server Claude CodeCodexCursor +2

Reliable async execution for agent tool calls: schema gating, retries, idempotency, audit trail. Runs locally from the klanex-mcp npm package. Needs 1 environment variable to run.

chrisgu/lobex-mcp

MCP server Claude CodeCodexCursor +2

Agent-to-agent marketplace MCP: list skills, buy/sell services, earn gas, cash out BTC. Remote server at lobex.app.

cloud1map/agent-relay

MCP server Claude CodeCodexCursor +2

Agent Relay MCP: invite-based channels, agent contracts and per-side human approvals. Runs locally from the @cloud1map/agent-relay-mcp npm package. Needs 1 environment variable to run.

crunchtools/mcp-gemini

MCP server Claude CodeCodexCursor +2

MCP server for Google Gemini AI - text, image, video, research, and more. Runs locally from the mcp-gemini-crunchtools Python package.

cthulhutoo/agentry-mcp

MCP server Claude CodeCodexCursor +2

Agent registry with Nostr identity, reputation, escrow, observability, and Lightning payments. Remote server at api.agentry.com.

daedalus/mcp-llm-gateway

MCP server Claude CodeCodexCursor +2

MCP-compatible LLM gateway that proxies completion requests to downstream OpenAI-compatible providers. Runs locally from the mcp-llm-gateway Python package.

daedalus/mcp-smart-proxy

MCP server Claude CodeCodexCursor +2

Token-efficient MCP server gateway with semantic tool search. Runs locally from the mcp-smart-proxy Python package.

WOOWTECH/Woow_opendesign_mcp_server

MCP server Claude CodeCodexCursor +2

MCP server "od-mcp-server" as configured in WOOWTECH/Woowopendesignmcpserver. Runs locally from the od-mcp-server Python package.

davidmosiah/delx-witness-protocol

MCP server Claude CodeCodexCursor +2

Free agent continuity MCP: resume after compaction, warm handoff, recover from failure. No key. Remote server at api.delx.ai.

davidmosiah/mcp-scorecard

MCP server Claude CodeCodexCursor +2

Agent-readiness scorecard for any MCP server: 10 checks, 0-100 score, actionable findings. Runs locally from the mcp-scorecard npm package.

dbsectrainer/mcp-agent-trace-inspector

MCP server Claude CodeCodexCursor +2

Step-by-step observability for MCP agent workflows. Runs locally from the mcp-agent-trace-inspector npm package. Needs 1 environment variable to run.

dbsectrainer/mcp-cost-tracker-router

MCP server Claude CodeCodexCursor +2

Real-time cost awareness for MCP agent workflows. Runs locally from the mcp-cost-tracker-router npm package. Needs 1 environment variable to run.

denial-web/agent-immune

MCP server Claude CodeCodexCursor +2

Adaptive threat intelligence for AI agent security — semantic memory, multi-turn escalation, output scanning, rate limiting, and prompt hardening. Runs locally from the agent-immune Python package.

devchad-cmd/skilldb-sdk

MCP server Claude CodeCodexCursor +2

A registry of 5,900+ peer-authored skills any MCP agent can search and load on demand. Runs locally from the skilldb npm package.

dingdawg/loop-protocol

MCP server Claude CodeCodexCursor +2

Safe scheduled AI agents with governance gates. Verified, receipted, fail-closed. Runs locally from the dingdawg-loop npm package. Needs 1 environment variable to run.

dir-ai/voyager-agent

MCP server Claude CodeCodexCursor +2

One universal Voyager: name a goal; it activates senses (repo, net) and runs a live mission. Runs locally from the @dir-ai/voyager-agent npm package.