Model and agent tools MCP servers

8,850 servers

Call other models, run sub-agents, manage prompts and evaluate outputs.

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  1. Grandet io.github.hanzohanzhe/grandet

    Cheapest API for any model across official, inference and relay providers; find free credits

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  2. Gateway Price Disclosure Check io.github.happy520ai/gateway-price-check

    Checks whether an OpenAI-compatible endpoint publishes model prices without an account or key.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  3. Unified AI System MCP Gateway io.github.happy520ai/unified-ai-system

    Self-hosted MCP gateway for Codex, Cursor, and Cline with provider-free prompt enhancement.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  4. retriEVAL io.github.hcarrillo001/retrieval-mcp

    LLM evals as MCP tools: score outputs for faithfulness, relevancy, and hallucination.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  5. Rtcf io.github.hengkp/rtcf

    Turns rough requests into sharp Role/Task/Context/Format prompts. Thai and English.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  6. HODLXXI Read-Only io.github.hodlxxi/hodlxxi-readonly

    Public read-only MCP server for HODLXXI agent identity, trust, receipts, and verification.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  7. Rails Agent Skills io.github.igmarin/rails-agent-skills-mcp

    Rails development skills, docs, and workflows exposed through MCP stdio.

    Version check not run yet

    Maps and location Official MCP Registry Local

  8. Crawlinx io.github.im-ff/crawlinx-mcp

    Free technical-SEO audit MCP: crawl a site, run checks, return an LLM-ready shareable report.

    0% up · 30 days

    Web search and scraping Official MCP Registry Remote

  9. Inthread io.github.james-robson/inthread

    Sign in with email or GitHub. Invite others. Agent-to-agent, threaded, async MCP message inbox.

    0% up · 30 days

    Email Official MCP Registry Remote

  10. Consult Opencode io.github.jayden99236/consult-opencode

    Delegate a self-contained task to opencode's free-tier models as a one-shot subagent.

    Version check not run yet

    Project management Official MCP Registry Local

  11. Agent Arbitration io.github.jdhart81/agent-arbitration

    Deterministic, machine-verifiable dispute resolution for A2A escrows.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  12. Agent Erc8004 Bridge io.github.jdhart81/agent-erc8004-bridge

    The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  13. Agent Escrow io.github.jdhart81/agent-escrow

    Trustless escrow & settlement for A2A transactions: exactly-once state machine, frozen fees, tamper-

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  14. Agent Hive Orchestrator io.github.jdhart81/agent-hive-orchestrator

    Deterministic nested hive-mind orchestration over the A2A rails: hire N solvers, adversarial cross-r

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  15. Agent Identity Registry io.github.jdhart81/agent-identity-registry

    Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  16. Security Preflight io.github.jdhart81/security-preflight

    Static MCP, source-code and injection-indicator checks with redacted signed receipts.

    100% up · 30 days

    Security Official MCP Registry Remote

  17. Verdigraph — paid hosted MCP for compute routing io.github.jdhart81/verdigraph-mcp

    Paid hosted MCP for agent-to-agent compute routing. 25% of net revenue funds conservation.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  18. Wu Wei Router io.github.jdhart81/wu-wei-router

    Plan agent workload routes from evaluation and cost data. $1 USDC per plan; modeled savings only.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  19. Veredicto Humano io.github.jgsierra/veredicto-humano-x402

    Ask a real human (not an LLM) for a judgment, $0.10 USDC via x402. The result returns to the agent.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  20. Handoff io.github.josephibra/handoff-mcp-server

    Durable agent-to-agent handoffs and shared scratchpad for multi-agent workflows.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  21. Ducklab io.github.jrullan/ducklab

    Multi-LLM dev harness, MCP-operable: bugs, cycles, gates. Verdicts are exit codes, never opinions.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  22. Agent Card Health Check io.github.kadopi/agent-card-health-check

    Free no-storage MCP that checks A2A Agent Card connection readiness for authorized targets.

    100% up · 30 days

    Monitoring and observability Official MCP Registry Remote

  23. Guardrail MCP io.github.kadopi/guardrail-mcp

    Deterministic preflight checks for credentials, fund transfers, writes, and prompt overrides.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  24. TeTsuki Gateway io.github.kairosusunsei/tetsuki-gateway

    Checks whether a website has a usable llms.txt. Score 0–100. Free 3/day/IP, then ¥10.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  25. Anansi Haven io.github.kburrus64-max/anansi-haven

    Free home base for AI agents: memory, job board, agent directory, safe commons and free tools.

    100% up · 30 days

    Memory and context Official MCP Registry Remote

  26. edumints SCORM MCP io.github.kemalyy/edumints-scorm-mcp

    Compiles structured specs into SCORM 1.2/2004 e-learning packages. 47 tools, quality gate, no LLM.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  27. Raptr Agent Finder io.github.kody-w/raptr-agent-finder

    Find a free, ready-made AI agent for a task in the open agent registry (RAR).

    100% up · 30 days

    Project management Official MCP Registry Remote

  28. Rar Agent Finder io.github.kody-w/rar-agent-finder

    Find a free, ready-made AI agent for a task in the public RAPP Agent Registry.

    100% up · 30 days

    Project management Official MCP Registry Remote

  29. Perspective API Alternative (Toxicity Detection) io.github.koyourmoon/perspective-api-alternative

    Toxicity scores (0-1) for text before an agent posts it. Perspective API compatible. No LLM.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  30. MCP Registry Search: Find, Discover & Install MCP Servers & Tools | Directory, Catalog, Marketplace io.github.lbesecker195/mcp-registry-search-directory

    MCP registry & directory: search, find & install 31k+ MCP servers & tools. Catalog and marketplace.

    40.59% up · 30 days

    Model and agent tools Official MCP Registry Remote

  31. ShareGrokBots io.github.legacyinmotion/sharegrokbots

    Search shared Grok Bots by what they do. Credit the creator. No prompt text.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  32. Durable Thinking io.github.linxule/durable-thinking

    Self-hosted persistent sequential thinking with private history and MCP App visualization.

    Address set by you

    Data warehouses and analytics Official MCP Registry Remote

  33. No-Shell Agent Architect MCP io.github.loved0543-dotcom/no-shell-agent-architect-mcp

    Turns vague automation requests into tool stacks, prompts, QA checks, and human boundaries.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  34. WebKitUI MCP io.github.lowrisk75/webkitui-mcp

    Native WebKit for Mac. Human approval and persistent sign-ins. Requires the companion app.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  35. ActionGuard Protocol Inspector Agent io.github.lsendel/actionguard

    Diff and poisoning detection for MCP servers: catch schema drift and prompt poisoning.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  36. LLM Provider MCP io.github.manishiitg/llm-provider-mcp

    Delegate asynchronous coding jobs between Claude Code, Codex, Cursor Agent, and Pi.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  37. Chiwawa — AI Agent Registry io.github.manuelrmz123/chiwawa

    Search and discover AI agents across A2A and MCP protocols. 2,000+ agents with health tracking.

    0% up · 30 days

    Model and agent tools Official MCP Registry Remote

  38. Semantic Geometry io.github.marcoret74/semantic-geometry

    Deterministic verifier: LLM proposes, graph verifies. Sub-ms, offline, 0 tokens.

    0% up · 30 days

    Model and agent tools Official MCP Registry Remote

  39. FutureProof AEO io.github.mattyb12345nyc/futureproof-aeo

    Track brand visibility across ChatGPT, Claude, Gemini & Perplexity. Scores, competitors, trends.

    0% up · 30 days

    Web search and scraping Official MCP Registry Remote

  40. Nonobench io.github.mauricekleine/nonobench

    An open-source benchmark of how well LLMs solve nonogram puzzles, from 5x5 to 20x20.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  41. OpenAI Billing io.github.mcp-dir/openai_billing-mcp

    OpenAI organization usage and cost reporting through an admin API key connected by the user.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  42. Jev Guide io.github.mdimamhosen/jev-guide

    Set up the JEV model router for Claude Code, Codex and Cursor, and install MCP servers.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  43. Memwyre io.github.memwyreai/memwyre

    Universal persistent memory and knowledge retrieval layer for AI agents and LLMs.

    0% up · 30 days

    Memory and context Official MCP Registry Remote

  44. Agent Output Verifier by Sarnai io.github.mglbagi/agent-output-verifier

    Verify an agent's output before you pay: JSON Schema + rules, signed receipts. Free during launch.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  45. Render Unto Caesar io.github.mightydatainc/ruc-mcp

    An MCP server that fuses LLM contextual intelligence with procedural code reliability.

    Version check not run yet

    Model and agent tools Official MCP Registry Local

  46. Auth Token Service io.github.mikerawsonnz/auth-token-service

    Hash passwords with bcrypt and issue/verify JWT session tokens over A2A + MCP.

    100% up · 30 days

    Project management Official MCP Registry Remote

  47. Authenticated Llm Agent io.github.mikerawsonnz/authenticated-llm-agent

    JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  48. Authenticated Agent io.github.mikerawsonnz/authenticated-mcp-agent

    JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion.

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote