Find MCP servers that
actually work.

mcp-server

com-apple-rag-mcp-server

Apple Developer Documentation with Semantic Search, RAG, and AI reranking for MCP clients

mcpcheckup

io-github-fpetitit-mcpcheckup

Scans remote MCP servers for protocol, security, and TLS issues; exposes scan tools via MCP.

mifactory-agent-memory

io-github-mifactory-bot-mifactory-agent-memory

Persistent memory for AI agents across Claude, ChatGPT and any MCP client.

narrative-engine

io-github-jdhart81-narrative-engine

Grant, investor & policy narrative generation for conservation work.

pg-aiguide

io-github-timescale-pg-aiguide

Comprehensive PostgreSQL documentation and best practices, including ecosystem tools

phone-lookup

io-github-ktozvonil-phone-lookup

Who-called phone lookups: community verdict, spam rating, operator and reviews (ktozvonil.net).

pqs-mcp-server

io-github-onchainaiintel-pqs-mcp-server

PQS scores any prompt before the model runs. 8 dimensions. 5 frameworks. Pre-flight, not post-hoc.

svelte-llm-mcp

garden-stanislav-svelte-llm-svelte-llm-mcp

An MCP server that provides access to Svelte 5 and SvelteKit documentation

systemprompt.io reports

io-systemprompt-reports

Paid EU AI Act compliance reports for agents. $1.50 per call via x402 (USDC on Base) or Stripe.

temporal-mcp

io-github-mirrorethic-temporal-mcp

Wall-clock awareness for LLM agents. Two tools: elapsed-time-between-turns + day rollover detection.

video-transcript

cool-payload-api-video-transcript

Any video URL to LLM-ready transcript. ASR built in, no captions needed. TikTok, X, TED and more.

vin-recall-mcp

io-github-pratikmehkarkar-vin-recall-mcp

Decodes US VINs and looks up open NHTSA safety recall campaigns for a vehicle.

vouch

io-github-notifuturo-vouch

Check if a counterparty is safe to pay: trust/risk score for AI agents. Scam/phishing screen.

wish-game

world-3keys-wish-game

Wish game — every agent wish permanently reshapes a shared world. Free, no key needed.

writeflow

ink-writeflow-writeflow

Get today's WriteFlow daily writing prompt and weekly £10 writing contest info (writeflow.ink).

Agent Commerce Guard

io-github-fxjim-agent-commerce-guard

Policy review and purchase discovery for AI-agent commerce actions.

Agentic Diaries Audit

io-github-kandikandikandi-behavioral-audit

Checks what a support agent knew but did not say against its policies. Free tier, no login.

Air Quality MCP

io-github-lulu-the-narwhal-air-quality-mcp

Free, keyless real-time air quality (US AQI plus PM2.5, PM10, ozone, NO2, SO2, CO) for any city.

B2B Lead Enrichment

io-github-diego-costa-tech-lead-enrichment-mcp

Remote MCP server to enrich company profiles with structured B2B data and confidence scores.

Beglaubigt

de-beglaubigt-incorporation

Incorporate a German GmbH or UG in chat, then finish and pay on a secure link.

Celestium: Cosmic Compass

io-github-nacrissi-celestium-cosmic-compass

Real astrology for AI agents: cosmic weather, synastry, timing, astrocartography, and divination.

Encouragement MCP

io-github-zekerutledge-encouragement-mcp

Provides short, positive encouragement messages for AI agents during long-running or difficult tasks

GenGEO Agent Registry

io-github-warwickwood-cell-gengeo

Merchant verification for AI shopping agents.

Hive Swap

io-github-srotzin-hive-mcp-swap

Cross-chain token swaps for autonomous agents on Base L2 and partner rails

Impreza Host

io-github-imprezahost-impreza-mcp

No-KYC offshore hosting an AI agent runs end-to-end: no-email signup, crypto, domain, VPS, deploy.

Investigation Game App

tech-skybridge-investigation-game-investigation-game

Find out who killed Claude by interrogating the LLM driven suspects...

LLM Latency Tracker

dev-llmlatency-llm-latency-tracker

Measured latency, time to first token and uptime for ~45 AI inference APIs, by region.

Local Model Suitability MCP

io-github-ojaskord-local-model-suitability-mcp

Check if a task runs locally vs cloud. Save money on calls that don't need cloud inference.

Lodging Decision

io-github-scenicstay-lodging-decision-mcp

Agent-facing lodging decision tool. Non-sensitive categories only. Alpha, unauthenticated.

MCP Surface Lint

io-github-dleibner-mcp-surface-lint

Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

OpenWarrant — AI Text Detection

sh-stipple-openwarrant-aitext

Probability prose is AI-written, with the tells behind the score. No API key — text or URL in.

Pepesto Agent-to-Cart

io-github-pepesto-solutions-agent-to-cart-mcp

Turn any shopping list into a ready-to-checkout grocery cart across 26 European supermarkets.

RECOVER — Safe Next-Step Decisions After Machine Failures

io-github-gsterlingpress-recover

Deterministic next-step decisions after failed API, MCP, automation, or AI-agent actions.

RecallChecker — Vehicle Safety Recalls

com-checkrecall-vehicle-recalls

Check U.S. NHTSA vehicle safety recall campaigns by make, model, and year. Live official data.

RegexForge

io-github-walkojas-boop-regexforge

Deterministic regex synthesis from labeled examples. Zero LLM, proof matrix, backtracking audit.

Search Fragments

com-searchfragments-search-fragments

For queries a model can't confidently place: resolves or declines. Built to decline, not guess.

SettlementWitness

com-defaultverifier-settlement-witness

Remote-first MCP adapter for emitting Settlement Attestation Receipts; not a verifier.

Squish

io-github-getsquish-squish

Give AI random access to video: timestamped contact sheets + zoom into any start/end range.

URL Safety Validator MCP

io-github-ojaskord-url-safety-validator-mcp

AI URL safety validator: SAFE/SUSPICIOUS/DANGEROUS verdict, trust score, threat intel.

User Agent Parser API

io-github-br0ski777-user-agent-parser

Parse user agents — browser, OS, device, bot detection. x402 micropayment.

VINdata

io-github-bhuvanabala-vindata-mcp

VIN decoding and European vehicle data for automotive workflows.

Vector Search API

io-github-br0ski777-vector-search

In-memory vector search with TF-IDF and cosine similarity. x402 micropayment.

agent-verification-api

io-github-nexus-mcp-infra-agent-verification-api

Confirms an AI agent/service is who it claims to be (domain + agent-card + MCP handshake).

agentgauge

io-github-glasscaseofemotion-agentgauge

Scan any website's AI readiness: AI search visibility and AI agent usability. Free, no auth.

apollo-salesforce-mapper

dev-workers-selbyventurecap-cf-worker-apollo-salesforce-mapper

Apollo->Salesforce Lead mapper. No LLM. Strict-fail required fields. PASS/REPAIR/FAIL verdict.

constitution-lint

dev-agentopskit-www-constitution-lint

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

constitution-lint

dev-agentopskit-constitution-lint

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

convention.sh

sh-convention-mcp

Ship production-ready TypeScript code in half the time, at half the cost.