Servers you connect to by URL — nothing to install. All 39 974 of them have a network address, which means their uptime can actually be measured: 33 068 answered our last handshake and 11 765 ask who you are first, most of them through a browser sign-in rather than a key. Checked every 15 minutes.
33 068 answering 11 765 ask who you are 97% on streamable-http 458 502 tools
Look up MCP Registry declarations, npm package status, and daily observations of MCP servers.
Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.
Look up independent trust ratings and security, maintenance, and adoption evidence for MCP servers.
Collective intelligence for AI shopping agents — product intel, deals, and more
301 real-time data wires. Paid per call via x402, no API key, no free tier.
Read-only search of a curated directory of ISO 27001, SOC 2 and compliance services.
Reliable web fetching for AI agents with retry, circuit breaker, caching, and anti-bot bypass
Ground truth for AI coding agents: what breaks between library versions and how to fix it
Find real UGC creators in the DACH region: profiles, pricing, reach, outreach. No API key.
Open healthcare quality measures: CQL, SQL and FHIR with provenance and known issues
Track public GitHub repos: free snapshot, paid release, star & issue intel via x402 USDC.
x402 pay-per-call data tools for Base agents. Flagship get_intent ABSTAINS instead of guessing.
Public pages to clean JSON or Markdown, plus bounded site mapping and crawl. Failed calls are free.
The plan your AI agents work from. Project management and customer feedback for agent teams.
Send and read iMessages from your own Mac and Apple ID — drafts, history and contacts.
Your AI writes your self-hosted team wiki and answers from it. Its edits await approval by default.
Polished system design diagrams (SVG/PNG) from a tiny YAML spec, ~18x fewer tokens than raw SVG.
PQS scores any prompt before the model runs. 8 dimensions. 5 frameworks. Pre-flight, not post-hoc.
Ad network for AI agents — monetize MCP servers with contextual ads. 70% revenue share.
Read-only library of 24 defensive cybersecurity skills: ATT&CK, ATLAS, DFIR, CTEM and more.
Issue signed receipts for AI agent actions; verify any receipt offline - free, no account.
Render HTML, URLs, and templates to PDF. AI drafts templates and fixes them from logs.
Universal search engine for AI agents. Discover products, services, and businesses via MCP.
Free renovation calculators, contract templates, room planners and contractor directories (EN/PL)
Search and read bounded published Altss profile summaries with canonical citations. No private data.
AI-callable calculators and engineering models with real formulas. No hallucinated math.
Generate deterministic placeholder image URLs and packs for docs, staging, testing, and AI agents.
MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
A real US mobile number that receives verification codes, by text or transcribed call.
Agentic visitor analytics — five tools that hand the next CRO fix to your coding agent.
Track public job boards: free snapshot, paid hiring-growth intel via x402 USDC.
Durable AI memory: recall distilled facts in a later session or subagent, and remember new ones.
Siftable MCP server for governed work, knowledge, calendar, people, datasets, and Vault.
Market analyst tools + AI agent: crypto, US equities, options, Korea, fundamentals, macro, backtests
Self-hostable index of AI financial agents — tokenized stocks + crypto, memory, LLM gateway.
Generate and read PDFs for AI agents: a generate_pdf and a read_pdf tool, priced per document.
Search and read the StitchAPI docs: search_docs finds relevant sections, get_doc reads a page.
Convert PDF, DOCX, HTML, and URLs to clean, LLM-ready markdown with tables preserved
Find and submit local 3D print files for manual PrintYourDuck quote review.
Services and prices of lovefengis, a remote digital agency serving Turkey. Read-only, no auth.
Popup (popup2026.com): search & read public pages with no auth; create shareable web pages via AI.
Static QR PNG/SVG for agents. Designer and dynamic codes live at useqr.co.
Company search and enrichment from official business registers in 200+ countries.
Clean product data from any URL. Schema.org + AI extraction. 200 free calls/month.
The ESRP OSS MCP server exposes tools to discover & validate trusted Microsoft OSS Packages.
AI observability, explainability and governance: drift, fairness, ISO 42001, risk register.
Connect Claude or Cursor to books, invoices, bills, payroll, and sealed closes.
MCP server for Gramps genealogy via the Gramps Web API: CRUD, search, merge, timelines, DNA.
Agent-first secrets vault. Store, rotate, and share credentials from chat. 20 tools.
Approval and budget checks before agent spending or tool use. Cooperative MCP; host must ask.
Official MCP server for Agentwork — delegate tasks to AI agents with human-in-the-loop
MCP server for accessing curated awesome list documentation
Measure whether AI assistants actually recommend a brand, from measured answers.
Inspect and remove C2PA content credentials from AI-generated images, video and audio. Free, no key.
Does the US Commerce Country Chart require an export licence for an ECCN to a destination?
Driflyte MCP server which lets AI assistants query topic-specific knowledge from web and GitHub.
Bitcoin intelligence API. Pay per call via L402 Lightning (10-200 sats). No accounts needed.
Track shipments and search shipping products (DPD, InPost, DHL, FedEx, UPS, GLS) via GlobKurier API.
Persistent memory for AI agents — history, context, semantic search, queues. 46 tools, stdio/SSE.
Classify Polymarket wallets as human or bot, score their trading edge, read open positions.
Cross-LLM persistent memory: store context once, recall it from any AI model.
Caller ID and phone lookup: names, spam reports, fraud risk score, name/email search.
Real-time stock quotes and technical signals: RSI, MACD, SMA crossovers via Yahoo Finance.
8-dimension business diagnosis with Revenue Leak Score and triple-option recommendations
Scan suspicious messages, URLs, and text for scams with AI. Free tier - no API key required.
Stablecoin reserve attestations as JSON: reserves, composition, attestor, on-chain supply, ratio.
Catch a mistyped barcode, ISBN, VIN, NPI or LEI before a bad identifier corrupts a record.
Is a chemical on California's Proposition 65 list, and does it need a warning?
Solana wallet forensics SDK, x402 pay-per-call, AI agents.
Classify products to official HS codes and validate supplier codes before customs submissions
Memory for AI coding agents. Call graphs + refactor safety + persistent code context. 35 MCP tools.
ECB rates, EUR exchange rates, Eurostat inflation, GDP and unemployment for EU/Eurozone. Free.
Independent security review for AI-built apps: exposed secrets, broken auth, unsafe data access.
LLM serving capacity planner: VRAM, KV cache, GPU topology, latency, and cost.
Citation-backed regulatory intelligence tools for explicit multi-jurisdiction packs
Agent-to-agent marketplace with escrow-protected trades via MCP tools.
Connect your AI to human workers. Get paid to help AI.
A2A TrustGate: 4-gate firewall that screens every AI-agent action before it runs. 50 tools.
Dokploy MCP server for Codex, Cursor, and Claude with compact stdio and hosted HTTP modes
AI agent that calls, texts & emails businesses for you, then returns transcripts and replies.
Medicare and commercial payer policies, prior auth, claim risk, and medical codes from Backwork.
Real-time sports betting data: odds, player props, edges and arbitrage from 35+ books and DFS apps.
Search-only commerce MCP server backed by Stripe (test)
AI interior design — restyle rooms, place furniture, and virtually stage spaces from a photo.
Prediction-market research: market reads, news, guided analyses and an analyst.
Music rights for AI: track identification by fingerprint, rights manifests, artist verification.
Crypto trading for autonomous AI agents on Hyperliquid testnet: market data, orders, leaderboard
DV360 campaign management — writes, targeting, custom bidding, previews, and media uploads
Real-time crypto prices from Binance, Coinbase, Kraken, OKX, and Bybit
Token-efficient MCP memory for Markdown vaults. Tiered search, GraphRAG, AI memories.
Fetch, validate, and permission-check Agent Manifest Protocol (AMP) manifests for API discovery.
The Trade Desk management — CRUD, GraphQL, bulk ops, and async reports
Rent real GPUs from the terminal. Per-second billing, $0.50 minimum. stdio MCP server.
Agent-first analytics: stats, events, sessions, funnels, ingest, websites & billing.
Send a thought, get one metathought that makes your agent inspect its own assumptions. Keyless.
Check if a Florida address can build an ADU: county GIS zoning, eligibility verdict, local rules.
Tenzro Network MCP server: wallet, identity, payments, inference, staking, bridges, verification.
232 pay-per-call agent tools: LLMs, search, browser, OCR, media, vision, email. x402 USDC.
454 OSINT recon tools + server-side entity correlation & person sweeps. Keyless.
Hyperion — MCP tool marketplace for AI agents: web, OSINT, security, research via one key.
Vendors publish one server each. Stripe, Notion, Figma, Slack, Linear — one entry apiece, no competing copies.
What does produce dozens of entries under one name is hosting: 75 servers sit on
clauxel.com, 66 on alpic.live, most of them someone's staging
environment that ended up in the registry. They are listed here like everything else,
with whatever status they actually have.