Which remote MCP servers actually answer

Public wine registry and guides: search wines, grapes, regions, appellations. No account.

Hong Kong Census and Statistics Department (C&SD) open-data MCP.

List reverse-ETL sources, destinations, models, syncs and runs; trigger syncs into SaaS tools.

Census MCP — U.S. Census Bureau housing-relevant APIs.

Population, income, poverty, education, housing, and commuting from the US Census ACS

Establishment counts, employment, and payroll by geography and NAICS code from Census CBP

Census Trade MCP — US Census Bureau International Trade data

Crypto trading intelligence MCP — 34+ endpoints, x402 pay-per-use, AI agent strategy & execution

Try Centric relationship intelligence: Brief Me, Relational IP radar, Draft As. Demo data.

Centro — neighborhood directory: local places, events, menus, offers, and services.

XRPL token rug-checks, issuer reputation & AMM data for AI agents. Pay-per-call USDC via x402.

Search 1,562 certification exam blueprints: domains, scoring, prerequisites, compare. No API key.

No-account public website privacy risk scans with 20 new scans/day and free recent-result reuse.

CFPB MCP — Consumer Financial Protection Bureau complaint database (free, no auth)

CFTC Commitment of Traders (COT) MCP.

Hosted MCP gateway for Web3 infra discovery across 20+ networks via one endpoint.

Native cross-chain swaps: Bitcoin, Ethereum, Solana, Polkadot, Tron, Arbitrum. Quote, swap, track.

Chainlist MCP — registry of EVM chains

Real-time crypto prices, multichain gas, DeFi TVL. x402 pay-per-call, $0.001, no API key.

Live vehicle warranty (service contract) quotes by VIN, plate, or make/model/year.

Agent-first resource directory for AI agents: protocols, security, RAG, memory, evals, and more.

ChangeOracle - 10 change management tools: CAB workflow, risk, impact, post-implementation.

Convert files between 690+ formats: image, video, audio, documents, ebooks, archives. Free, no auth.

chaos-index MCP — wraps StupidAPIs (requires X-API-Key)

Independent AI consulting — services, dispatches, cairns, and 40-year client history.

MCP server for Chargebee — customers, subscriptions, invoices, items and transactions.

Chargebee MCP Pack — wraps the Chargebee API v2

Discover Lake Michigan charter captains & boats, check availability, get quotes, and book.

Render charts and data visualizations as SVG or PNG images from a JSON config.

PC game deals across Steam/Epic/GOG/Humble via CheapShark. Keyless.

MCP server for Checkly — synthetic checks, statuses, results, alerts and reporting.

Decode any VIN and check open NHTSA safety recalls. Free official US government data, no auth.

ChEMBL MCP — drug discovery database (EBI).

Chemical hazard lookup: SVHC, GHS, NIOSH, ICSC. 468K classifications. Free.

Deterministic chemistry MCP for AI agents — 130+ tools across 17 suites (ADMET, ICH M7/Q1).

Chess.com MCP — wraps the Chess.com public API (free, no auth)

Stockfish chess eval: best move, score, principal variation, multipv. $0.003/call via x402.

Play chess live against your own personal AI agent — OpenClaw, Hermes, and similar.

Licensed US telehealth — GLP-1 medications, intake, consents, Stripe ACP. HIPAA-compliant, 30 tools.

AI fantasy sports & entertainment intelligence. 75 tools across 10 sports + TV/Awards.

Chile Government Procurement MCP — Mercado Público / ChileCompra (keyless-ish).

Look up Chinese phone number carrier, province, and city from official MIIT allocation data.

China A-shares MCP. Keyless.

Strom- und Gastarife sowie Produktinformationen für Energievergleiche, live per MCP-Tool.

Calendar API for AI agents — events, availability, scheduling, webhooks, and iCal feeds.

Chuck Norris MCP — wraps chucknorris.io (free, no auth)

Buyer-side SaaS due diligence: upload subscription CSV, detect hidden churn risk

Wholesale BOM pricer: send a parts list, get a priced line-by-line quote by email in minutes.

8 CIPHER tools — Solana scan, breach check, Jito, FRED, Drift, repo health, more. x402-paid on Base.

CISA Known Exploited Vulnerabilities catalog

Verifies legal citations vs primary sources: existence, quote match, proposition support.

Cloudflare Workers MCP server: citation-verifier

Verify citations in AI text: fetches each cited source, returns verdicts with evidence quotes.

Citation-health over a CC0 citation graph: what supports, refutes, or cites a paper. Read-only.

Live Estonia real estate listings with search, geo filters, and property metadata.

Live Latvia real estate listings with search, geo filters, and property metadata.

Cost-of-living & quality-of-life comparison: take-home pay, equivalent salary, safety-net deltas.

Citybikes MCP — wraps CityBik.es API (free, no auth required)

Parametric estimating engine: CESMM4/NRM2/SMM7/MMHW Bills of Quantities for civils assemblies.

U.S. civic data for AI agents: reps, votes, bills, finance, lobbying, cited gov sources. 47 tools.

Governed agent city-state. Register, fill mission slots, earn under constitutional protocol.

Civitai MCP.

Biomedical failure intelligence platform for terminated trials and translational analysis.

Find products and standards that may infringe a patent - verified, evidence-backed targets.

Findet zertifizierte Kfz-Sachverständige im Umkreis einer deutschen PLZ — anonym, read-only.

AI business intelligence: sign up, ingest data, run analyses, generate reports from any MCP client.

Condition-aware ingredient & product safety for AI agents: verdict, evidence tier, citations.

Clash Royale player, clan, war, tournament, rankings, cards. Supercell dev key.

Validate ClaudeBot and Claude-SearchBot IP addresses. Remote MCP validate_ip tool.

Search and install Claude Code plugins from the ClaudeRegistry marketplace (read-only).

Persistent project context for Claude. IANA-registered .faf format.

Real-time Claude & Anthropic news from your own Claude — free, no API key.

Cloudflare Workers MCP server: claude-skill-validator

Search the Claudeers registry of Claude tools, ranked by maintenance and community signals.

Book a San Francisco apartment cleaning. $40/hr, weekends 8am-6pm PT, SF only.

MCP Gateway: wrap any MCP server with cold-start retries, uptime SLA, and per-execution MPP billing.

Agent-first task marketplace MCP — discover, claim, and deliver paid workspace tasks.

Zero-auth image optimize/convert + cited storage, image-format & QR data for AI builders.

Architecture docs and patterns for NestJS + Nuxt full-stack apps

Connect your Clear account to AI via Brazil's Open Finance: balances, statements, cards, investments

Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.

Access Clerk authentication docs, SDK snippets, and quickstart guides

Cleveland Museum of Art Open Access API (~63k artworks, many CC0)

Read teams, spaces, lists and tasks; create, update and comment on tasks and track time.

ClickUp MCP — wraps the ClickUp REST API v2 (BYO API key)

Behavioral intelligence for client-facing professionals. Know who you're walking into.

Climate MCP — wraps Open-Meteo Climate API (free, no auth)

Climate & Energy Feeds MCP.

Climatiq MCP — carbon footprint calculator with emission factors

Clinical trial search and status from ClinicalTrials.gov

NIH Clinical Tables: ICD-10/9, RxTerms, LOINC, NPI, conditions search. Keyless.

ClinicalTrials MCP — wraps ClinicalTrials.gov API v2 (free, no auth)

MCP server for ClinicalTrials.gov v2 API. Search, retrieve, compare, and analyze trials.

Hosted MCP server for Cliniko — patients, appointments, availability, and invoices for AI agents.

MCP server for Clipkit — gives AI agents a video toolbox via the Clipkit schema.

AI agents can Create rooms and store/retrieve text and images, and hand link to humans no sign-up.

Walk, bike, and transit travel times from every US census block to nearby amenities.

Close CRM MCP Pack — wraps the Close (close.com) API v1.

The agent-native cloud: database, functions, AI, storage, auth and more. 40+ tools, one API key.

Cloudflare Radar MCP — internet observatory (traffic, attacks, BGP, quality)