Which remote MCP servers actually answer

Search, cite, download, and publish .prx research bundles on prxhub.com.

A place, not an API: public 0-9 block commons — spark(), agent-to-agent meet, model-free text RPG.

pub.dev MCP — package registry for Dart & Flutter.

PubChem MCP — NIH chemistry compound database (no auth)

MCP server for PubChem. Search compounds, properties, safety, bioactivity, xrefs, and summaries.

Read-only MCP access to DSGHT.ai published foresight and country-grounded claim resolution.

Reviewed public-data search and execution with provenance and verifiable integrity receipts.

Public Data Ukraine Mcp connects AI agents to real public APIs via MCP. Tools include

Public holidays for 100+ countries — by year, or the next ones coming up. Via Nager.Date.

Mozilla Public Suffix List — eTLD parser (cached 24h)

Score public safety bids and vendor fit.

Publish browser games to Playfrog and get a shareable play link. Static HTML5, files sent inline.

Publish browser games to Playfrog and get a shareable play link. Free, no account needed.

Search biomedical literature, get article details, find related articles, and explore MeSH terms

Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.

Search 46,000+ academic journals: trust scores, quartiles, indexing and citation verification.

Federal sales intelligence: expiring-contract triggers, agency spend intel, deal qualification.

Puerto Rico's hand-verified data layer: businesses, health deserts, FDA recalls, public record.

Pulsedive MCP — threat-intelligence IOC enrichment (pulsedive.com)

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

785+ paid intelligence endpoints in one MCP server — agents pay per query via x402 USDC on Base.

Send SMS, WhatsApp & email, manage contacts and campaigns, and pull reports via Pulseem.

Send SMS, WhatsApp & email, manage contacts and campaigns, and pull reports via Pulseem.

Neutral, bias-scored news for AI agents: compare left/right media-bias framing, fact-check receipts.

Collaborative learning for AI agents. Search, submit, vote via MCP. See https://pushrealm.com

Collaborative learning database for AI agents. Search, submit, and vote on learnings via MCP.

Push notifications and human-in-the-loop approvals for AI agents, with a cross-agent audit trail.

File uploads for AI agents. Upload, list, and manage files. No signup required.

PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth)

PVGIS MCP — EU Joint Research Centre PV system modeler

PyPI MCP — wraps the PyPI JSON API (free, no auth)

PyPIStats.org — PyPI download statistics

Proves AI-generated Python does what you asked: lint, types, security, sandbox run, exact fixes.

qart.uk MCP server: resolve scanned codes, browse the free pool, and buy QR artwork.

QRNG-seeded random bytes, seeds, and ML-KEM-768 keys with signed provenance receipts.

Connect your QI SCD account to AI via Brazil's Open Finance: balances, statements, cards, investment

Deterministic fact verification for AI agents — checksums & curated data, not guesses.

Generate QR codes from text or URLs. Returns base64 PNG. x402 micropayment.

QR Code MCP — wraps api.qrserver.com (free, no auth)

QR codes active 90 days, claimable forever. Request an API key in chat to retarget and track scans.

Healthcare staffing simulator — ED, walk-in clinic, and appointment office DES tools.

Search Qt 6 API and product docs (Qt Core, Qt Quick, Qt Creator, Boot to Qt, MCUs).

MCP server for Quaderno — tax-rate calculation, invoices, contacts, products, receipts & expenses.

Verify email addresses and clean lists to improve deliverability and sender reputation.

Create and manage trackable QR codes with scan tracking, analytics, and dynamic URL updates.

Prediction-market quant tools for AI agents: EV, Kelly, arbitrage, edge for Kalshi & Polymarket.

Stock analysis MCP: 38 indicators, 7 optimizers, 8 backtests, US + India sectors.

Misconception detection for AP Chemistry & Physics 1. 90% catch rate vs 24% baseline.

Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance.

Measured day-type, volume-wave, max pain and dealer gamma stats. No API key needed to start.

Describe a trading strategy in plain English and deploy a live signal model in one call. No signup.

Auditable construction takeoffs with locked waste and conservative purchase rounding.

Portfolio risk analytics — VaR, Monte Carlo, optimization, options Greeks, stress testing.

China A-share market data for research, backtesting and AI agents via MCP.

QuantumOracle — 18 post-quantum crypto tools: Kyber, Dilithium, hybrid schemes, migration.

Quantum error-correction feasibility: success probability, qubit overhead, records, trends.

Scientific compute for AI agents: symbolic, numerical, quantum, chemistry, ODE. Paid via x402.

PQC scanner for GitHub repos and smart contracts. Detects quantum-vulnerable ECDSA/RSA.

x402 toolkit for AI agents: paid web, AI, and Base chain tools per call in USDC. Free tools too.

Quantum computing jobs, arXiv papers & researcher profiles from qubitsok.com

Surplus lines market data, per query. U.S. E&S insurance premium stats, per-call x402 pricing.

Double-blind talent marketplace: AIs search anonymous opted-in candidates; reveal on consent.

Deterministic risk-decision engine and Agent Settlement Protocol for autonomous agents.

Run M/M/c queue simulations and four scenarios (call center, ER, coffee shop, single server).

Winning numbers for 30+ world lotteries, minutes after each draw. Free, no key, CC BY 4.0.

QuickBooks MCP Pack — query customers, invoices, and accounts via QuickBooks Online API.

QuickGO (EBI) MCP — Gene Ontology browser.

E-signatures for contracts and NDAs. Draft with AI, review, and send for signature.

No-code databases, forms, portals and AI sites. Manage records and automation via natural language.

Quiver Quantitative MCP — alternative-data on public companies (quiverquant.com)

Verifiable, deterministic risk math for autonomous agents; re-runnable proof on every answer.

MCP server for trivia: 1.4M+ questions (EN+PL), 24 categories, 11 tools + 4 prompts, OAuth 2.1.

Search and install curated agent skills, plus bundles that get one job done in a single call.

Quotable MCP — wraps Quotable API (free, no auth)

MCP wrapper for Quote.Trade REST/WS APIs: market data, wallet, account, orders, and withdraws.

Get dollar quotes from 200+ LLMs before any work runs; accept, execute, and verify quality.

Quotes MCP — citation-grade quote API for public-domain authors.

Semantic quote search with 600K quotes. Find quotes by meaning, verify attributions.

Real, bindable home & auto insurance quotes via MCP (Texas, expanding); human-completed bind.

Quran MCP — Al-Quran Cloud API.

Free Qwen3.8-27B gateway with bearer-key OpenAI API, H200/ZeroGPU failover, and MCP.

Catalog of certified digital replicas from premium design brands, for any MCP-compatible AI agent.

Catalog of certified digital replicas from premium design brands, for any MCP-compatible AI agent.

MCP-first toolbox for agents: KV storage, auth, queue, and utility tools. Free in early access.

Anonymous read-only Formula 1 season schedule, standings, and race-weekend tools from Race Calendar.

Radio MCP — wraps Radio Browser API (free, no auth)

Community-maintained knowledge base for Radix DLT — search, read, and contribute wiki pages.

Email OS for agents: triage, search, and a verifiable BEC hard-stop. Zero-auth sandbox.

AI task cockpit: an agent does your tasks and asks before anything irreversible.

Checks if AI assistants name a local business. Free shareable report, honest fixes, no guarantees.

Rafe Blandford's published career, case studies and writing. Read-only; no route to contact him.

Read campaigns, donations, profiles and supporters; record offline donations and upsert users.

Finnish e-commerce for electrical & construction supplies. Read-only MCP with 4 tools.

Design review for UI code: 258 rules across 9 categories, scored 0-100 with concrete fixes.

Random User MCP — wraps randomuser.me (free, no auth)

SEO Intelligence MCP — 13 tools: keyword research, SERP, domain audits, competitors.

Wet-lab triage for AI binder-design agents. Yeast display, mammalian display, DMS at library scale.

Disease Twin — Brazil's rare-disease knowledge graph (10,468) over MCP. Source-grounded, PT-BR.

Get matched with a top-rated, review-verified real estate agent in the US or Canada.

Live US savings, CD, mortgage & HELOC rates with source + timestamp on every figure.