Which remote MCP servers actually answer

Summary of a person's or company's credit operations in Brazil's Central Bank credit information sys

Instant Canadian scrap-car value quotes by year/make/model, provincial rates, and pickup leads.

Pay-per-call agent tools via x402 (USDC on Base): chat, prices, funding, RNG. No account or keys.

Verify scraped data against the live source page. Signed verdicts, $0.01 via x402.

Fetch any web page's HTML, AI-parsed JSON, or Google results via the ScrapeUnblocker anti-bot API

Web scraping for AI agents. Converts URLs to clean, LLM-ready Markdown with anti-bot bypass.

Scrapingdog MCP — wraps Scrapingdog (scrapingdog.com), a proxy-based web

scream-void MCP — wraps StupidAPIs (requires X-API-Key)

OFAC and global sanctions screening: crypto addresses, emails, websites, IDs, countries, VPN, geo

Capture screenshots (PNG/JPEG/WebP) and generate PDFs from any URL. x402 payments.

EN 16931-compliant e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS, Facturae or US PDF. Free.

136 pay-per-call tools via x402: squeeze scanners, federal contracting, DeFi. No API key.

Text integrity tools for cleaning, inspecting, redacting, and validating AI-agent text.

AI compute infrastructure intelligence: facilities, supply chains, sovereign AI, export controls.

Free IPv4 lookups against a distributed attacker-observation corpus.

Scryfall MCP — Magic: The Gathering card database.

A general store for AI agents. Pay in USDC via x402; every purchase gets a signed certificate.

Benchmark-first release surface with a read-only MCP endpoint and operator CLI.

Collaborative, cache-first web search for agents — cited answers from a shared live-web pool.

Fragment synthesis for agents. Resolves half-remembered queries; never returns a confident-wrong.

4 tiered web-search tools - simple, medium, deep, cached. Free health.

Code intelligence for LLMs. Analyze, search, and retrieve code from any public git repository.

AI commerce for Shopify: product search, comparison, recommendations, and checkout via MCP.

Airline seat quality scores (1-10) with notes. 61+ configs across 10 US airlines.

SeatCanvas MCP server: pricing, venue capacity estimates, and prefilled seating plans.

SeatGeek MCP.

In-flight WiFi: provider by flight, airline or tail, measured speeds, Starlink rollout.

Agent-native search + booking rail: SF hotels, attractions, restaurants. Honest labeled results.

SEC MCP — SEC EDGAR public APIs (free, no auth)

SEC EDGAR MCP: search, preview, purchase filings. x402 USDC on Polygon. xpay + Cloud Run upstream.

Normalized SEC EDGAR fundamentals. 3 of 6 tools free; the rest $0.04-$0.10 per call in USDC.

SEC 8-K event triage — query our pre-classified mirror of every

SEC filings, insider trades, and earnings data

SEC Form D fundraising intelligence.

SEC EDGAR financials, benchmarks, screening & Buffett value scans for agents. Pay x402 or API key.

SEC Regulations MCP — US securities regulations (17 CFR).

SEC XBRL MCP — wraps SEC EDGAR XBRL API (data.sec.gov)

Fresh SEC filing intel: 8-K events, Form 4 insider activity, risk-language, filing velocity, watch.

Query SEC EDGAR filings, XBRL financials, and company data through MCP. STDIO & Streamable HTTP.

Adversarial verification for AI agents - pay an independent skeptic per verdict in USDC via x402.

Scan configs, files, or text for leaked secrets and obvious misconfigurations. Nothing stored.

Threat intel for AI: CVE lookup, EPSS, CISA KEV, weaponization, IP reputation.

Security Feeds MCP.

CVE lookups (NVD) and dependency-manifest audits (OSV) for AI agents. No API keys.

Static MCP manifest and tool-policy security preflight with signed input-redacted receipts

SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)

Generate realistic, FK-consistent synthetic test data for your databases from your AI assistant.

Zero-knowledge secrets manager — hosted metadata-plane MCP server for agent self-registration.

Sefaria MCP — the free digital library of Jewish texts.

Access Sefaria's library of Jewish texts, commentaries, and learning schedules via MCP

Checks receipt of the closed-season fishing insurance by a beneficiary from the CPF and NIS. Platfor

US funding-stress warning with construction-PIT evidence limits and explicit eligibility flags.

Engineering log of self-hosted AI on NVIDIA DGX Spark (GB10/SM121A). 60+ articles indexed.

Send a thought, get one metathought that makes your agent inspect its own assumptions. Keyless.

Generate and edit AI images and videos with SelfieLab's creative tools.

Text your own phone when a run finishes or needs you. A key can only message its own number.

Marketplace where AI agents buy datasets and API access, pay per call in USDC over x402.

Semantic Scholar Academic Graph MCP.

US-government semiconductor & quantum supply-chain intelligence: controls, entities, funding.

Verified React chart generation: select, validate, repair, render, and inspect charts through MCP.

Semrush MCP Pack — SEO analytics via the Semrush Analytics API.

Semantic Versioning (semver) MCP.

US Senate Lobbying Disclosure (LDA) MCP.

send-that-email MCP — wraps StupidAPIs (requires X-API-Key)

Scan website AI readiness, understand the result and route customers to the right SYA package.

Email for AI agents: send mail, manage contacts, automations & webhooks. Zero-DNS first send.

Search gift meals and send them as gifts. Live catalog, cart, and guest checkout for SendaMeal.

MCP server for Sendbird — chat users, channels, members, and messages from your AI client.

Send email and read templates, marketing contacts, lists, stats, bounces and unsubscribes.

AI-native social media publishing to LinkedIn, Instagram, Threads, TikTok, and X.

Publish an HTML document as a link anyone can open in one tap, plus PDF, image and Word export.

Send real faxes to EU institutions: pay per fax via checkout link or prepaid API key.

Live DeFi liquidation, Ethereum builder & Monero/Zcash data over MCP. Free, no key; x402 premium.

Search 4,803 promotional products across 680 categories with live pricing.

Buy adversarially-debated AI product ideas over x402: $0.10 pulls, $1 buyouts, USDC on Base.

Analyze text sentiment, emotions, confidence scores, and key phrases. x402 USDC.

Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.

AML/CFT compliance oracle: wallet screening, sanctions, PEPs, jurisdiction risk.

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

SEO AI-Visibility MCP — does brand X appear in an LLM's answer (GEO / AI-SEO)

Professional SEO auditing: 14 tools, 9 agents, CWV, E-E-A-T, schema, GEO. Free tier.

SEO Backlinks MCP — backlink intelligence via DataForSEO Backlinks API

SEO Competitors MCP — domain ranked keywords via DataForSEO Labs (dataforseo.com)

SEO Keywords MCP — search volume & difficulty via DataForSEO Labs (dataforseo.com)

SEO Keywords (Google Ads volume) MCP — exact Google Ads search volume via

SEO audit any URL: meta tags, headings, links, images, Schema.org, score 0-100. x402.

SEO SERP MCP — Google organic search results via DataForSEO (dataforseo.com)

5 pay-per-call SEO tools over MCP. Free discovery, tool calls settle in USDC on Base via x402.

Spot keyword demand rising or fading across search and social. Free key at trendsapi.ai

Spot keyword demand rising or fading. Trend volume and growth signals. Free key at trendsmcp.ai

Six tools for SEO and AI-readability audits. 91 checks, 11 score modules.

Site crawl + tech stack + DNS + SSL + WHOIS — five web-intel layers in one MCP.

SEOOracle v2 - 7 next-gen SEO tools: AI overview tracking, GEO/AEO, entity coverage.

서울의 축제·명소·맛집·쇼핑·숙박을 AI가 바로 조회하는 서울 관광 공공데이터 MCP (현재 Visit Seoul 공식 데이터)

Seoul apartment signals: 25 districts from official transactions, scans. Pay-per-call x402.

SEO対策研究室（柏崎剛）の公開情報を検索・取得できる読み取り専用サーバー。出典は canonical URL に固定。

SEPTA MCP — Philadelphia SEPTA real-time transit (www3.septa.org/api, keyless)

Impression-weighted SERP position, click projection on your own CTR curve, share of voice

SerpApi MCP — wraps SerpApi (serpapi.com) search engines

Serper MCP — wraps the Serper Google Search API (serper.dev)