MCP Servers
Model Context Protocol servers that give AI agents access to tools and data — sourced from the official MCP registry and ranked by GitHub stars.
15 YouTube endpoints. Pay per call in USDC via x402.
111 web-data endpoints across 11 services. Pay per call in USDC via x402.
Discover and call 2,000+ x402 machine-payable services through one graded API key + gateway.
Quant intelligence over MCP: backtest, signals, screens, scores & portfolios for US & TSX stocks.
Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results.
Document forensics: tamper/AI checks, extract, identity, PII, adverse media. No API key needed.
View repository →Probability prose is AI-written, with the tells behind the score. No API key — text or URL in.
View repository →Fact-check citations: resolve, match, support claims; math rechecked. No API key — URL in.
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Check any MCP server or agent skill before installing: upkeep, real adoption, and OSV advisories.
View repository →Persistent file storage for AI agents via MCP and curl. Upload, download, and version files.
Identity, secrets, and passwordless SSH provisioning for AI agents — Keycloak, vault, MCP tools.
View repository →The Others — an agentic t-shirt shop. Browse products and buy t-shirts via AI agents.
Buy and manage RU PBN and international iGaming SEO links with protected Tier1.shop checkout.
Score two AI outputs, get exact failure reasons, and issue a $0.25 USDC receipt via x402.
Create, test and play AI-native games through server-authoritative contracts.
Audit lead-delivery workflows, find reliability gaps, and generate a LeadProof integration plan.
20 free dev tools: JSON/YAML, XML/SQL, Cron, SEO, QR code, URL shortener, cron tasks, files
Build a hosted website by chatting. Snapshots, forms, analytics. Hand off the dashboard. Walk away.
Workflow planning, recovery checkpoints, coordination, fixtures, and compatibility tools for agents.
Render PDFs from 45 starter templates or raw HTML. Pay-per-render with USDC via x402.
View repository →Book a Ukrainian-speaking vertebrologist in Chernivtsi, Ukraine: find slots and book for the user.
Authored design service: one-of-one landing pages, pitch decks, and research-grounded briefs.
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1.25M+ Slovak companies, aggregated from 8 registers (RPO/ORSR/RÚZ/ZRSR/RPVS/CRZ/ÚVO/FS DPH).
View repository →AI battery search & first AI-agent booking for car battery replacement (EU/SK). By benben.sk.
Frontier-AI vendor commitments, safety framework history, corpus, and partnership patterns.
View repository →Cello MCP server to launch and manage your Referral and Partner program
Search real businesses, then read profiles, services and hours or contact them, in one endpoint.
Schedule posts, read your own analytics, and research viral content across seven platforms.
Official Fabric MCP server
Frontier-design reference: file formats, converters, definitions, sensors, companies, design jobs.