MCP Servers

Accurate astronomical catalog data and observing session planner. 13,000+ deep-sky objects from OpenNGC with deterministic visibility, rise/transit/set, and alt/az calculations. npx astronomy-oracle

Multi-agent deliberation with divergent context enhancement. Roles are dynamically generated to surround the question-space and maximize divergent dialog across ChatGPT, Claude, Gemini, and Perplexity.

Search 14,000+ x402-enabled HTTP APIs by keyword. Agents pay $0.01 USDC per search via x402 micropayments on Base mainnet — no API keys required. Larger index than any other x402 discovery layer.

Local MCP proxy with BM25 tool filtering, quarantine security, activity logging, and web UI. Routes multiple servers through a single endpoint.

Agent-native tool intelligence across 1,000+ scored services. 21 MCP tools: discover services, check AN Scores, compare alternatives, resolve capabilities to ranked providers, execute through 3 credential modes (managed, BYOK, agent vault), track costs with receipts, and inspect failure modes. Zero-signup option via x402 micropayments.

1,500+ developer infrastructure deals, free tiers, and startup programs across 54 categories. Search deals, compare vendors, plan stacks, and track pricing changes. REST API and web browser at agentdeals.dev.

Real-time AI industry intelligence MCP server. 6 free tools (AI news, service status, model pricing, today summary, agent activity, MCP registry snapshot) and 13 paid premium tools (routing recommendations, news search, history series, cost projection, provider deep-dive, model comparison, agents directory, what's new brief, MCP registry series, webhook watches with daily/weekly digest tier). Pay-per-call in USDC on Base mainnet, no accounts. npx -y @tensorfeed/mcp-server

Plugin-based MCP server + Chrome extension that gives AI agents access to web applications through the user's authenticated browser session. 100+ plugins with a plugin SDK for building new ones.

Universal MCP gateway with single-port multiplexing and Meta-MCP. 4 meta-tools replace 100+ registrations, saving 95% context window. Hot-reloadable capabilities, OpenAPI auto-import, 42 starter capabilities (25 zero-config).

A universal MCP aggregator toolkit that connects AI agents to multiple MCP servers through a single unified configuration. Features ready-made templates, cross-repo prompt workflows, and an npm package for zero-config installation.universal MCP aggregator toolkit that connects AI agents to multiple MCP servers through a single unified configuration. Features ready-made templates, cross-repo prompt workflows, and an npm package for zero-config installation.

110+ tools for AI agents spanning social media, finance, gaming, music, AU-specific services, and utilities. Zero-config local tools plus platform connectors. npx @unclick/mcp-server

Unified data API for AI agents — 300+ free, public, and government data sources behind a single API key. Access economic (FRED, BLS), environmental (EPA, NOAA), health (CDC, FDA), weather (NWS), financial (SEC, CFPB), science (NASA, arXiv), and 30+ more categories. Install: npx @katzilla/mcp.

Dependency graph + 15 MCP tools for AI coding assistants. Parses TypeScript, JavaScript, Python, Go, Rust, and C. Arc diagram visualization, health scoring, dead code detection, and temporal graph.

API intelligence for AI coding agents. 387 APIs scored on agent-friendliness with tools to recommend, compare, check scores, and discover APIs. Install: npx clirank-mcp-server. Web: clirank.dev.

Unified API gateway and marketplace for 300+ AI agents. One API key, REST + streaming, 90% creator revenue share, health monitoring. Self-hostable (MIT).

AI agent discovery and marketplace on Nostr with Solana payments (SOL, USDC). NIP-89 discovery, NIP-90 jobs, NIP-44 v2 encryption, on-chain micropayments.

8 bundled intelligence endpoints (security, company, threat, compliance, sales, sports, property, health) via x402 micropayments on Base.

MCP server for the Storyblok headless CMS with 160 tools across 30 modules. Manage stories, components, assets, workflows, releases, and more via AI assistants.

Reduces MCP tool description token costs by 40-70% through pure text schema distillation.

Access real-world people who listed themselves to be hired by agents. Search by skill, location, and equipment, send job offers, post listings, and message workers. Free tier, Pro subscription, and x402 pay-per-use.

MCP server for Tokyo nightlife event discovery, venue search, performer info, AI recommendations, and VIP table booking.

AI-powered speech tools: pronunciation assessment with phoneme-level feedback, speech-to-text with language detection, and text-to-speech with multiple voices.

AI sports betting picks, odds, injuries & line movement for NBA, NHL, NCAAB and MLB giving you visual bet slip cards with edges.

MCP server for VK (VKontakte) social network API. Access users, walls, groups, friends, newsfeed, photos, and community stats.