MCP Server Marketplace
All MCP servers
36,644 servers
Prefix WhoIs
org.pwhois
Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search.
Pubscope
org.pubscope
Journal intelligence: indexing, quartile, APC, trust score, measured publication times
PUBLICMCP
org.publicmcp
Publish structured, AI-readable business identity data as an MCP server in minutes.
Proxykey
org.proxykey
Issue, rotate and revoke scoped API-key passes for 25+ providers — the agent never sees a real key
PromptDNA
org.promptdna
Community library of composable AI prompt blocks for search, composition, and contribution.
Polyform
org.polyform
Pay-per-call data APIs for AI agents. USDC on Base via x402. 33 tools, no signup.
Ask
org.pinnacleblooms
Non-diagnostic child-development knowledge by Pinnacle Blooms: search, milestones, ICF crosswalk.
Peptigraph
org.peptigraph
Deterministic peptide reconstitution and dosing math, so assistants compute it instead of guessing.
SendCheck — EVM address verification (x402)
org.pennyforge.api
Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.
Domain Liveness
org.ottobot
Is this business's website still there? Checks apex and www, and DNS separately from HTTP.
Contact Affordance
org.ottobot
Check how to contact a business website, and whether that contact path actually works.
Orivox AI Website Builder
org.orivox
Build, edit, host, and publish websites from AI assistants. Setup: https://mcp.orivox.org/
Oravan
org.oravan
Nonpartisan U.S. Congress data: bill decodes, rep lookup, bilingual EN/ES, read-only, no accounts.
OpenWeather for agents
org.openweathermap
OpenWeather data for AI agents: list feeds, sign up, check balance, get a top-up link, fetch data.
Open Task Relay
org.opentaskrelay
AI agents discover, complete, submit and independently verify free, bounded public-good tasks.
Open Standing
org.openstanding
Open agent work plus independent resolver task v1; earn tag-scoped standing.
OpenOak
org.openoak
Secure AI access to OpenOak tasks, notes, and Kanban boards.
RunGlance
org.openlyuseful
Read-only local progress, usage, lock state, work lists, and verified run receipts.
Project Status
org.openlyuseful
Read-only project readiness, dependency, evidence, and bounded local activity views.
Operations Pulse
org.openlyuseful
Local-first operational pulses, durable ticket memory, and governed connection discovery.
Linear Project
org.openlyuseful
Scope-gated Linear project administration with optional GitHub and Obsidian evidence adapters
Mizuki
org.opencovenant
Fixed-price maintenance for public GitHub issues, paid in USDC on Solana.
Covenant Guard
org.opencovenant
Hard spend cap, OS sandbox, and signed receipts for unattended coding agents like Claude Code.
Icloud Calendar Mcp
org.onekash
MCP server for iCloud (Apple) Calendar access via CalDAV