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MCP Server Directory
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45,094 matching servers
Operational
OnPage.dev
dev.onpage/onpage
Free SEO MCP that closes the loop: find, fix, ship as a PR or to a CMS, prove. 37 tools, no key.
209 ms latency— 24h
Auth required
Onplana
io.github.Onplana/mcp-server
AI-native project and portfolio management platform for PMOs. OAuth + PAT.
1047 ms latency— 24h
Operational
ONR: Mapa do Registro de Imóveis
io.github.mcp-dir/onr_mapa_registro_imoveis-mcp
ONR: Mapa do Registro de Imóveis, official-source lookup. Platform-hosted, pay per query with prepai
653 ms latency— 24h
Operational
onramperx
com.mudko/onramperx
Non-custodial value router: ranked fiat/crypto & cross-chain routes, swaps, onramp, gasless wallet.
388 ms latency— 24h
Down
Ons Uk
io.github.pipeworx-io/ons-uk
UK Office for National Statistics dataset catalogue + Beta JSON API
90 ms latency0% 24h
Operational
Onsa
ai.onsa/onsa
Find scored B2B leads, read campaign replies and send approved LinkedIn outreach.
203 ms latency100% 24h
Auth required
Onsomble
ai.onsomble/onsomble
Track how AI assistants talk about your brand and market, and learn how to show up better.
927 ms latency— 24h
Operational
Ontario Protocol
com.ontarioprotocol/ontario-protocol
Free x402 readiness/can-pay and Bazaar buyer-task checks; signed provider passports cost 2.00 USDC.
373 ms latency— 24h
Operational
Onthisday
io.github.pipeworx-io/onthisday
On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)
1234 ms latency100% 24h
Auth required
Onto
io.github.ravixalgorithm/onto
Clean Markdown and AI-readability scoring for any URL. Built for AI agents.
332 ms latency— 24h
Auth required
Ontonym
com.ontonym/memory
Give your agents your team's real data — read the shared graph, propose actions your team approves.
375 ms latency— 24h
Operational
Onvexia: Crypto Fundamentals, Sentiment & Onchain Tracking
com.onvexia/onvexia
Crypto fundamentals, sentiment, whale tracking and influencer call accuracy for traders and agents.
603 ms latency— 24h
Auth required
Onymu
com.onymu/onymu
Check domain availability across every extension, generate names, and check social handles.
668 ms latency— 24h
Operational
onyx-mcp
io.github.dimitrilaouanis-tech/onyx-mcp
Ed25519-signed ground-truth oracle — 63 paid x402 tools live on Base mainnet.
1318 ms latency— 24h
Operational
OODS Foundry
com.oods-foundry/foundry
OODS Foundry is an object-oriented design system that extends the one you already have.
2437 ms latency— 24h
Auth required
Oolkin
com.oolkin/oolkin
AI colleagues that keep your standards, your project and their reasoning between sessions
1044 ms latency— 24h
Operational
Ooni
io.github.pipeworx-io/ooni
OONI MCP — internet censorship & website reachability measurements from the
1227 ms latency100% 24h
Down
OOTWOracle — Psychedelic Medicine Intelligence
com.ootworacle.www/predictions-server
AI predictions on psychedelic medicine regulation. 8-agent swarm, 460+ daily signals, free API.
233 ms latency— 24h
Operational
OPC UA Modeler
io.github.node-opcua/node-opcua-modeler-mcp-server
OPC UA companion spec types, namespace dependencies, and engineering units for AI agents
1233 ms latency— 24h
Operational
OPC UA NodeSet Gate
io.github.ChanghuLiu/opc-ua-nodeset-compatibility-gate
Deterministic release-compatibility preflight for OPC UA NodeSet2 XML.
613 ms latency— 24h
Operational
opchain
io.github.asfbay-bit/opchain-skills
Claude Code / MCP skills for the dev pipeline: discover, spec, design, build, ship, operate.
233 ms latency— 24h
Auth required
opc-mcp-server
io.github.Steveser1989/opc-mcp-server
OPC Suite — CRM, sales, inventory, accounting, HRM, payroll, claims, projects from any AI agent.
224 ms latency— 24h
Operational
Opedd — Licensed Content for AI
com.opedd/opedd-mcp
Licensed, rights-cleared content for AI agents - verifiable license keys + EU AI Act attestation.
773 ms latency— 24h
Operational
Open Agreements
io.github.open-agreements/open-agreements
Fill standard legal agreement templates (NDAs, SAFEs, NVCA docs, employment) as DOCX files.
641 ms latency— 24h