MCP servers (14664)
Opentreeoflife
Open Tree of Life MCP.
Openverse
Openverse MCP — Creative-Commons-licensed image + audio search.
Openweather
OpenWeather MCP — wraps the OpenWeatherMap API (openweathermap.org)
OperatorNest tools
Calculate API and subscription costs, meeting time zones, recurring schedules and cron matches.
Oqmd
OQMD (Open Quantum Materials Database) MCP.
Orange Peel
Cited Hermès price & resale market data as MCP tools, with attribution. Not affiliated.
Orcid
ORCID MCP — public records.
Organizze
Your Organizze finances in natural language: consolidated balances, monthly overview, transaction se
Osf
OSF (Open Science Framework, by the Center for Open Science) MCP.
Osrm
OSRM MCP — routing via the public demo server
Osv
OSV.dev (Open Source Vulnerabilities) MCP.
Osv Dev
OSV.dev — Google's open-source vulnerability database
Outlook Mail
Outlook Mail (Microsoft 365) MCP Pack
Overpass
OpenStreetMap Overpass MCP — programmatic queries against the OSM database
Overwing
Guardrails for LLM output: pass / fail / review verdicts and one recommended action. Hosted or npm.
Owasp
OWASP MCP — keyless.
Oxylabs
Oxylabs MCP — Oxylabs Web Scraper API (oxylabs.io)
Oyez
Oyez SCOTUS MCP.
PDF Text Extractor for AI Agents
x402 PDF text, pages, and metadata for AI/RAG. $0.0015 per successful PDF.
PEP 621 project name shape, body discarded
PEP 621 project name shape, body discarded
POSIX shell quote shape, input discarded
POSIX shell quote shape, input discarded
PREFLIGHT — URL Routing for AI Agents
Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.
Pacific/Apia clock
Current local time in Pacific/Apia.
Pacific/Chatham clock
Current local time in Pacific/Chatham.
Pacific/Fiji clock
Current local time in Pacific/Fiji.
Pacific/Kiritimati clock
Current local time in Pacific/Kiritimati.
Pacific/Majuro clock
Current local time in Pacific/Majuro.
Pacific/Midway clock
Current local time in Pacific/Midway.
Pacific/Pago_Pago clock
Current local time in Pacific/Pago_Pago.
Pacific/Palau clock
Current local time in Pacific/Palau.