The tools agents can call
151,226 unique MCP servers across ten major directories and registries, each with its sources and history.
Each server counts once, however many directories list it. Glama, PulseMCP and mcp.so listings arrive through MCP Toplist’s open dataset, used under CC BY 4.0. 14,178 listings from bulk publishers wait for review.

One Step Travel
thomas
Plan trips and estimate costs
Listed on ChatGPT
OnePro AI
etf
Análise de investimentos
Listed on ChatGPT
OneUp Today
oneup
Find customers on Reddit
Listed on ChatGPT
Onsellr Marketplace
onsellr
Find cars in Australia
Listed on ChatGPT
Onyx Coach
coachito
Coach clients and workouts
Listed on ChatGPT
Oojo
dyninno
Compare flights
Listed on ChatGPT
OPEN - what is open right now
shimon
See what's open right now
Listed on ChatGPT
OpenArt
openart
Create images and videos
Listed on ChatGPT
Openlayer
openlayer
Monitor and govern AI
Listed on ChatGPT
OpenRegister
descartes
Find German company data
Listed on ChatGPT
OpenRegs: Regulatory Research
openlaws
Up-to-date laws, not the web
Listed on ChatGPT
OpenTable
opentable
Reserve your fav restaurant
Listed on ChatGPT
Opera Browser Connector
opera
Connect with the Opera browser
Listed on ChatGPT
OpsBack
opsback
Find jobs and customers
Listed on ChatGPT
Opscotch
opscotch
Knowledge and Validation
Listed on ChatGPT
OptimalCover
optimal
Independent Pricing Reference
Listed on ChatGPT
OptionsCalc
one
Construct option strategies
Listed on ChatGPT
OqoDesk
anatolii
Manage team tasks and shifts
Listed on ChatGPTOracle Analytics
openai
Explore dashboards, build analyses, and work with reports
Listed on ChatGPT
OrbitPage
paolo
Edit and publish web pages
Listed on ChatGPT
Order by Cash App
block
Order from nearby restaurants
Listed on ChatGPT
Ordering.Tools
reservation
Ordering for Restaurants
Listed on ChatGPT
OriginalVoices
originalvoices
Get human insight on any topic
Listed on ChatGPT
Orion
gravity
Get insights from your data
Listed on ChatGPT
Latest changes
Typed diffs between observations- GAIP — evidence on AI agents before and after you call them Official MCP Registry Description changed (registry)
Coverage
- Directory listings
- 55,890
- Brands resolved
- 23,471
- On two or more hosts
- 5,362
- Remote MCP servers
- 25,780
- Tools listed by probe
- 10,225 servers
Where are you listed?
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