MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

Connect your agent

348 servers

Ordered by checks passedClear filters
Dated server measurements. The status describes the last probe or a listed authentication requirement. Checks that have not been measured are not failures. Open a server to inspect the evidence.
Server / capabilityLast probeMedian latencyChecks passedLast checked
Intact

IntAct (EBI) molecular-interaction database MCP. Keyless.

Developer ToolsDatabase

Outdated check66 ms13 / 22
Ygoprodeck

YGOPRODeck MCP — Yu-Gi-Oh! trading card game (TCG) database. Keyless. Sends a User-Agent. Base…

Developer ToolsPayments & trading

Responded96 ms13 / 22
Openchargemap

Open Charge Map MCP — global EV charging station database (openchargemap.io).

Developer ToolsDatabase

Outdated check97 ms13 / 22
Malwarebazaar

MalwareBazaar MCP — abuse.ch malware sample database (free, key required)

Developer ToolsDatabase

Outdated check97 ms13 / 22
Disney

Disney character database MCP.

Developer ToolsDatabase

Responded98 ms13 / 22
Nvd

NVD MCP — wraps the NIST National Vulnerability Database API.…

Developer ToolsDatabase

Outdated check101 ms13 / 22
Paleobiodb

Paleobiology Database (PBDB) MCP — the global fossil record. Keyless.

Developer ToolsDatabase

Outdated check103 ms13 / 22
Mobility Database

MobilityData's open catalogue of public-transport feeds — ~4,500 GTFS schedule feeds and ~1,900…

Developer ToolsDatabase

Outdated check103 ms13 / 22
Wipo Pearl

WIPO Pearl MCP — scientific, technical and IP legal terminology database.

Developer ToolsDatabase

Responded105 ms13 / 22
Overpass

OpenStreetMap Overpass MCP — programmatic queries against the OSM database

Developer ToolsDatabase

Outdated check105 ms13 / 22
Legislation Uk

legislation.gov.uk MCP — the UK's official legislation database.

GovernmentDatabase

Outdated check105 ms13 / 22
Pombase

PomBase MCP — the fission yeast (Schizosaccharomyces pombe) model-organism database.

Developer ToolsDatabase

Outdated check106 ms13 / 22
Kolada Se

Kolada (RKA) MCP — Sweden's municipal & regional key-performance-indicator (KPI) database.

Developer ToolsDatabase

Outdated check106 ms13 / 22
Usitc Edis

USITC IDS (Investigations Database System, ids.usitc.gov) — the CASE record for Section 337…

Developer ToolsDatabase

Responded109 ms13 / 22
Trivia

Trivia MCP — wraps Open Trivia Database (free, no auth)

Developer ToolsDatabase

Responded109 ms13 / 22
Wikipathways

WikiPathways MCP — open community pathway database.

Developer ToolsDatabase

Responded112 ms13 / 22
Openei Urdb

OpenEI Utility Rate Database (URDB) MCP

Developer ToolsDatabase

Responded114 ms13 / 22
Uniprot

UniProt MCP — protein sequence + function database.

Developer ToolsDatabase

Responded117 ms13 / 22
Jungle Scout

Jungle Scout MCP — Amazon sales estimates + product database + keyword data (junglescout.com).…

Developer ToolsDatabase

Outdated check117 ms13 / 22
Igdb

IGDB — the Internet Game Database (Twitch/Amazon), the reference catalogue for video games.

Developer ToolsDatabase

Outdated check117 ms13 / 22
Icij Offshore Leaks

ICIJ Offshore Leaks Database -- offshore entities, officers, intermediaries and the relationships…

Developer ToolsDatabase

Outdated check118 ms13 / 22
Nsf Awards

NSF Awards MCP — National Science Foundation award database (free, no auth)

Developer ToolsDatabase

Outdated check119 ms13 / 22
Opencellid

OpenCellID MCP — cell tower geolocation database (free with key)

Developer ToolsDatabase

Outdated check120 ms13 / 22
Peeringdb

PeeringDB MCP — the peering ecosystem database. Look up networks by name or ASN, find internet…

Developer ToolsData access / search

Outdated check123 ms13 / 22

Automated measurements. Not a rating. Unmeasured checks are not failures. How to read the evidence