MCP HeartbeatTHE MCP OBSERVATORY
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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.

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2609 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
0to100

Schedules, injury reports and fan-hub links for all 32 NFL and 30 NBA teams.

MediaAI / LLM tooling

Outdated check113 ms12 / 22
MTG Trade Scan

Scan MTG binder photos. 3 free pages/day then €0.01/page.

MediaAI / LLM tooling

Responded114 ms12 / 22
captcha.cc Human Verification

Human verification CAPTCHA with visual and selective-listening audio challenges.

MediaAI / LLM tooling

Outdated check115 ms12 / 22
media.probable/news

Cited news briefs and observed-corpus context. Free public reads; archives $0.10 or seven for $0.50.

MediaData access / search

Outdated check116 ms12 / 22
Luala

Photo shoots of you from your saved selfies: pick a pack, shoot, edit.

MediaAI / LLM tooling

Responded122 ms12 / 22
Zovo PDF Images

Extract the images embedded in a PDF document into one ZIP file, right in the chat.

MediaFile & docs

Outdated check124 ms12 / 22
AI MAXX Public Passports

Instant Malta visit facts and AI consultation: activities, dining, venues, photos and routes.

MediaAI / LLM tooling

Responded128 ms12 / 22
Zovo Photo to PDF

Turns JPG and PNG images into one PDF document.

MediaFile & docs

Outdated check130 ms12 / 22
iFun

Bilingual (VN/EN) jokes, quotes, fun facts and short videos from ifun.navatop.com.

MediaCode & DevOps

Outdated check135 ms12 / 22
Nukafever Photography

Search, quote, buy and download licensed documentary photos. No account, fixed prices.

MediaCode & DevOps

Outdated check135 ms12 / 22
Private AI Tools

Find the right free browser tool (PDF, image, video, audio, developer) and its link.

MediaFile & docs

Outdated check139 ms12 / 22
SUMMARU Breath

Breathing guide with voice and bowl, looping music, binaural beats, and a player link for users.

MediaAI / LLM tooling

Responded149 ms12 / 22
TrueCrime.News Case Archive

True crime cases, timelines, sources, news and related documentaries, podcasts and books.

MediaData access / search

Outdated check154 ms12 / 22
Boxlist

Taste-based film, TV, book and game picks: similar in feel, taste reads, picks for two.

MediaAI / LLM tooling

Responded168 ms12 / 22
ByteTrail

AI papers, dev-tool adoption, AI news and startup funding rounds, updated daily. No key needed.

MediaData access / search

Outdated check178 ms12 / 22
xkcd Comic Suggester

Suggests a relevant xkcd comic during a conversation, via semantic search over every comic.

MediaCode & DevOps

Outdated check196 ms12 / 22
Canonsheet

Consistent prompts for one human character across image and video models. Paid per call, x402.

MediaPayments & trading

Responded201 ms12 / 22
V³ News

Cited geopolitical events, multi-perspective briefs, and live breaking news from V³ News.

MediaData access / search

Outdated check202 ms12 / 22
com.nuditok/nuditok

Search adult porn video (NSFW, 18+): nude clips, creators, hashtags. Read-only, no API key.

MediaData access / search

Outdated check203 ms12 / 22
TuneViva

Read-only sheet music discovery and practice tools, with browser-local recognition guidance.

MediaCode & DevOps

Outdated check226 ms12 / 22
com.jojapi/youtube-download-api

Youtube Download API: Download audio and video from YouTube. On the JoJ API marketplace.

MediaAI / LLM tooling

Outdated check239 ms12 / 22
BlitzReels Video Editor

Create, edit, reframe, caption, organize, generate, and export short-form videos with BlitzReels.

MediaAI / LLM tooling

Responded244 ms12 / 22
КМВ INFO — новости Кавминвод

Local news of Caucasian Mineral Waters and Stavropol, Russia: incidents, outages, fuel, events

MediaData access / search

Outdated check247 ms12 / 22
Stockfilm — Authentic Vintage Footage

Search and license 217,000+ authentic vintage 8mm home movie clips (1930s-1980s).

MediaData access / search

Outdated check272 ms12 / 22

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