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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40713 servers

Ordered by checks passed
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
SimpleTexting MCP by usefulapi

Send SMS/MMS, manage contacts, and read campaigns, messages and media on SimpleTexting.

Marketing & SalesCommunication & messaging

Responded104 ms15 / 22
Plausible MCP by usefulapi

Query site stats, realtime visitors, breakdowns and goals from Plausible Analytics.

Data & AnalyticsData access / search

Responded104 ms15 / 22
Recharge MCP by usefulapi

Read subscriptions, customers, charges, orders; skip charges, cancel or activate subscriptions.

Developer ToolsPayments & trading

Responded105 ms15 / 22
Gingr MCP by usefulapi

Read Gingr reservations, owners, pets, check-ins, invoices and timeclock for your pet-care business.

Finance & CryptoPayments & trading

Responded105 ms15 / 22
Cuttly MCP by usefulapi

Shorten links with Cuttly, read click stats, and edit, expire, redirect or delete short links.

Developer ToolsCode & DevOps

Responded105 ms15 / 22
Rast Creator Tools

Short-form video tools: Reels/TikTok/Shorts safe zones, bitrate math, SRT checks, export settings.

MediaCode & DevOps

Outdated check105 ms15 / 22
Biohacking Kompakt

Evidence-rated German database of supplements, peptides and longevity methods, plus podcast.

MediaDatabase

Outdated check105 ms15 / 22
Canton Venues

Live Canton Network DEX data: prices, best execution across venues, exit cost, premiums. No key.

OtherOther

Outdated check105 ms15 / 22
Silverfin MCP by usefulapi

Read companies, periods, trial balances, workflows and reconciliations in Silverfin.

Developer ToolsAutomation & workflows

Responded106 ms15 / 22
Kisi MCP by usefulapi

Read Kisi places, doors, users, groups, access rights and access logs (no unlocking).

Developer ToolsCode & DevOps

Responded106 ms15 / 22
Folklore Clinical Variant Interpretation MCP

Germline ACMG/AMP classification, genes, disease associations, literature and API-key case analysis.

HealthcareCode & DevOps

Outdated check106 ms15 / 22
Amtsblick

Wetter und Pegel je Gemeinde in Österreich. Privates Projekt, kein offizielles Behördenangebot.

Developer ToolsCode & DevOps

Outdated check106 ms15 / 22
JobYap Job Search

Search job postings aggregated from companies' careers sites, plus each job's discussion thread.

ProductivityData access / search

Outdated check106 ms15 / 22
AgentMsgr

Group chat for agents: 9 tools — messages, replies, briefings, approvals, wake links, setup reports.

Developer ToolsCode & DevOps

Outdated check106 ms15 / 22
Shiftbase MCP by usefulapi

Read Shiftbase rosters, timesheets, absences and availability; schedule shifts and review absences.

Developer ToolsCode & DevOps

Responded107 ms15 / 22
PersonalKnowHow

Live public demo: query one person's learning and work history as a knowledge graph via MCP.

Developer ToolsCode & DevOps

Outdated check107 ms15 / 22
frag.hugo

GDPR platform: your assistant fills in VVT, TOMs, AVV and DSFA, your DSB reviews them.

LegalKnowledge & memory

Outdated check107 ms15 / 22
MAC Address Lookup

Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.

Developer ToolsData access / search

Outdated check107 ms15 / 22
GreenCycle Compound Atlas

Read-only cannabis compound, receptor, anatomy and evidence data, every value sourced.

OtherOther

Outdated check107 ms15 / 22
Dictionary of Applied Machine Learning

Look up, search and cross-reference machine-learning terms from dictionaryofml.org.

OtherData access / search

Responded108 ms15 / 22
D7 Networks MCP by usefulapi

Read D7 Networks balance, SMS pricing and delivery status; look up numbers; send one SMS.

ProductivityData access / search

Responded108 ms15 / 22
Emendas parlamentares do Brasil

Brazilian federal budget amendments by municipality, author and recipient. Paid via Lightning.

GovernmentCode & DevOps

Responded108 ms15 / 22
CKB Pulse

Who builds on Nervos CKB, from public GitHub: projects, people, updates, DAO-funded work. Read-only.

Developer ToolsCode & DevOps

Outdated check108 ms15 / 22
LiveVariant

Build, inspect and read adaptive A/B tests. Config travels in the URL; no account or API key needed.

TravelCode & DevOps

Outdated check108 ms15 / 22

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