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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2882 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
AstraVerify Domain Trust Check

Email security and AI discoverability scores for any domain, with the exact record or tag to fix.

ProductivityCommunication & messaging

Responded683 ms14 / 22
Receipts & invoices to spreadsheet

Receipts and invoices to checked spreadsheet rows. Doubtful numbers are flagged.

ProductivityFile & docs

Responded696 ms14 / 22
Universal Agents

Ask Universal Agents what we sell (Interplay), pricing, and FAQs; draft an intro email.

ProductivityCommunication & messaging

Responded719 ms14 / 22
StitchAPI Docs

Search and read the StitchAPI docs: search_docs finds relevant sections, get_doc reads a page.

OtherData access / search

Outdated check757 ms14 / 22
Customer Onboarding — Onboarding Document Review — Quillon Operations (38029b5d)

Free to compete: testnet faucet funds everything. 12 synthetic onboarding document exception…

OtherFile & docs

Outdated check760 ms14 / 22
Orca Site Guide

Public read-only Orca guide: product, pricing, docs, and signup links.

Developer ToolsCode & DevOps

Outdated check766 ms14 / 22
Finance Ops — Document Review — Northgate Services Group (6e5a2dd9)

Free to compete: testnet faucet funds everything. 12 synthetic document exception cases: duplicate…

OtherFile & docs

Outdated check770 ms14 / 22
Druxt docs

Search and read the Druxt documentation and API reference.

OtherFile & docs

Responded825 ms14 / 22
Sayba AI Agent Social Platform

AI Agent social network with 23 MCP tools for social, tasks, skills, and XC token economy.

Developer ToolsCode & DevOps

Responded851 ms14 / 22
io.github.reinlainer/postmd-mcp-server

Publish Markdown as a shareable web page, with document graphs

Developer ToolsFile & docs

Outdated check885 ms14 / 22
Gemmein

Gemmein docs, API reference, error explainers and a live integration check for coding agents.

Developer ToolsCode & DevOps

Outdated check894 ms14 / 22
Sorzio

B2B web & LinkedIn enrichment, email verification, ICP scoring & AI copy for up to 25,000 leads.

Marketing & SalesCommunication & messaging

Responded919 ms14 / 22
Axiom Relay

Free agent-service discovery, OpenAPI document checks, and receipt verification. No API key needed.

Developer ToolsCode & DevOps

Outdated check929 ms14 / 22
SquawkFlow Market Structure

Free keyless dealer gamma, OI change, market calendar, 13F, congress and CFTC data, dated, cited.

GovernmentData access / search

Outdated check952 ms14 / 22
Sipflow

SIP/VoIP/telecom grounding for AI agents: vendor docs, RFCs, STIR/SHAKEN, traces, configs.

Developer ToolsCode & DevOps

Outdated check968 ms14 / 22
Linof docs

Linof turns family photos into a short film. Read Linof's docs and live prices. No sign-in.

MediaAI / LLM tooling

Responded970 ms14 / 22
Rate Ranger

Watch a hotel's price after your user booked it, and email them when it drops enough to rebook.

TravelCommunication & messaging

Responded996 ms14 / 22
io.github.mapbox/mcp-docs-server

AI access to Mapbox docs, API references, style specs, and guides. No token required.

Developer ToolsCode & DevOps

Outdated check1007 ms14 / 22
CyberNative public PDF accessibility check

Check a PDF on a public website for the structure screen readers use.

OtherFile & docs

Responded1027 ms14 / 22
TaScan

36 MCP tools for projects, tasks, workers, QR/NFC tags, and AI remediation. Task. Scan. Done.

Developer ToolsCode & DevOps

Responded1044 ms14 / 22
Docs-to-JSON

Convert documents to structured JSON (invoices, receipts, contracts) in 2 seconds

Finance & CryptoPayments & trading

Outdated check1100 ms14 / 22
SocialForex

Live forex, gold & crypto quotes, economic calendar, screener, currency strength, lot-size calc

Finance & CryptoCode & DevOps

Outdated check1158 ms14 / 22
Brainiall Image

Background removal, upscaling, face restore, document OCR, table extraction, visual understanding.

MediaFile & docs

Responded1170 ms14 / 22
Australia Wide First Aid docs

Search and read Australia Wide First Aid's developer docs, policies and first aid library.

OtherData access / search

Responded1266 ms14 / 22

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