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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1414 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
exam.now

Cambridge, AQA and Edexcel past papers: questions, figures and mark schemes by part, and marking.

OtherOther

Outdated check69 ms12 / 22
Policy Pal

Grounded, quoted readings of privacy policies and terms of service. Not legal advice.

LegalKnowledge & memory

Outdated check70 ms12 / 22
ChangeOrder

Flag mid-project scope changes and draft a priced change-order reply. Not legal advice.

LegalKnowledge & memory

Outdated check79 ms12 / 22
Outdated check80 ms12 / 22
Suzuri

Semantic search across Japan's government white papers, in English or Japanese. Free beta.

GovernmentData access / search

Outdated check82 ms12 / 22
Outdated check86 ms12 / 22
AI Verified

verify_business checks identity by domain or hash. Not a ranking, citation, or recommendation.

OtherKnowledge & memory

Outdated check86 ms12 / 22
DutyKit

EU business duties for AI agents: legal obligations with sources and pre-checks (DE, LU, EU)

LegalCode & DevOps

Outdated check95 ms12 / 22
Agent Data Hub

Official statistics and economic data for agents, with source and licence per answer. No key.

GovernmentCode & DevOps

Outdated check95 ms12 / 22
Zovo Paper Finder

Build a literature list for a student paper, thesis or research project from Crossref.

EducationCode & DevOps

Outdated check96 ms12 / 22
MetricDuck — Financial Analysis

Research U.S. public companies from their SEC filings: financials, XBRL facts and filing text.

OtherOther

Outdated check97 ms12 / 22
Tradoshi rankings and research

2027 rankings of trading schools and prop firms, every criterion sourced, plus market data

Finance & CryptoData access / search

Outdated check98 ms12 / 22
Tue Christensen

Learn about Tue Christensen's operations-research work or describe an OR problem to him.

OtherOther

Outdated check101 ms12 / 22
Vagus Lab Research

Cited VNS research passages from a curated corpus, plus a scored device comparison.

OtherOther

Outdated check106 ms12 / 22
Ryufin

Free US stock research from SEC filings: five plain answers on 3,000+ stocks. No API key.

Finance & CryptoPayments & trading

Outdated check111 ms12 / 22
Tamgara

Fill in 1,000+ legal PDF templates in many languages, get a signed PDF back. Free, no API key.

LegalFile & docs

Outdated check115 ms12 / 22
tw.org.legaltech/taiwan-law

Taiwan legal research MCP: 判決書、全國法規、釋字/憲判與立法歷程查詢,12 個工具,回應均附官方出處 URL。

LegalKnowledge & memory

Outdated check116 ms12 / 22
Safe Rate

US mortgage rate estimates, lender rankings and research, and US Treasury market data.

Finance & CryptoData access / search

Outdated check118 ms12 / 22
RCQ Data Oracle

Signed BTC and macro market intelligence for autonomous research, risk, and trading agents.

Finance & CryptoPayments & trading

Responded122 ms12 / 22
Vitextra Knowledge Base

Search and read Vitextra docs, product pages, how-to guides and FAQ.

OtherKnowledge & memory

Outdated check126 ms12 / 22
SiteCheck Company Records

121 pay-per-call agent tools: company registry, government, legal and B2B data tools. x402

GovernmentCode & DevOps

Outdated check131 ms12 / 22
Subhadip Mitra: essays, research and projects

Read-only search and full text of Subhadip Mitra's essays, papers, projects and measured results.

OtherData access / search

Outdated check132 ms12 / 22
Riptide — public risk and event research

Read-only paper risk evidence and policy-gated committed event research. No real orders.

Developer ToolsCode & DevOps

Outdated check133 ms12 / 22
Location & Demand Intelligence

Pay-per-call where-and-when-to-operate signals from official local statistics.

Data & AnalyticsData access / search

Outdated check135 ms12 / 22

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