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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1420 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
com.groundedaeo/grounded-aeo

Audit and fix a site for AI citation + SEO, verify it, then publish a v=AEO1 record.

Marketing & SalesKnowledge & memory

Outdated check579 ms10 / 22
MCP Devis

Calculate French quote totals and VAT, list legal mentions, and render printable HTML quotes.

LegalKnowledge & memory

Outdated check581 ms10 / 22
io.github.sina158/spectre-markets

Live NQ/ES gamma levels, session paths and trade ideas from SPECTRE Markets. Research only.

Developer ToolsCode & DevOps

Outdated check717 ms10 / 22
Gabriel S. Gusmao: Research and Scientific CLIs

Gabriel S. Gusmao: scientific ML, papers, and local JAX CLIs: KINN, Optinpy, mkin4py, xl2py.

Developer ToolsCode & DevOps

Outdated check761 ms10 / 22
BLS Employment & Wages

Unemployment rates, labor force, and Consumer Price Index from the Bureau of Labor Statistics

Data & AnalyticsData access / search

Outdated check874 ms10 / 22
science.executable/executable-science

Read-only research pilot catalogue: task templates, resources, starter studies, capability status.

OtherOther

Outdated check1073 ms10 / 22
AIGC Radar MCP

AI-vertical index: arXiv papers, curated GitHub AI projects, daily rankings. Zero-setup, read-only.

Developer ToolsCode & DevOps

Outdated check1202 ms10 / 22
com.borisinc/tools

Pay-per-call AI tools over x402: web research, summarization, structured extraction (USDC, Base).

Finance & CryptoPayments & trading

Outdated check1846 ms10 / 22
MedicalRecords.com EMR Discovery & Healthcare Research

EMR software discovery, sourced comparisons, and public US healthcare research.

HealthcareCode & DevOps

Outdated check3387 ms10 / 22
com.dropwatchhq/research-intel

Research GTM triggers: new NIH grants by PI/institution and new clinical trials by sponsor/phase.

HealthcareData access / search

Responded65 ms10 / 22
io.tooloracle/rankoracle

SEO Intelligence MCP — 13 tools: keyword research, SERP, domain audits, competitors.

Marketing & SalesBrowser & web scraping

Outdated check87 ms10 / 22
io.tooloracle/law

LawOracle — 20 legal AI tools: case law search, contracts, EU regulations, citation graph.

LegalKnowledge & memory

Outdated check91 ms10 / 22
ResearchSprint

AI research reports: market analysis, competitor intel, blog posts. USDC payment.

Finance & CryptoPayments & trading

Outdated check439 ms10 / 22
Agent Papers

Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance

LegalCommunication & messaging

Outdated check466 ms10 / 22
Academic Research Search

Academic research search across PubMed and arXiv

OtherKnowledge & memory

Outdated check638 ms10 / 22
AI/ML Research Papers

AI/ML research papers from arXiv, DBLP, and HuggingFace

Developer ToolsAI / LLM tooling

Outdated check639 ms10 / 22
US Legal Case Search

US legal case search: court decisions and company litigation history

LegalData access / search

Outdated check677 ms10 / 22
Health Data

Health data: NIH grants, WHO statistics, and genetic variants

Data & AnalyticsData access / search

Outdated check677 ms10 / 22
io.tooloracle/researchoracle

ResearchOracle - 11 financial research tools: 10-K parsing, equity, macro, citation graph.

OtherKnowledge & memory

Outdated check88 ms9 / 22
ETOPS for Agents: Diversion-Reach Dispatch Certification

Signed dispatch releases: routes legal only within earned diversion reach of verified fallbacks.

LegalKnowledge & memory

Outdated check333 ms9 / 22
Moltline Research Desk

7 research navigation, thesis, note-taking and citation skill products. 6 of 8 free.

ProductivityKnowledge & memory

Outdated check516 ms9 / 22
Pyfile LLM & Data API

Pay-per-call LLM chat plus data tools: DNS, crypto, Base gas, Wikipedia. x402 USDC or Lightning.

Finance & CryptoPayments & trading

Outdated check293 ms8 / 22
Projectory

Find UAE off-plan developments, registered residential sales and research reports.

Developer ToolsCode & DevOps

Unreachable97 ms7 / 22
Space Kitty Archive

Frontier-research archive: free catalog and search; premium dossiers cost $0.20 per call via x402.

Finance & CryptoData access / search

Unreachable78 ms6 / 22

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