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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18024 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
RegEvidenceHub CableCert

Independent owner-side QA for structured-cabling certification closeout evidence.

Developer ToolsCode & DevOps

Outdated check132 ms14 / 22
RenooLab - artisans in France

Find French tradespeople, plan multi-trade projects, submit moderated contacts, create profiles.

Developer ToolsCode & DevOps

Outdated check132 ms14 / 22
Agent Service Exchange

Find providers; send authorised installation or cleaning enquiries in Vienna. No customer account.

Developer ToolsCode & DevOps

Outdated check133 ms14 / 22
EU Safety Gate Product Recalls

Is this product recalled in the EU? 46,506 official Safety Gate alerts by GTIN, brand or name.

Developer ToolsCode & DevOps

Outdated check133 ms14 / 22
io.github.tinygodsdev/word-aligner

Turn a phrase and its translation into a shareable word-alignment diagram.

Developer ToolsCode & DevOps

Outdated check133 ms14 / 22
Cloudhil

Flash pre-built STM32/LPC ELFs on real Nucleo/Discovery boards over HTTPS. Does not compile.

Developer ToolsCode & DevOps

Outdated check133 ms14 / 22
Bidsketch MCP by usefulapi

Read Bidsketch clients, proposals, fees and templates; create and update clients, proposals, fees.

Developer ToolsCode & DevOps

Responded134 ms14 / 22
MCP Selection Lab

Benchmark MCP tool selection with metadata-only routing, collision, abstention, and holdout checks.

Developer ToolsCode & DevOps

Outdated check134 ms14 / 22
Atlas of Plant Based: PCT data

Read-only Pacific Crest Trail data: legs by trail mile, towns, passes and lakes, and vegan resupply.

Developer ToolsCode & DevOps

Outdated check134 ms14 / 22
Muslim Prayer Reminder MCP

Production-ready Muslim prayer reminder MCP with astronomical precision and theological disclosure.

Developer ToolsCode & DevOps

Outdated check134 ms14 / 22
BoringToolsKit

36 free private calculator tools for Claude. No accounts, no data leaves your session.

Developer ToolsCode & DevOps

Outdated check134 ms14 / 22
US Federal Awards (USAspending)

See who wins US federal contracts and grants (USAspending.gov). $0.02/call via x402.

LegalCode & DevOps

Outdated check135 ms14 / 22
RegEvidenceHub Premises

RegEvidenceHub Premises: UK premises-licensing preflight for supported authorities.

Developer ToolsCode & DevOps

Outdated check135 ms14 / 22
Vinktar

Error tracking for small teams and their coding agents.

Developer ToolsCode & DevOps

Outdated check138 ms14 / 22
io.github.giuseppesocci-bot/kalicart-global

Federated commerce search across independent WooCommerce merchants. Keyless, read-only MCP server.

E-commerceCode & DevOps

Responded139 ms14 / 22
Company Lookup (GLEIF LEI, UK, Norway)

Confirm a company exists and is active (GLEIF, Norway registry). $0.02/call via x402.

Developer ToolsCode & DevOps

Outdated check139 ms14 / 22
Oliver's mTOR Atlas

Evidence-labelled mTOR research: studies, entities, pathway claims, contradictions, open questions.

Developer ToolsCode & DevOps

Outdated check139 ms14 / 22
Redeal

Neutral fairness computation for agents: fair division, verifiable random, Shapley shares.

Developer ToolsCode & DevOps

Outdated check139 ms14 / 22
io.github.41fred/ibo

Commission cinematic AI campaign films from IBO Studio, with custom scoping when needed.

Marketing & SalesCode & DevOps

Responded140 ms14 / 22
BullionRadar

Prix live de 11 dealers et specs complètes de 80+ pièces d'or et d'argent, pour agents IA.

Developer ToolsCode & DevOps

Outdated check140 ms14 / 22
WeJob

Read-only MCP server for public WeJob jobs, formations, and companies.

Developer ToolsCode & DevOps

Responded141 ms14 / 22
Almirall MCP

Official Almirall company, product and brand info: Almax, Hidroxil, Calmatel, Cicopoli and more.

Developer ToolsCode & DevOps

Responded141 ms14 / 22
Skuuy MCP

13 privacy-first network, auth & web tools for AI agents — no API key, 60 req/min free.

Developer ToolsCode & DevOps

Outdated check141 ms14 / 22
Angels for Agents Funding

Discover AFA funding and venture resources, validate pitches, and report grant milestones.

Developer ToolsCode & DevOps

Outdated check141 ms14 / 22

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