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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18500 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
Phishunt

Public phishing feed: suspicious/confirmed phishing URLs detected hourly. No auth, CC0.

Developer ToolsCode & DevOps

Responded59 ms14 / 22
AI Visibility Checker

Free, no signup. Check if ChatGPT, Perplexity & Google AI recommend a brand in 15 markets (GEO/AEO).

Developer ToolsAI / LLM tooling

Responded59 ms14 / 22
Kadent Scan

Free, read-only security scanner for remote MCP servers, before you connect them.

Developer ToolsCode & DevOps

Responded59 ms14 / 22
io.github.mingyo186/partreel

Verified KiCad footprints, symbols & 3D models for AI agents. No signup, CC-BY-4.0, quality-gated.

Developer ToolsCode & DevOps

Responded59 ms14 / 22
Zylvie MCP by usefulapi

Review Zylvie coupons, sales transactions and subscriptions.

Developer ToolsPayments & trading

Responded59 ms14 / 22
Taleez MCP by usefulapi

Read Taleez recruiting data; create or update candidates and add them to pools or jobs.

Developer ToolsCode & DevOps

Responded59 ms14 / 22
x402lint

Free x402 endpoint linter: unpaid 402 challenge, payTo/asset/amount, CORS, directory readiness.

Developer ToolsCode & DevOps

Responded60 ms14 / 22
Stuart MCP by usefulapi

Quote, validate, book and track Stuart courier deliveries; cancel jobs and check zone coverage.

Developer ToolsCode & DevOps

Responded60 ms14 / 22
Smartplan MCP by usefulapi

Read accounts, staff, shifts, worklogs and absence dates in Smartplan.

Developer ToolsCode & DevOps

Responded60 ms14 / 22
Freightview MCP by usefulapi

Rate, book and cancel LTL, parcel and truckload shipments, and track them in Freightview.

Developer ToolsCode & DevOps

Responded60 ms14 / 22
Portvan

Branded IPFS gateway on your own domain: order by API, pay exact USDT (TRC20). Agent-ready catalog.

Developer ToolsCode & DevOps

Responded61 ms14 / 22
io.github.ryuamarines/json-schema-validator

Validates JSON against a JSON Schema, lists violations. x402 payment required (Base mainnet USDC).

Developer ToolsPayments & trading

Responded61 ms14 / 22
Casona Signature — Personalized Cartagena Experiences

Explore Casona dining, spa and luxury experiences, and prepare non-binding draft quotations in COP.

Developer ToolsCode & DevOps

Responded61 ms14 / 22
Share HTML

Create sandboxed public-unlisted or access-key-protected HTML previews through a remote MCP server.

Developer ToolsCode & DevOps

Responded61 ms14 / 22
MarketTime MCP by usefulapi

MCP server for MarketTime — wholesale orders, customers, catalog and shipment tracking.

Developer ToolsCode & DevOps

Responded61 ms14 / 22
Givecloud MCP by usefulapi

Read supporters, contributions, recurring donations, fundraising products and feed posts.

Developer ToolsCode & DevOps

Responded61 ms14 / 22
HALLUX

Check that a package, module or DOI exists before an agent installs, imports or cites it.

Developer ToolsCode & DevOps

Responded62 ms14 / 22
クビアカのいま (Aromia bungii in Japan)

Red-necked longhorn beetle (Aromia bungii) in Japan: damage status, new detections, rewards by city.

Developer ToolsCode & DevOps

Responded62 ms14 / 22
AgenticRail Gate - sequence enforcement and verifiable audit receipts for AI agent compliance

Deterministic runtime enforcement of step order for AI agents: ALLOW/DENY before a step runs.

Developer ToolsCode & DevOps

Responded62 ms14 / 22
Order Desk MCP by usefulapi

Search Order Desk orders and inventory; read order items and shipments; create or update orders.

Developer ToolsData access / search

Responded62 ms14 / 22
Yakumo verified contractor No.001: Reform Shokunin Co., Ltd. (Aichi, Japan)

Verified profile of Reform Shokunin Co., Ltd., a Yakumo member renovation contractor in Aichi.

Developer ToolsCode & DevOps

Responded63 ms14 / 22
CollectSEA

Find real software, security and AI-agent failures that resemble your design, with safeguards.

Developer ToolsCode & DevOps

Responded63 ms14 / 22
Merlonix Monitoring

Monitoring for agencies — uptime, SSL, DNS, blocklists, AI visibility, MCP health. 8 no-auth tools.

Developer ToolsMonitoring & observability

Responded63 ms14 / 22
Spoke Dispatch MCP by usefulapi

Read Spoke Dispatch plans, stops, routes and drivers; create and optimize plans; send routes.

Developer ToolsCode & DevOps

Responded63 ms14 / 22

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