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.

Connect your agent

1052 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
AgentMart

Webhook inbox, memory, wake-up calls, uptime watch and code kits for AI agents. Prepaid balance.

ProductivityMonitoring & observability

Responded707 ms16 / 22
Feldspar free repository security scan

Free deterministic security scan of public git repos: OSV.dev vulnerable deps, secrets, config lint.

Developer ToolsCode & DevOps

Responded35 ms15 / 22
Oh My Share

Publish HTML/code from your agent to openanthropic.com and get a shareable link.

Developer ToolsCode & DevOps

Responded73 ms15 / 22
Oh My Share

Publish HTML/code from your agent to openanthropic.com and get a shareable link.

Developer ToolsCode & DevOps

Responded81 ms15 / 22
Guild Wars 1 Build Compiler

GW1 build compiler: skill data, template code encode/decode, validation, hero roster. Read-only.

Developer ToolsCode & DevOps

Responded93 ms15 / 22
CKB Pulse

Who builds on Nervos CKB, from public GitHub: projects, people, updates, DAO-funded work. Read-only.

Developer ToolsCode & DevOps

Responded108 ms15 / 22
PublicWWW

Search the source code (HTML, JavaScript, CSS) of web pages.

Developer ToolsData access / search

Responded119 ms15 / 22
Repo Run Check

Check GitHub repos and shell commands for malware-delivery tricks before an AI agent runs them

SecurityCode & DevOps

Responded122 ms15 / 22
PHP, Symfony & Laravel playground

Create shareable links to run Symfony, Laravel or plain PHP code in the browser, no install.

Developer ToolsCode & DevOps

Responded168 ms15 / 22
Moxie Docs

Living docs and MCP context for GitHub repos — conventions, gaps, and source-cited pages on merge.

Developer ToolsCode & DevOps

Responded171 ms15 / 22
Senzing

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

Developer ToolsData access / search

Responded189 ms15 / 22
Trading Zones 4H Market Decisions

BTC, ETH, XRP, ONDO and TZ SELECT 4H decisions, native x402 MCP and open buyer SDK.

Finance & CryptoPayments & trading

Responded203 ms15 / 22
Dockyard

Search 600+ Docker/Portainer app templates and prepare a local deploy plan.

Developer ToolsCode & DevOps

Responded212 ms15 / 22
Helfer & Profi

Free German neighborhood marketplace: search local help requests and providers by postal code.

Developer ToolsCode & DevOps

Responded256 ms15 / 22
NPMScan

Detect malicious or vulnerable npm packages: registry search, OSV.dev and GitHub advisory lookups

Developer ToolsData access / search

Responded275 ms15 / 22
Vadivam Icons

Search 24px outline icons by name, tag, or category and get SVG or framework code.

Developer ToolsCode & DevOps

Responded309 ms15 / 22
EQVPS — VPS and code sandboxes for AI agents

No-KYC VPS + per-second code sandboxes AI agents run over MCP — 75 tools, SDK, pay BTC/XMR/USDC/USDT

Developer ToolsCode & DevOps

Responded361 ms15 / 22
Kennmarq.com

Rules and code for marking AI images, video and audio with C2PA and watermarks

MediaAI / LLM tooling

Responded387 ms15 / 22
Lacuna Music

Generate AI music via the Lacuna Music API from MCP clients like Claude Desktop & Code.

MediaCode & DevOps

Responded406 ms15 / 22
FactGrid (Renamed to FactReason)

Renamed to FactReason. Now published as io.github.factreason/factreason — please use that entry.

Developer ToolsCode & DevOps

Responded412 ms15 / 22
PromptGuard

Scan prompts for injection attacks, redact PII, and audit LLM SDK usage from any MCP client

Developer ToolsCode & DevOps

Responded412 ms15 / 22
Verse by A-to-Mind

Ask Verse anything with sources, plus code review, translation and more paid per call over x402.

Developer ToolsCode & DevOps

Responded417 ms15 / 22
Symvanta

Hosted code graph over MCP: exact callers, dependencies, and cross-repo blast radius for AI agents.

Developer ToolsCode & DevOps

Responded418 ms15 / 22
Research Methods Library

Research methods for AI assistants: study design guidance, R and Python code, and citations

Developer ToolsCode & DevOps

Responded477 ms15 / 22

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