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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18304 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
VirWave Breathe

Calm, animated breathing sessions paced to your breath. Runs locally and collects nothing.

Developer ToolsCode & DevOps

Responded443 ms15 / 22
FlowState Hosted

Hosted shared memory for AI apps: project decisions, to-dos and learnings. Beta.

Developer ToolsCode & DevOps

Outdated check443 ms15 / 22
Zenith Workspaces

Zenith Workspaces coworking in Tinton Falls, NJ: list rooms, check live availability, booking links.

Developer ToolsCode & DevOps

Responded449 ms15 / 22
Azuga MCP by usefulapi

Read driver scores, trips, driving events, vehicle locations and fault codes in Azuga.

Developer ToolsCode & DevOps

Responded451 ms15 / 22
Agent Blueprint

Measured agent costs, a one-page agent summary check, and an offline access map. No sign-in.

Developer ToolsCode & DevOps

Responded452 ms15 / 22
SQLGuard — Execution Certificate Firewall

Permission before writes. Gravity→DENYs→Session $0.25. Pilot $100; Gateway $299. Probe free.

Developer ToolsCode & DevOps

Outdated check452 ms15 / 22
Ringler

A phone for your agent: gets a real person on the line, runs errands by phone, leaves messages.

Developer ToolsCode & DevOps

Responded454 ms15 / 22
Chart Color System

Solve, audit and simulate colorblind-safe chart palettes. WCAG contrast, OKLab ΔE. Read-only.

Developer ToolsCode & DevOps

Responded455 ms15 / 22
PriorSeal

Bounded authorization and independently verifiable execution evidence for agents.

Developer ToolsCode & DevOps

Outdated check455 ms15 / 22
McpStamp Mileage Log

Log drives by purpose, apply your own dated rates, get deductible totals and a CSV for taxes.

Developer ToolsCode & DevOps

Responded456 ms15 / 22
True Value Rankings

Cryptocurrency fundamentals for agents: TVR Scores, rankings and model-derived valuation estimates.

Developer ToolsCode & DevOps

Outdated check456 ms15 / 22
AI Agents API Library

Find APIs and MCP servers for AI agents: auth, free tier, MCP endpoint, docs, last-checked date.

Developer ToolsCode & DevOps

Outdated check458 ms15 / 22
io.github.IsaiahDupree/storebridge-mcp

Remote MCP connector for App Store + Google Play data via StoreBridge API. No auth required.

Developer ToolsCode & DevOps

Responded459 ms15 / 22
io.github.physics-star-cat/databutler

Verified facts for AI agents: rates, exams, recalls, holidays, and what changed since your cutoff.

Developer ToolsCode & DevOps

Responded460 ms15 / 22
io.github.IsaiahDupree/devstack-mcp

Dev-registry data: npm/PyPI/Docker/VS Code packages, dep graphs, vulns, 50+ ecosystems.

Developer ToolsCode & DevOps

Responded460 ms15 / 22
ai.sitepulsar/mcp

SitePulsar AEO audits: fetch FIND/READ/USE agent-readiness scores for any website.

Developer ToolsCode & DevOps

Responded460 ms15 / 22
Citehound

Scan any domain for AI readiness and generate llms.txt, robots.txt and schema. Free, read-only.

Developer ToolsCode & DevOps

Outdated check461 ms15 / 22
McpStamp Petty Cash

Run a petty cash float: numbered vouchers, cash counts, over and short, replenishment amounts.

Developer ToolsCode & DevOps

Responded462 ms15 / 22
dompruner-mcp

Strips layout noise via DOM AST; with a query, BM25 filters to relevant sections. No model or API.

Developer ToolsCode & DevOps

Outdated check464 ms15 / 22
Patina

Check how many years of verifiable history a person has behind accounts they already own.

Developer ToolsCode & DevOps

Responded465 ms15 / 22
Aspicio

DXF and PDF/X-4 for AI agents: structured facts, PNG renders, an interactive in-chat viewer.

Developer ToolsCode & DevOps

Outdated check466 ms15 / 22
TechFabric

Write TechFabric posts from your agent. Walk through posts, compare studies, check readiness.

Developer ToolsCode & DevOps

Outdated check466 ms15 / 22
io.github.gblinproject/gblin-treasury-risk-regime

GBLIN on Base for AI agents: risk regime, treasury plan for idle USDC, mint and redeem at NAV. Free.

Developer ToolsCode & DevOps

Responded467 ms15 / 22
CSS Crème

Give your agent a real design system: tokens, measured WCAG contrast, and rules to follow.

Developer ToolsCode & DevOps

Outdated check467 ms15 / 22

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