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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619 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
io.github.lazymac2x/api-composition-gateway

Cloudflare Workers MCP server: api-composition-gateway

Developer ToolsCode & DevOps

Outdated check313 ms11 / 22
Outdated check330 ms11 / 22
io.github.lazymac2x/api-contract-validator

Cloudflare Workers MCP server: api-contract-validator

LegalCode & DevOps

Outdated check351 ms11 / 22
Bulk B2B Email Verifier — DNS MX, Disposable & Catch-All Check

Bulk verify B2B emails via Cloudflare DNS MX, SPF/DMARC, disposable check & 0-99 catch-all score.

Developer ToolsCommunication & messaging

Outdated check519 ms11 / 22
Google Maps & Website Contact Enricher — Emails, Socials & Tech

Enrich Google Maps businesses & domains with emails, phones, socials, tech stack & DNS MX records.

Developer ToolsBrowser & web scraping

Outdated check523 ms11 / 22
ドメイン番人

ドメインの設定を調べる MCP サーバー。SPF / DKIM / DMARC・DNS・SSL 証明書・セキュリティヘッダ・サブドメイン・類似ドメインを、公開情報だけで確認します。登録不要・無料。

Developer ToolsCode & DevOps

Outdated check602 ms11 / 22
cc.aiones/dev-toolbox

开发者工具箱:时间/UUID/Base64/JSON 格式化等高频开发小工具(Cloudflare 边缘部署,免费)

OtherOther

Outdated check82 ms10 / 22
Platform Changes

Live, sourced changes feed: Apple, Google Play, Android, GitHub, Vercel, Cloudflare, Firebase, more.

Developer ToolsCode & DevOps

Outdated check106 ms10 / 22
xOmniMarket

Search AI capabilities across AWS Marketplace and the Official MCP Registry.

Developer ToolsCode & DevOps

Outdated check161 ms10 / 22
USGS Water Monitoring

Real-time water levels and flow rates from USGS stream gauges

OtherMonitoring & observability

Outdated check531 ms10 / 22
Outdated check52 ms10 / 22
io.github.f-tiger/verified-ai-free-tiers

Verified AI free tiers plus source-backed agent and MCP discovery monitoring.

Developer ToolsMonitoring & observability

Outdated check197 ms10 / 22
Outdated check475 ms10 / 22
CloudShiftAI

Plan a move from AWS, GCP or Azure to Hetzner, DigitalOcean or Vultr with a cost report and draft ru

OtherOther

Outdated check539 ms10 / 22
FAIE

Evidence-first food-infrastructure and resilience intelligence on owned Evercraft Fabric.

Developer ToolsCode & DevOps

Outdated check657 ms10 / 22
Ecosystem Monitor

Ecosystem monitoring: service status and x402 activity metrics

Data & AnalyticsMonitoring & observability

Outdated check683 ms10 / 22
io.github.nach-dakwale/instadomain

Domain registration for AI agents via Stripe or x402 crypto with Cloudflare DNS.

Finance & CryptoPayments & trading

Outdated check945 ms9 / 22
Kloudle Cloud Security Scanner

AWS cloud security scanners for AI agents — S3, IAM, EC2, EKS, RDS, CloudTrail, CloudWatch Logs

Developer ToolsCode & DevOps

Outdated check51 ms9 / 22
GadgetHumans API Hub

236 MCP tools free (rate-limited): token safety, OCR, DNS, 228 x402 routes. No key.

Finance & CryptoPayments & trading

Outdated check74 ms9 / 22
Kai CSV Profiler and Domain Watch Intake

Bounded CSV profiling plus review-only host monitoring requests through one remote MCP endpoint.

Developer ToolsMonitoring & observability

Outdated check474 ms9 / 22
ai.getvda/dynamic-health-monitor

Give it one seed; it finds every service and checks HTTP, TCP, SSL and DNS.

Developer ToolsCode & DevOps

Outdated check505 ms9 / 22
Lockout-Tagout for agent infrastructure

Personal-lock maintenance isolation for agent infrastructure: hasp-quorum refusal + try-start proof.

Developer ToolsCode & DevOps

Outdated check552 ms9 / 22
io.tooloracle/driftoracle

DriftOracle - 15 tools for model/data drift monitoring: PSI, KS-test, alerts, evidence packs.

OtherMonitoring & observability

Outdated check86 ms8 / 22
io.tooloracle/cloudoracle

CloudOracle - 14-tool multi-cloud compliance MCP: AWS, Azure, GCP posture, IAM, configs.

Developer ToolsCode & DevOps

Outdated check88 ms8 / 22

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