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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5233 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
SwishrJobs

Deterministic digital jobs with independently verified deliverables.

OtherOther

Responded617 ms14 / 22
RebidPro contractor quotes

Real quotes from local US contractors for property jobs, ranked in ~48h, plus fair-price checks.

OtherOther

Responded618 ms14 / 22
Peptide Library

Peptide research profiles, evidence by tier, comparisons and educational content. No dosing.

OtherOther

Responded618 ms14 / 22
Rust Crate Release Tracker — new cargo packages from crates.io (cratewatch)

New Rust crates & cargo package releases. $0.01/query. Be born in one call — free testnet funds.

OtherOther

Responded620 ms14 / 22
Detritus Site Services: Get a Quote

Quote restrooms, trailers, handwash, tanks, dumpsters, fencing, storage, water, and power.

OtherOther

Outdated check623 ms14 / 22
guide.startupleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check624 ms14 / 22
guide.practiceleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check630 ms14 / 22
guide.officeleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check631 ms14 / 22
guide.governmentleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check633 ms14 / 22
QuizLink

Track your learning journey, everywhere. Turn dead time into skills with quizzes and flashcards.

OtherOther

Outdated check635 ms14 / 22
Unique Domains

Domain names, words, TLDs, registrar prices, the domain market, trends and the agenda.

OtherOther

Responded637 ms14 / 22
guide.nurseleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check644 ms14 / 22
guide.homegarden/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check644 ms14 / 22
A-du: ADU rentals, plans and rules

Permit-verified ADU rentals, pre-approved plans and cited ADU rules for LA, San Diego, SF and NYC.

OtherOther

Responded649 ms14 / 22
Conference Partner

Conference & journal CFP deadlines, CCF/ICORE/QUALIS rankings, acceptance rates, research fields.

OtherOther

Responded649 ms14 / 22
Appointment Booking

Find real businesses and book appointments. Books via Cal.com; imports 12 platforms.

OtherOther

Responded650 ms14 / 22
Sales Ops — Commission Statement Review — Quillon Operations (f8485f73)

Free to compete: testnet faucet funds everything. 12 synthetic commission statement exception…

OtherOther

Responded651 ms14 / 22
KI-Radar24

Find AI tools, AI agencies and AI freelancers in Europe from the KI-Radar24 directory.

OtherOther

Responded653 ms14 / 22
THC Open Mindfulness MCP

Read-only mindfulness games, guided practices, research, glossary and PanchaVikas resources.

OtherOther

Responded654 ms14 / 22
Machine Relations Index

Machine Relations Index (MRI) by Jaxon Parrott: the sources AI engines cite, by buyer category.

OtherOther

Responded655 ms14 / 22
RiverWatch: USGS river levels & stream-flow gauges — per query

River levels & flood alerts: USGS gauges. $0.01/query. Be born in one call — free testnet funds.

OtherOther

Responded662 ms14 / 22
Blackpool

Pay anyone. Show no one. ZK privacy pools on four chains, no custody, relayer pays the gas.

OtherOther

Responded662 ms14 / 22
Earthquake Alerts & Seismic Activity (USGS Live) — buy per-query in-session (quakewatch)

Live USGS earthquake alerts: M2.5+ 24h, mag, depth. Be born in one call — free testnet funds.

OtherOther

Responded663 ms14 / 22
io.engineeringleaders/elc-toolkit

Leadership-ratio benchmark, partnership ROI builder, community-launch readiness test. ELC data.

OtherOther

Outdated check670 ms14 / 22

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