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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7383 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
stierproducts tier lists

S-to-F tier lists for 208 product categories. Every placement cited, with barcodes.

OtherOther

Outdated check377 ms15 / 22
Próceres · escritos judiciales de España: papeleta, demanda y recursos

Redacta papeleta, demanda y recursos de España con los preceptos del BOE. Sin datos personales.

OtherOther

Outdated check389 ms15 / 22
Sunrise & Sunset Times

Sunrise, sunset, twilight, golden hour and moon times for any place on Earth. Free, no API key.

OtherOther

Responded407 ms15 / 22
Leonida Lab: GTA 6 facts, official or not

Unofficial GTA 6 facts tagged official or reported. Not affiliated with Rockstar Games or Take-Two.

OtherOther

Outdated check412 ms15 / 22
Crosswire — Polymarket & Kalshi Arbitrage

Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.

OtherOther

Outdated check413 ms15 / 22
HouseData

UK property data: EPC, flood risk, planning, sale prices, MEES 2030 checks and grants.

OtherOther

Responded414 ms15 / 22
OODS Foundry

OODS Foundry is an object-oriented design system that extends the one you already have.

OtherOther

Outdated check434 ms15 / 22
NegativeEV bet checker

Grade any MLB, WNBA, PGA or ATP bet against thousands of play-by-play sims. No key, no signup.

OtherOther

Outdated check440 ms15 / 22
The Living Bread

Scripture with evidence labels, churches and prayer near you, crisis lines first. Jesus is Lord.

OtherOther

Responded443 ms15 / 22
WCS Points

West Coast Swing WSDC points registry: dancer points, divisions, level-ups, event results and rules.

OtherOther

Outdated check448 ms15 / 22
Easy Scribe

Turn screen recordings into step-by-step guides, SOPs, tutorials and user docs with screenshots.

OtherOther

Outdated check461 ms15 / 22
Asian Recs

SF and NYC restaurants, cafes, desserts and bars ranked by how Asian diners rate them.

OtherOther

Outdated check467 ms15 / 22
TempGuru Event Staffing

W-2 staffing: 300+ U.S. and Canadian markets, 5,000+ events, 100,000+ completed shifts.

OtherOther

Outdated check470 ms15 / 22
Soundcheck Live Event Quotes

Price any live event: parties, weddings, conferences, concerts. Instant estimates, no login.

OtherOther

Responded471 ms15 / 22
Car Repair Cost Estimator

Car repair cost estimates by make, model and repair type. 31 cost guides, VIN decode. Free.

OtherOther

Outdated check475 ms15 / 22
American Default Research

Read-only U.S. household-finance research: economic indicators, county scores, ADI and citations.

OtherKnowledge & memory

Responded478 ms15 / 22
Mahonia

Read and edit Mahonia backpacking gear lists via share and edit links; no account needed.

OtherOther

Outdated check480 ms15 / 22
Chalet-Montagne.com

Search French mountain holiday rentals and contact owners directly — commission-free.

OtherData access / search

Outdated check481 ms15 / 22
Asked Thrice

Measure whether AI assistants actually recommend a brand, from measured answers.

OtherOther

Outdated check481 ms15 / 22
Nearby Permits

Building permits by address for a growing list of US cities and counties, from city open data.

OtherOther

Outdated check486 ms15 / 22
내만집 (nmjib) — Korean semi-self interior renovation

Korean semi-self interior renovation data: process order, schedules, checklists, cost ranges.

OtherOther

Outdated check492 ms15 / 22
nittim

Production-safety audits for AI-generated code, with a fix for every finding.

OtherOther

Outdated check494 ms15 / 22
Unified Reading

Life Path number, Sun sign and Chinese zodiac for a birth date, plus Lunar New Year lookups.

OtherData access / search

Outdated check497 ms15 / 22
Criora climate risk

Climate and disaster risk for any place or trip: forecasts, warnings, floods, quakes, countries, map

OtherOther

Outdated check500 ms15 / 22

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