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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7625 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
Flowie

Ask about Flowie: invoicing in 150 countries via Sovos, order-to-cash, procure-to-pay, SRM.

OtherOther

Responded153 ms14 / 22
Lynta Public Documentation

Search and read Lynta's public documentation.

OtherFile & docs

Responded154 ms14 / 22
eBilanz Fabrik

E-Bilanz and Offenlegung for small German GmbH/UG: products, prices, eligibility.

OtherOther

Responded155 ms14 / 22
Tjaz

Make, find and share multiple-choice quizzes that people play on tjaz.com, alone or together

OtherOther

Responded155 ms14 / 22
Craftery Developer Tools

Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing.

OtherOther

Responded156 ms14 / 22
AITeamGuide AI agent prices

Read-only lookups of public AI agent pricing, free plans and source links. No API key.

OtherData access / search

Responded156 ms14 / 22
Austin Volts — book electrician in Austin

Book electrician in Austin, TX: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded157 ms14 / 22
Fluentoo TOEIC

Préparation au TOEIC : score et niveau CECRL, format des 7 parties, guides et test gratuit.

OtherOther

Responded158 ms14 / 22
Referral Flooring

Referral Flooring, Hamilton ON flooring installer: business facts, site search, quote requests.

OtherData access / search

Responded158 ms14 / 22
Dinero en la Mesa — Perp DEX costs & funding

Dinero en la Mesa: live all-in cost (fees + slippage) and funding on 28 perp DEXs. Free, read-only.

OtherOther

Responded158 ms14 / 22
Picksly

Best phone, tablet, laptop or smartwatch for your profile and budget: lab scores, live prices.

OtherOther

Responded159 ms14 / 22
Tulsa Weld Guy — book mobile welding in Tulsa

Book mobile welding in Tulsa, OK: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded159 ms14 / 22
Before the Lot

Car-buying math and state rules: out-the-door prices, quote checks, leases and trade-ins

OtherOther

Responded159 ms14 / 22
AgentGid

Catalog for building with AI agents: tools, APIs, licensed assets, prices and history, recipes.

OtherAI / LLM tooling

Responded159 ms14 / 22
Fortitude21 Dangerous Goods and Packaging Tools

Dangerous goods packaging calculators plus search and quote tools for Fortitude21's container range

OtherData access / search

Responded160 ms14 / 22
Motif & Moi

Custom clothing printed in Rennes, France: catalog, quotes, delivery dates, prefilled order links.

OtherOther

Responded161 ms14 / 22
Miss Yera: IA para empresas

IA para empresas y cursos de Miss Yera, y su kit para conseguir clientes, cobrar, datos y talleres.

OtherOther

Responded161 ms14 / 22
DeducePuzzles

Daily verified seating and arrangement logic puzzle for IBPS, SBI and SSC reasoning practice.

OtherOther

Responded161 ms14 / 22
4ai – premium .ai domains for sale

Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.

OtherData access / search

Responded161 ms14 / 22
CarteleraCines.es

Cartelera de España: películas, cines, sesiones, recomendaciones y enlaces de compra.

OtherOther

Outdated check161 ms14 / 22
GraphChinese: Chinese dictionary and grammar

Chinese dictionary (124k entries), HSK levels, text segmentation and 195 grammar points.

OtherOther

Responded162 ms14 / 22
Nashville Gutter Guards Co — book gutter guard installation in Nashville

Book gutter guard installation in Nashville, TN: prices, ZIP coverage, free callback.

OtherOther

Responded164 ms14 / 22
Wellemo — online tests and quizzes

Create online knowledge tests and quizzes, share a link, see results. Search ready-made tests.

OtherData access / search

Responded165 ms14 / 22
Friction

Sourced pain points and feature requests of B2B software users, read-only, with source links.

OtherOther

Responded165 ms14 / 22

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