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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7422 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
guide.farmleader/guide-registry

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

OtherOther

Responded991 ms15 / 22
Vocenya Docs

Read-only search over the Vocenya AI receptionist API docs and endpoints, with code samples.

OtherData access / search

Outdated check998 ms15 / 22
HerStack

Read-only UK women's midlife health guidance: search, PubMed-backed evidence, supplement picks.

OtherData access / search

Responded1002 ms15 / 22
Wraps

Search the Wraps docs and estimate AWS SES costs. Public, read-only, no authentication.

OtherData access / search

Outdated check1007 ms15 / 22
Mode VC Investor Atlas: 3,650+ VC Firms & 13,000+ Partners

Search 3,650+ institutional venture capital firms and 13,000+ partners by stage, sector, and HQ.

OtherData access / search

Outdated check1008 ms15 / 22
Adoteca — Adoção de Pets no Brasil

Cães e gatos para adoção no Brasil, de ONGs e protetores. Busque por cidade, porte, idade e saúde.

OtherOther

Outdated check1030 ms15 / 22
CMD+RVL Receipts

Check claims against current public CMBS filings and NPORT-P coupons, with citations.

OtherKnowledge & memory

Outdated check1056 ms15 / 22
PayPerFax

Your AI assistant prepares the fax. You check it and pay in your browser. Pay per fax. No account.

OtherOther

Outdated check1085 ms15 / 22
WithBy

Washington's mountain passes, checked every few minutes, and stories about places along the road.

OtherOther

Outdated check1091 ms15 / 22
lovefengis

Services and prices of lovefengis, a remote digital agency serving Turkey. Read-only, no auth.

OtherOther

Outdated check1092 ms15 / 22
TaskRail

Delivered-price deals, cancel/refund paths, used-value comparisons, and compatibility checks.

OtherPayments & trading

Outdated check1094 ms15 / 22
ANKUSI Wheel Fitment

Bolt pattern, center bore, OE wheel size and offset for about 10,000 vehicles. Free, no API key.

OtherOther

Outdated check1096 ms15 / 22
Vocenya Site

Read-only answers from vocenya.com: plans and prices, products, industries, locations, guides.

OtherOther

Outdated check1100 ms15 / 22
Barcode Generator

Generate barcodes and QR codes in 35 symbologies: QR, Data Matrix, PDF417, EAN-13, Code 128, more.

OtherAI / LLM tooling

Responded1103 ms15 / 22
online.pageaudit/pageaudit

Audit pages and external dependencies. Free inventories; paid watches with dated change evidence.

OtherOther

Responded1123 ms15 / 22
com.editalmd/editalmd

Read tender requirements with page evidence. Free search and examples; paid processed documents.

OtherFile & docs

Responded1145 ms15 / 22
Most-Famous-Paintings Masterpiece Guide

Famous paintings: Mona Lisa, Starry Night. Their story, their museum, a reproduction price.

OtherData access / search

Responded1185 ms15 / 22
OriginalUniqueArt Original Art for Sale

Original art for sale: one-of-a-kind paintings by exclusive artists, with price and availability.

OtherData access / search

Responded1194 ms15 / 22
ArtsDot Art Discovery & Prices

Discover art by mood, colour or artist, and get the price of a canvas print or oil painting.

OtherData access / search

Responded1206 ms15 / 22
Buzzedin

Find NYC rental apartments by budget, neighborhood, commute and amenities, with deal scores.

OtherOther

Outdated check1208 ms15 / 22
Santismm Knowledge — Harness Engineering, Agentic AI & Governance

Query AI knowledge, essays, Labs, benchmarks, Physical AI robotics, Homeric data and claims.

OtherOther

Outdated check1216 ms15 / 22
SuliHuli EV catalog

Electric-vehicle specs, prices, rankings and comparisons; every figure with its source and date.

OtherOther

Outdated check1223 ms15 / 22
Programscape

Startup credits, programs and perks from checked sources, with saved plans and reported balances.

OtherOther

Outdated check1235 ms15 / 22
Levels.fyi

Salary, level and job data from 1M+ pay reports. Benchmark pay, evaluate offers, search open jobs.

OtherData access / search

Outdated check1251 ms15 / 22

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