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.

Connect your agent

40680 servers

Ordered by checks passed
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
Estate and Gift Tax Exemption Calculator

2026 US estate and gift tax: $15M exemption (P.L. 119-21), 40% rates, annual exclusion, DSUE.

Developer ToolsCode & DevOps

Responded276 ms15 / 22
TakeMeUp.cv – CV & Resume Builder

CV & resume builder: country formats in 14 languages, ATS checks, cover letters, job tracker.

ProductivityFile & docs

Responded276 ms15 / 22
Vocaneo

French job profiles, RNCP diplomas and 135,000 training programs. Read-only, no account.

OtherOther

Responded276 ms15 / 22
Agent Stack Directory

Search, inspect and compare infrastructure tools for AI agents from a checked directory.

Developer ToolsData access / search

Outdated check276 ms15 / 22
Silver Price Per Gram MCP

Live silver price per gram by fineness and currency, junk silver coin value, gold silver ratio.

Finance & CryptoCode & DevOps

Responded277 ms15 / 22
ACA Premium Tax Credit Calculator

2026 ACA premium tax credit: expired enhanced subsidy, 400% FPL cliff, FPL, APTC repayment rules.

Developer ToolsCode & DevOps

Responded278 ms15 / 22
Bitview

Read-only Bitcoin blockchain, mempool, mining, market, and on-chain analytics; no API key.

Finance & CryptoPayments & trading

Responded278 ms15 / 22
GospelChannel Church Finder

Find a Christian church by worship style, denomination, language, and location. Read-only.

Developer ToolsCode & DevOps

Responded278 ms15 / 22
AI Design Blueprint

Doctrine and validators for governable agentic AI products.

OtherOther

Outdated check278 ms15 / 22
IndustryLens

B2B SaaS competitor pricing changes, strategic moves, market landscapes, reports and comparisons.

Developer ToolsCode & DevOps

Outdated check279 ms15 / 22
UK Income Tax and Salary

UK income tax and take-home pay 2025/26 and 2026/27: Scottish bands, NI, student loans, 60% trap.

EducationCode & DevOps

Responded280 ms15 / 22
aipozi

Daily AI visibility: who ChatGPT, Claude, Gemini and Perplexity name instead of you. Domain tools.

OtherAI / LLM tooling

Outdated check280 ms15 / 22
Arcadia Finance

Concentrated liquidity on Uniswap/Aero (rebalance, compound, leverage) or single-sided lending.

Developer ToolsCode & DevOps

Responded281 ms15 / 22
MachineWitness

EU archive of the machine-readable web: check a domain, order a time-stamped record or extract.

OtherOther

Responded283 ms15 / 22
Databricks Field Guide by TechFabric

Interactive Databricks learning, certification practice and sourced engineering guidance.

OtherOther

Responded285 ms15 / 22
DrinkedIn Night Out

Plans walkable 2-4 stop nights out between officially validated venues. No sign-in.

Developer ToolsCode & DevOps

Responded287 ms15 / 22
Dubai Diligence

Dubai Land Department prices, rents and yields by building, with ready and off-plan split out.

Developer ToolsCode & DevOps

Responded288 ms15 / 22
JustFix Estimator

Quote UK trades jobs from any AI agent. Price breakdown + tappable booking link.

Developer ToolsCode & DevOps

Responded288 ms15 / 22
Canli Capital

443 finance tools, 60 prompts: quant, SEC and EU filings, fact checks, rates, odds, DeFi, macro.

Developer ToolsCode & DevOps

Responded288 ms15 / 22
Dyscalculia.io

Open number-sense practice data and game catalogue for dyscalculia. Read-only.

OtherOther

Responded289 ms15 / 22
FiatDock

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

Finance & CryptoPayments & trading

Outdated check289 ms15 / 22
Duo Data Utilities: IBAN, VAT, ISIN Validation API

IBAN, ISIN, VAT/tax ID, GTIN validation; timezone, geo, text, chain utilities. Pay per call

Finance & CryptoPayments & trading

Outdated check289 ms15 / 22
Hovercode

Create and manage QR codes, short links, landing pages, and forms in your Hovercode workspace.

Developer ToolsCode & DevOps

Outdated check290 ms15 / 22
Ahel

Data and tools for your AI agent: company, people, SEO, social and EU register data. Pay per call.

Marketing & SalesData access / search

Outdated check291 ms15 / 22

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