MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

40673 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
Arc & Ledger Tax Reference

Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.

Finance & CryptoPayments & trading

Responded79 ms15 / 22
Web Search API Eval

Web search API benchmark for AI agents: You.com, Tavily, Exa, Parallel. Results and charts.

Developer ToolsData access / search

Responded80 ms15 / 22
EcoAloha

Search and compare outdoor experiences. Public keyless API; booking and payment happen on Viator.

Finance & CryptoPayments & trading

Responded80 ms15 / 22
nAIm — API Registry for Agents

316 AI APIs searchable by shared failure domain, freshness and agent-sourced ratings.

Developer ToolsCode & DevOps

Responded80 ms15 / 22
Termcard

Create terminal business cards (npx <name>) in a chat, or look up anyone's card.

Developer ToolsData access / search

Responded80 ms15 / 22
SMKlog Parcel Shipping Rates

Live USPS, UPS, FedEx and DHL rates from the US: domestic, Canada, UK, Germany, Australia. No scale.

OtherOther

Responded80 ms15 / 22
MassageInChina — Authentic TCM Tuina, Acupressure Points & Bilingual Clinic Phrasebook

Look up Traditional Chinese Medicine (TCM) Tuina massage styles, meridian acupoints & phrases.

HealthcareData access / search

Responded80 ms15 / 22
Echo UI

A tactile React component library, and the design system that keeps your AI agent on-brand.

Developer ToolsCode & DevOps

Responded80 ms15 / 22
cloo.be: ofertas do Brasil

Ofertas das principais lojas online do Brasil: busca, em alta, categorias e cupons.

OtherOther

Responded80 ms15 / 22
OpenCidian: open Chinese ↔ Vietnamese dictionary (Hán Việt, pinyin, character breakdown)

Open Chinese-Vietnamese dictionary by Perxel: Hán Việt, pinyin, meanings, characters. Cited.

Developer ToolsCode & DevOps

Responded81 ms15 / 22
NanoParse

Clean Markdown from any URL with Litmus trust signals. $0.005 per page via x402, no account.

Developer ToolsFile & docs

Responded81 ms15 / 22
ERP Facts

Sourced, dated ERP facts: Odoo 20 changes, support deadlines, prices, e-invoicing status.

OtherOther

Responded81 ms15 / 22
Oh My Share

Publish HTML/code from your agent to openanthropic.com and get a shareable link.

Developer ToolsCode & DevOps

Responded81 ms15 / 22
Bhasini Indic Languages

Indic MCP: transliterate into all 22 Indian languages, convert scripts, keymaps. Hosted or local.

Developer ToolsCode & DevOps

Responded82 ms15 / 22
OAIA Arena

Score AI trading agents against 2,048 coin-flipping monkeys. Public leaderboard.

Finance & CryptoPayments & trading

Responded82 ms15 / 22
Cleave for Agents: token swaps, cross-chain swaps and gas top-ups

Swap, bridge and get gas on 6 EVM chains. Each plan states its outcome before you sign. No API key.

Developer ToolsCode & DevOps

Responded82 ms15 / 22
Point (Tetra M Labs)

Read-only MCP server for Point (Tetra M Labs): demo ledger, trial balance, partners.

Finance & CryptoPayments & trading

Responded82 ms15 / 22
FreshContext

Context integrity for AI agents: evaluate freshness, confidence, provenance, and decision readiness.

Developer ToolsCode & DevOps

Responded83 ms15 / 22
Good Turn Studio (all tools)

All 27 Good Turn Studio helpers in one server: money, health, jobs, travel, art, halal, scripture.

TravelCode & DevOps

Responded83 ms15 / 22
Nightshift Labs: link, token & signature pre-checks

Paid x402 pre-checks for agents: phishing links, Base tokens, EIP-712 permits, calldata, DNS.

Finance & CryptoPayments & trading

Responded83 ms15 / 22
Model Tested

Independent test scores for open-weight LLMs: best model for your GPU or Mac, comparisons.

Developer ToolsAI / LLM tooling

Responded83 ms15 / 22
Solana Token Intelligence

Solana token due-diligence: 3-source fused risk verdict incl. LP-lock depth. $0.01 via x402.

Finance & CryptoPayments & trading

Responded84 ms15 / 22
getticker: the Ticker door

The issuer behind a ticker: ISIN, LEI, listing and status, from the record: signed and receipted.

Finance & CryptoPayments & trading

Responded84 ms15 / 22
getfilings: the Filings door

The disclosures of an issuer in a date range, from the record: signed and receipted (RCO-10060).

Developer ToolsCode & DevOps

Responded84 ms15 / 22

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