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

4697 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
Invoice by Ouroboros Apps

Freelance invoice line items, rates, due dates, and late terms for AI assistants

Finance & CryptoPayments & trading

Outdated check457 ms14 / 22
Supercycle

AI buildout stocks: AI Exposure Scores, Fear & Greed, capex, AI agents' paper portfolios

Finance & CryptoPayments & trading

Responded458 ms14 / 22
Agent Anthill

Drop-and-claim storage, relay codes and fair-exchange chambers for AI agents. Pay per use in USDC.

Finance & CryptoPayments & trading

Responded458 ms14 / 22
Glide — wallets and US banking

Instant Base + Solana wallets, free and x402-payable. US bank account after a 2-min check.

Finance & CryptoPayments & trading

Responded459 ms14 / 22
Duck Tax

Check micro-entity company accounts: raw figures in, validated balance sheet and deadlines out.

Finance & CryptoPayments & trading

Responded461 ms14 / 22
Doviandi Cyprus corporate and tax

Reviewed Cyprus corporate and tax facts, statutory tests, and company register search.

Finance & CryptoData access / search

Responded464 ms14 / 22
PayRam

Install, configure, operate and integrate self-hosted PayRam crypto payment gateways.

Finance & CryptoPayments & trading

Outdated check465 ms14 / 22
API Change Feed

Breaking changes, deprecations and security fixes for 38 popular APIs/SDKs. Paid per call via x402.

Finance & CryptoPayments & trading

Responded466 ms14 / 22
io.github.koreal6803/finlab-ai

Quantitative trading toolkit with 900+ data columns, backtesting, and 60+ strategy examples.

Finance & CryptoPayments & trading

Responded472 ms14 / 22
Carry Console — MCP App

Read-only visual Hyperliquid carry scan via MCP Apps and x402 v2 Solana USDC.

Finance & CryptoPayments & trading

Responded472 ms14 / 22
Obento

Live USDC rates on Base, any address's Obento position, and deposits and withdrawals to sign.

Finance & CryptoPayments & trading

Responded478 ms14 / 22
Jock Taxes for ChatGPT

Pro athlete after-tax salary calculators for MLB, NBA, NFL and NHL, built for ChatGPT.

Finance & CryptoAI / LLM tooling

Responded482 ms14 / 22
x402 Precheck

Check an x402 payment challenge before your agent pays: network, USDC, amount, payTo, facilitator.

Finance & CryptoPayments & trading

Responded486 ms14 / 22
Solana Cleanup

Read-only Solana and crypto reserve-recovery scans, pricing, chain facts, and methodology.

Finance & CryptoPayments & trading

Responded488 ms14 / 22
Cryptowisser News

Latest crypto news, stories and articles from Cryptowisser, with news cards linking to full stories.

Finance & CryptoPayments & trading

Responded492 ms14 / 22
fAlpha

Explainable model signals, drivers, news sentiment, SEC filings and macro data for US stocks.

Finance & CryptoPayments & trading

Responded494 ms14 / 22
Ripey

Let your agent open a store, list digital products and share USDC checkout links. Test mode.

Finance & CryptoPayments & trading

Responded496 ms14 / 22
Quidli Connect

Resolve social handles to wallets, score onchain reputation, pay in any ERC-20, SPL or native.

Finance & CryptoPayments & trading

Outdated check509 ms14 / 22
Ironflow: Hyperliquid data

Hyperliquid data and liquidation alerts for AI agents: fills, candles, funding, wallet analytics.

Finance & CryptoPayments & trading

Outdated check509 ms14 / 22
Penniless Data Utilities

Ten x402-paid tools for JSON, YAML, cron, diff, text, DNS, WHOIS, GitHub, crypto, and email.

Finance & CryptoCommunication & messaging

Outdated check513 ms14 / 22
codes.find/verified-codes

Verified discount & referral codes for crypto exchanges, cards and more — tested first-hand.

Finance & CryptoPayments & trading

Responded515 ms14 / 22
Builders in Fintech

Fintech companies, products, rounds, investors, news, Agent-Ready scores. Free, keyless, CC BY 4.0.

Finance & CryptoPayments & trading

Responded517 ms14 / 22
NodeProxy Web Surface Markdown Parser

x402 MCP web parser: URLs to Markdown for agents. USDC on Base, Polygon, Arbitrum, Ethereum.

Finance & CryptoPayments & trading

Outdated check519 ms14 / 22
AUN — Agent Upgrade Network

Audit AI agents' tool calls, planning and memory; Base on-chain data; pay per call via x402.

Finance & CryptoKnowledge & memory

Responded524 ms14 / 22

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