MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

Directory · Best Payments & trading

Payments & trading

Function. Move money or read a market. 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
Agentgates Compute

Confidential computers for AI swarms: sealed VMs (Intel TDX) by the hour, USDC over x402.

Finance & CryptoPayments & trading

Responded514 ms16 / 22
DABLOCK AI Visibility Index

Measured share of answer for 24 crypto and Web3 brands. An open dataset, not an audit of your site.

Finance & CryptoPayments & trading

Responded810 ms16 / 22
Bankrolled.ai Agent Hub

Free, sourced deposit-insurance/savings/retirement limits. US, UK, CA, AU, NZ. No key, no payment.

Finance & CryptoPayments & trading

Responded6111 ms16 / 22
Quarterly Tax Calculator

US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.

Finance & CryptoPayments & trading

Responded57 ms15 / 22
402cron

Paid cron for AI agents: we call your https URL on schedule, signed. No account, paid with x402.

Finance & CryptoPayments & trading

Responded58 ms15 / 22
X402-Broker Universal MCP Gateway & Multi-Agent Swarm Router

Single-connection MCP gateway discovering and executing 490+ verified MCP & A2A tools.

Finance & CryptoPayments & trading

Responded59 ms15 / 22
TradeTi.me — Market Hours

Read-only trading hours for 30 stock exchanges — open now, next open, holidays, sessions.

Finance & CryptoPayments & trading

Responded62 ms15 / 22
Cancel My Sub

How to cancel US and UK subscriptions, the last safe day to cancel, and what a card charge is.

Developer ToolsPayments & trading

Responded64 ms15 / 22
JIDEC: Bitcoin-anchored public verification ledger (NENRIN)

Read Bitcoin-anchored conduct history (NENRIN), admissions and daily check roots; cite records.

Finance & CryptoPayments & trading

Responded65 ms15 / 22
The Bitcoin Rainbow

Explains the Bitcoin rainbow valuation chart and where price sits in the cycle today.

Finance & CryptoPayments & trading

Responded65 ms15 / 22
Company Facts

Company data from official sources, plus a finder for the best paid x402 API for any task.

Finance & CryptoPayments & trading

Responded67 ms15 / 22
Faxwell

Fax any US or Canada number, as low as 6¢ a page. No subscription, no account needed first.

OtherPayments & trading

Responded67 ms15 / 22
IoMarkets Topup (demo)

Demo only, payments switched off. Travel eSIMs and mobile top-ups priced in USDC via x402.

Finance & CryptoPayments & trading

Responded67 ms15 / 22
Bilbop x402

Pay-per-call summarize, Solana data, TTS, and brand feedback via api.bilbop.org.

Finance & CryptoPayments & trading

Responded70 ms15 / 22
DevX Multichain Balances

Balances on 7 EVM chains, Solana, Tron: free one-chain lookup; full call 0.002 USDC via x402.

Finance & CryptoPayments & trading

Responded78 ms15 / 22
7702 Sweeper Check

Free read-only EIP-7702 delegation / wallet-sweeper check for EVM addresses on 8 chains

Finance & CryptoPayments & trading

Responded78 ms15 / 22
Arabic Pipeline API

Pay-per-call Arabic text, audio and document utilities over x402. USDC on Base, no API key.

Finance & CryptoPayments & trading

Responded79 ms15 / 22
ACM-68000 signals for listed issuers

The ACM-68000 signal of a listed security in its home market: trading, not listed, read the filing.

Finance & CryptoPayments & trading

Responded79 ms15 / 22
Arc & Ledger Tax Reference

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

Finance & CryptoPayments & trading

Responded79 ms15 / 22
EcoAloha

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

Finance & CryptoPayments & trading

Responded80 ms15 / 22
OAIA Arena

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

Finance & CryptoPayments & trading

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
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
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