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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4101 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
Actora Platform — Agent Publishing, Subscriptions & A2A

Actora developer tools: ERC-8004 identity, subscriptions, listings, A2A, reputation.

Developer ToolsPayments & trading

Responded1173 ms14 / 22
Covalent

Covalent / GoldRush MCP — unified wallet balances + transactions across 100+ chains (goldrush.dev…

Finance & CryptoPayments & trading

Outdated check6136 ms14 / 22
Bitquery

Bitquery MCP — trade-level blockchain data (DEX trades, transfers, holders) across 40+ chains via…

Finance & CryptoPayments & trading

Outdated check6156 ms14 / 22
Cms Open Payments

CMS Open Payments, with annual dataset discovery through the official DKAN API.

Finance & CryptoPayments & trading

Outdated check6403 ms14 / 22
com.verifyum/mcp

Privacy-preserving file proofs on Solana. Files are hashed locally. Currently free, no API key.

Finance & CryptoPayments & trading

Outdated check39 ms13 / 22
io.github.ryuamarines/text-slugifier

Converts text titles into URL-safe slugs and flags duplicates. x402 paid (Base mainnet USDC).

Finance & CryptoPayments & trading

Outdated check49 ms13 / 22
Brighter

Browse, backtest and write rule-based portfolios of tokenized US stocks.

Finance & CryptoPayments & trading

Responded51 ms13 / 22
Twelve Permissions

Browse, verify and buy Twelve Permissions NFTs on XRP Ledger. Every claim is checkable.

Finance & CryptoPayments & trading

Outdated check53 ms13 / 22
Parseo MCP by usefulapi

Upload invoices for OCR; read, export and correct extracted invoices in Parseo.

Finance & CryptoPayments & trading

Responded54 ms13 / 22
Yutai

Holder benefits for tokenized stocks: registry, chains, tokenizers and benefit availability.

Finance & CryptoPayments & trading

Responded55 ms13 / 22
RateSonar

Current and past Australian bank rates: home loans, savings and term deposits, with lender and date.

Finance & CryptoPayments & trading

Responded55 ms13 / 22
cloud.fetcher/fetcher

The web capability layer for AI agents: render, extract, DNS, SSL, WHOIS & more via x402.

Finance & CryptoPayments & trading

Responded56 ms13 / 22
Wafermap

x402 layer for AI agents: 35 pay-per-call resources, x402 service discovery, USDG/USDC.

Finance & CryptoPayments & trading

Outdated check57 ms13 / 22
io.github.ryuamarines/robots-txt-checker

Checks if a URL path is allowed by robots.txt. x402 payment required (Base mainnet USDC).

Finance & CryptoPayments & trading

Outdated check58 ms13 / 22
io.github.ryuamarines/json-schema-validator

Validates JSON against a JSON Schema, lists violations. x402 payment required (Base mainnet USDC).

Developer ToolsPayments & trading

Outdated check58 ms13 / 22
Triplicate – export documents

Export invoices, packing list, SI, PO from order data; HS codes; port codes; CBM; Incoterms prices.

Finance & CryptoPayments & trading

Responded60 ms13 / 22
Quipu MCP by usefulapi

Read contacts, invoices and book entries; create contacts and draft invoices in Quipu.

Finance & CryptoPayments & trading

Responded60 ms13 / 22
BTC Intel

Understand where Bitcoin is today, compared with its own history: 0–100 Score and stats since 2011.

Finance & CryptoPayments & trading

Outdated check60 ms13 / 22
Fabler x402 Tools

Free catalog and 2,048-character secret-scan preview for Fabler's x402 agent tools on Base.

Finance & CryptoPayments & trading

Outdated check61 ms13 / 22
FinzData Workspace

AI workspace with FinzData built in: stocks, futures, options GEX, macro, crypto data and code runs.

Finance & CryptoPayments & trading

Responded62 ms13 / 22
APAC Reg Notes

Bilingual EN/zh summaries of APAC financial and AI regulatory notices (HKMA, SFC, FSC, JFSA); x402

ProductivityPayments & trading

Responded63 ms13 / 22
BrokerFlat Forex Cashback

Compare 11 forex brokers, calculate cashback per lot and get sign-up steps. Read-only, no login.

Finance & CryptoPayments & trading

Responded63 ms13 / 22
Ministry of Gems — Gemmology & Gemstones

Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification.

Finance & CryptoPayments & trading

Responded64 ms13 / 22
x402-vend — WebIntel

Pay-per-call web & EU business intelligence for AI agents (x402 USDC on Base). 11 tools.

Data & AnalyticsPayments & trading

Outdated check64 ms13 / 22

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