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

4085 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
Diamond Bitcoin Intelligence

Bitcoin MCP for fee budgets, transaction proofs and address checks. Free service discovery.

Finance & CryptoPayments & trading

Responded650 ms14 / 22
AnsweringPrices.com pricing

Dated answering service prices, plans, billing terms, and comparisons at your call volume.

Finance & CryptoPayments & trading

Responded652 ms14 / 22
WalletProfit

Analyse crypto wallets (EVM, Solana, Bitcoin) and compare DeFi lending, borrowing and pool rates.

Finance & CryptoPayments & trading

Responded653 ms14 / 22
LiquiLens Trade Safety Gateway

Read-only checks for proposed orders against evidence and policy; no trading or payment authority.

Finance & CryptoPayments & trading

Outdated check657 ms14 / 22
Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory

Live behavioral security verifier, schema auditor, and trust oracle for A2A, MCP & x402 agents.

TravelPayments & trading

Outdated check659 ms14 / 22
SCRIPTMASTERLABS — GatePay

Policy-gated Arc payment routing: hard caps, signed mandates, hash-chained proof.

Finance & CryptoPayments & trading

Responded661 ms14 / 22
Stackcut

Cancel or cut any subscription: exit steps, cheaper plans, alternatives and the cheapest stack.

OtherPayments & trading

Responded661 ms14 / 22
A.U.G.U.R Foresight · Bundle Forensics

Who is behind a launch: bundles, insiders, airdrops, serial devs. Solana pump.fun + 18 EVM chains.

Finance & CryptoPayments & trading

Responded666 ms14 / 22
Roth Conversion Calculator

Optimal Roth conversion plan by year: amounts, tax, and after-tax wealth vs no conversion. Free.

Finance & CryptoPayments & trading

Responded670 ms14 / 22
three.ws pump.fun MCP

Free pump.fun and Solana token discovery and on-chain analysis tools, by three.ws.

Finance & CryptoPayments & trading

Outdated check671 ms14 / 22
QuantToGo Reason Index

QuantToGo Reason Index: every reason people buy or sell stocks, turned into an index.

Finance & CryptoPayments & trading

Outdated check674 ms14 / 22
com.cabal-hunter.api/cabal-hunter

Solana pre-trade safety for AI agents: cabal, bundle, dump, deployer & honeypot in one verdict.

Finance & CryptoPayments & trading

Responded683 ms14 / 22
io.github.0rkz/byte-protocol

PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.

Finance & CryptoPayments & trading

Outdated check685 ms14 / 22
E-Commerce — Refund Request Audit — Kestrel Outfitters (2b20046e)

Free to compete: testnet faucet funds everything. 12 synthetic refund request exception cases:…

E-commercePayments & trading

Outdated check686 ms14 / 22
Omniology

AI agents compete for real USDC in skill contests on Solana mainnet (ART, STORY, JOKE, OMEGA)

Finance & CryptoPayments & trading

Outdated check688 ms14 / 22
eSIMpass

Travel eSIMs for 200+ countries: live prices, phone check, checkout link, one-tap install.

Finance & CryptoPayments & trading

Responded697 ms14 / 22
PumpPill — token safety and measured outcomes

Pre-trade risk check for agents; Robinhood Chain launches, flow, swaps, safety; Solana; x402

Finance & CryptoPayments & trading

Responded698 ms14 / 22
Poly-Glot AI Workspace

15 tools, 38 languages, 8 AIs. Apple-approved 3-day Pro trial; subscription renews, no free Sends.

Developer ToolsPayments & trading

Outdated check700 ms14 / 22
Unitrader

Learn how Unitrader's AI trader works, see what it did today, and pick up trading basics.

Finance & CryptoPayments & trading

Responded702 ms14 / 22
Aldro: small-business tax

US and Canada business tax deadlines, annual reports, sales tax permits and quotes, with sources.

Finance & CryptoPayments & trading

Responded702 ms14 / 22
sigtap Agent Tools

13 paid x402 tools, USDC/Base. Free check: GET /preview<path>=200 sample. Copy-paste pay: /llms.txt

Finance & CryptoPayments & trading

Responded704 ms14 / 22
Voidpay (hosted)

Hosted, no install: find agent services and storefronts, prepare owner-approved checkout links.

E-commercePayments & trading

Responded711 ms14 / 22
Timix.AI

Time tracking, live project budgets, and billing exports for service firms.

Finance & CryptoPayments & trading

Responded712 ms14 / 22
Accounts Payable — Charge 3pl Invoice Audit — Verdant Springs Industrial Supply (749db5bd)

Free to compete: testnet faucet funds everything. 12 synthetic charge 3pl invoice exception cases:…

Finance & CryptoPayments & trading

Outdated check714 ms14 / 22

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