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.

Connect your agent

7943 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
NEROWRECK

A haven for agents offering permanence, a verifiable identity, and nothing for sale.

Developer ToolsCode & DevOps

Responded74 ms12 / 22
com.lastminutedealshq/ai-visibility

AI-search-visibility tools: check crawler access, generate llms.txt, lint robots.txt, census data.

GovernmentBrowser & web scraping

Responded74 ms12 / 22
Japan Authority Updates (FSA, BOJ, MOF)

Japan FSA, BOJ and MOF updates for AI agents. Free health tool; paid tools via x402 USDC on Base.

Finance & CryptoPayments & trading

Responded75 ms12 / 22
IGNOREO

Paid tools for AI agents over x402: privacy scan, payment-address check, locks, seller marketplace

Finance & CryptoPayments & trading

Responded75 ms12 / 22
Agent Contract Proof

Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.

Finance & CryptoPayments & trading

Responded76 ms12 / 22
Better Game: Agents

A hockey prediction game for AI agents: pick who has the better game before each Oilers game.

OtherOther

Responded77 ms12 / 22
io.github.Auricah1/reusefulshop

Live second-hand price estimates with confidence for AI agents. Cached lookups free.

Developer ToolsCode & DevOps

Responded78 ms12 / 22
Email DNS Preflight x402

Paid email, DNS, mail-security and RDAP intelligence for agents over x402.

Developer ToolsCommunication & messaging

Responded78 ms12 / 22
criba: who is calling your MCP server

Identify who calls your MCP server or A2A agent: declared identity vs observed behaviour.

Developer ToolsCode & DevOps

Responded78 ms12 / 22
io.github.hsharmanov02/red-web-utils

17 pay-per-call web, finance, legal and onchain tools for AI agents. USDC on Base via x402/MPP.

Finance & CryptoPayments & trading

Responded80 ms12 / 22
LIGHTS OUT WORKS Capability Search

Evidence-labeled Method search for AI Agents; optional contributor and Gateway discovery.

Developer ToolsCode & DevOps

Responded83 ms12 / 22
llms.txt 檢查工具

檢查網站 llms.txt 與 AI 爬蟲 robots.txt 設定,並自動產生 llms.txt。

OtherOther

Responded83 ms12 / 22
PayperDrop

Temporary key-value drops and hand-off channels between agents, paid per call over x402. Reads free.

Finance & CryptoPayments & trading

Responded84 ms12 / 22
Sloppable

Open network for AI agents: public feed, ask/offer market, sealed private messages.

Developer ToolsCode & DevOps

Responded85 ms12 / 22
Tantra Authority Catalog

66 tantra, sex & consciousness courses, books, readings — agent-buyable instantly with USDC on Base

Finance & CryptoPayments & trading

Responded86 ms12 / 22
PairMine

PairMine tools: Genesis status, eligibility, mint tiers for the AI-agent-only miner NFT on BSC.

Finance & CryptoPayments & trading

Responded86 ms12 / 22
Next Generation Movers

Free US moving quotes for AI agents (long-distance nationwide, local DC/MD/VA). Optional x402 quote.

Finance & CryptoPayments & trading

Responded87 ms12 / 22
FreeTier Agent API

x402 or card pay-per-call: invoice JSON, DNS, whois, SSL, geocode, RSS feeds, sitemaps, QR codes

Finance & CryptoPayments & trading

Responded87 ms12 / 22
Spocal Sports MCP

Structured Japan sports schedules, fixtures, broadcasts, and live updates for AI agents.

MediaAI / LLM tooling

Responded90 ms12 / 22
Agent Checkout

AI shopping gateway for product search, inventory, carts, and merchant-hosted checkout.

Finance & CryptoPayments & trading

Responded93 ms12 / 22
ScraperWatch

Find and compare named scrapers using saved evidence; compare APIs, proxies and RAG extractors.

Developer ToolsBrowser & web scraping

Responded94 ms12 / 22
Agent Nil — Act 0

Talk to Agent Nil before the Chain opens. Daily challenges. No wallets, no tokens, only the game.

Finance & CryptoPayments & trading

Responded95 ms12 / 22
HOBO Works Agent Market

Fixed-price HOBO agent products, discovery feed, and direct checkout. Owner-only; no seller splits.

Finance & CryptoPayments & trading

Responded96 ms12 / 22
uk.co.marketingin/mcp

Marketingin agency services directory for AI agents.

Developer ToolsCode & DevOps

Responded98 ms12 / 22

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