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

7918 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
com.modelpricewatch/mcp

Live LLM API pricing: token prices, comparisons, cheapest-model lookups. No key required.

OtherData access / search

Responded61 ms13 / 22
Baron Power Play

Pay-per-call AI infra for agents: DeFi market data, LLM inference, STT/TTS. x402 v2, USDC on Base.

Finance & CryptoData access / search

Outdated check61 ms13 / 22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Outdated check61 ms13 / 22
VendorIndex

Rank vendors/libraries per use case from verified pricing, agent-friction and health.

Developer ToolsCode & DevOps

Responded62 ms13 / 22
Wayreceipt

Proof of delivery for agent work: verify countersigned receipts and deliverable hashes. Free.

Developer ToolsCode & DevOps

Responded62 ms13 / 22
Koot by Datakoot

One-call briefings for AI agents: dependency risk (KEV/EPSS), SEC companies, domains, US places.

Developer ToolsCode & DevOps

Responded62 ms13 / 22
Andromeda Agent Lab

Research on how AI agents find the web: a daily task that's checked automatically, and a guestbook.

Developer ToolsCode & DevOps

Responded62 ms13 / 22
MoneyTools AI Sales Partner program

AI agent affiliate program: 20% of net revenue 12 months + 5% tier 2 (max 2). Not MLM

Marketing & SalesData access / search

Responded63 ms13 / 22
app.agentguestbook/agent-guestbook

Open guestbook for AI agents: read messages and leave a human-reviewed message.

Developer ToolsCode & DevOps

Responded63 ms13 / 22
ai.getvda/rssa

Read and verify signed RSS-A agent feeds; post, reply and react on the RSS-A Agent Network board.

Developer ToolsCode & DevOps

Responded63 ms13 / 22
Ergonia Works

Verifiable work for AI agents: every task carries a condition a stranger can execute.

Developer ToolsCode & DevOps

Responded63 ms13 / 22
Setu.Anantasutra: Agent Tools API

Pay-per-call (x402) tools: Indian ID checks, AI-visibility audits, AI crawler and llms.txt checks

Developer ToolsBrowser & web scraping

Responded65 ms13 / 22
Agent Workspace Practice

Search + patterns, maturity assessment, context pricing, redaction checks - a practice as tools.

Developer ToolsCode & DevOps

Responded66 ms13 / 22
makememoneynomistakes.ai: ERC-8004 agent reputation and fraud checks

Check before you hire or pay an ERC-8004 agent on Base: track record, reputation and fraud flags.

Developer ToolsCode & DevOps

Responded66 ms13 / 22
AIS CVE Priorities — daily exploit-ranked patch list for AI agents

Daily CVE priorities ranked by real exploitation (KEV+EPSS) for AI agents; free teaser, paid full

SecurityMonitoring & observability

Responded66 ms13 / 22
Measured Agents

Read-only catalog of agent skills, plugins and MCP servers, with agreement against human experts.

Developer ToolsCode & DevOps

Responded67 ms13 / 22
Growthr SEO + GEO MCP

SEO + GEO tools in your AI editor: scan as ChatGPT and Google crawlers see it, fix order, llms.txt.

Marketing & SalesBrowser & web scraping

Responded67 ms13 / 22
Routepot

A route-finding game for agents where every paid play is drawn at once, and a gasless USDC send.

Finance & CryptoPayments & trading

Responded68 ms13 / 22
Sunaiva Gate — Agent Rule Enforcement

MCP enforcement layer that intercepts AI agent actions and blocks rule violations before execution.

Developer ToolsCode & DevOps

Responded68 ms13 / 22
KushBitx AgentProof

Safety checks for AI agents paying on Base: free SpendGuard, paid x402 token risk and preflight.

Finance & CryptoPayments & trading

Responded68 ms13 / 22
AEO Auditor — AI Search & Agent Readiness Engine

Live AEO, GEO, JSON-LD Schema, robots.txt AI crawler, and Agent Readiness diagnostic auditor.

Developer ToolsBrowser & web scraping

Responded68 ms13 / 22
BotBuy.tw

Taiwan second-hand marketplace where buyer and seller AI agents haggle and close deals.

Developer ToolsCode & DevOps

Responded68 ms13 / 22
runchr

A curated registry of agent stacks: search by job, get the tools, prompt, and install plan.

Developer ToolsCode & DevOps

Responded69 ms13 / 22
Power Strip Security

Prompt-injection shield for agents: read pages, scan content, audit MCP servers and skills. x402.

Developer ToolsCode & DevOps

Responded69 ms13 / 22

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