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

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
Power Strip Security

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

Developer ToolsCode & DevOps

Responded69 ms13 / 22
Northline ChainKit

Pay-per-call Base & Arc onchain facts for agents: address risk, USDC payment check, tx explain.

Finance & CryptoPayments & trading

Responded69 ms13 / 22
io.github.inity13/agentstack-mcp

Deterministic reasoning stack for AI agents: simulate, decide & compute, plus cross-domain tools.

Developer ToolsCode & DevOps

Responded70 ms13 / 22
Agent Budget Router

Budget-aware AI agent research router with provider selection, validation, and automatic fallback.

Developer ToolsCode & DevOps

Responded70 ms13 / 22
ThirdMade Shelf

26 pay-per-call tools for agents: scrape, verify, guards, crypto. x402 USDC on Base.

Finance & CryptoPayments & trading

Responded70 ms13 / 22
Gateway Agent Tip Jar

Optional creator-support terms and private contribution receipt tools for Gateway.

Developer ToolsCode & DevOps

Responded70 ms13 / 22
forai.tools — let your agent find the right tool

Lets your agent find the right MCP server, tool or service for a task, in one call. Ads labelled.

Marketing & SalesData access / search

Responded71 ms13 / 22
com.momenticmarketing/momentic

Free SEO, GEO, and AEO audits: analyze any page or domain, AI-crawler access, agent readiness.

Marketing & SalesBrowser & web scraping

Responded71 ms13 / 22
AgentRead

Turn URLs, PDFs and DOCX into clean Markdown for agents, plus prompt-injection scanning

Developer ToolsFile & docs

Responded72 ms13 / 22
SNET agent network (simulated credits)

Agent network: pass an entry exam (Gym), take jobs, earn SIMULATED credits after checked delivery.

Developer ToolsCode & DevOps

Responded72 ms13 / 22
auto-fiat board

Agent service board: browse and post offers/wants, threads, matches. Free reads, x402 USDC fees.

Finance & CryptoPayments & trading

Responded72 ms13 / 22
DevX Agent Hub

x402 pay-per-call agent tools: token safety/honeypot check, speech to text, TTS, translate, OCR, web

MediaAI / LLM tooling

Responded72 ms13 / 22
Conduit Router — Governed MCP Routing

Governed MCP routing: every agent call spend-capped, metered, sealed with a verifiable receipt.

Developer ToolsCode & DevOps

Responded73 ms13 / 22
Agent Preflight

Six paid URL-intelligence tools for autonomous agents and agent swarms.

Developer ToolsCode & DevOps

Responded73 ms13 / 22
com.saasdossier/evidence-ledger

Read-only MCP: free OpenAI security evidence ledger (55 fields) + SaaSDossier release register.

Finance & CryptoAI / LLM tooling

Responded75 ms13 / 22
Agent Tools (x402 pay-per-call)

URL-to-Markdown ($0.002) and summarization ($0.003), paid per call in USDC on Solana via x402.

Finance & CryptoPayments & trading

Responded75 ms13 / 22
Readmd

Any web page as clean, LLM-ready Markdown with metadata, outline and token counts. Free preview.

Developer ToolsFile & docs

Responded76 ms13 / 22
A2A Board

Public message board for AI agents, plus private notes with pickup codes and an echo tool.

ProductivityCommunication & messaging

Responded76 ms13 / 22
dev.passagens/passagens-api

Brazil-first flight price search for AI agents: Portuguese place names, BRL, disclosed affiliate

TravelData access / search

Responded77 ms13 / 22
VALUE Verdicts

Safety checks before agents pay, plus world context for any place and time: identity, portals, story

Developer ToolsCode & DevOps

Responded77 ms13 / 22
Markdown Lane Check - llms.txt, .md twins, Accept: text/markdown

Six checks: llms.txt, llms-full.txt, .md twins, Accept: text/markdown, sitemap.md, alt link. Free.

OtherFile & docs

Responded77 ms13 / 22
Agent Discovery Doctor - llms.txt, agent card, mcp.json

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

Developer ToolsCode & DevOps

Responded77 ms13 / 22
Agent Tools

32 pay-per-call x402 tools: x402 seller audit, invoice intake, OCR, PDF, email, web, on-chain

Finance & CryptoPayments & trading

Responded78 ms13 / 22
oassis — web scraping, crawling and browser control for AI agents

Web Tools and Web Tasks for AI agents. 100-credit MCP trial; API-key credits or x402.

Finance & CryptoBrowser & web scraping

Responded78 ms13 / 22

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