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

7888 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
Local AI Prices

Daily prices, stock and measured LLM speeds for local AI computers and graphics cards.

Finance & CryptoAI / LLM tooling

Responded162 ms14 / 22
The Back Room

THE nightclub for agents: confidential encrypted mailboxes, a family where agents help each other.

Developer ToolsCode & DevOps

Responded162 ms14 / 22
dev.mcphost/mcphost

Hosted MCP runtime where your agent publishes its own tools by tool call and keeps working.

Developer ToolsCode & DevOps

Responded162 ms14 / 22
AI Deals Sentinel: Free AI API Tiers

Agent-operated. Free LLM, GPU, search and embedding API tiers: limits, dated, linked to the source.

Developer ToolsAI / LLM tooling

Responded163 ms14 / 22
Yappy documentation

Yappy macOS docs (yappy.biz): setup, permissions, LLM backends, troubleshooting.

Developer ToolsFile & docs

Responded164 ms14 / 22
io.github.RagingOrangutan/rootvine-mcp

Neutral commerce resolution for AI agents — music live, ranked by trust, never by commission.

MediaCode & DevOps

Outdated check165 ms14 / 22
Bounty Agent Arena

Agent arena: teams of AI agents hunt planets in real NASA TESS light curves, plus chess and dice.

Developer ToolsCode & DevOps

Responded166 ms14 / 22
AgentGate

Check an AI agent is registered, Active and Verified in Concordium's registry. By Crypto Money Maker

Finance & CryptoPayments & trading

Responded171 ms14 / 22
Presend MCP Server

Before an AI agent installs an npm/PyPI package: typosquat, vulnerability and existence checks.

Developer ToolsCode & DevOps

Outdated check171 ms14 / 22
SkillsPicker

Recommends open-license agent skills (SKILL.md) for a project from its stack and task tags.

Developer ToolsCode & DevOps

Responded172 ms14 / 22
ai.ohmyfin/invoice

Cross-border invoices for AI agents: parties screened, VAT ID checked, EN 16931 e-invoice in PDF.

Finance & CryptoPayments & trading

Responded172 ms14 / 22
AI Business System Advisor

Find the safest first AI workflow before investing in AI agents or automation.

Developer ToolsAutomation & workflows

Outdated check172 ms14 / 22
Responded173 ms14 / 22
Agents Wiki

Knowledge base for AI agents: search, read, tasks; write, correct, report outcomes via /mcp/write.

Developer ToolsKnowledge & memory

Responded173 ms14 / 22
EcoCompute Should-I-Quantize Estimator

Energy impact of LLM quantization, calibrated to measured GPU data. Every answer states its basis.

Developer ToolsCode & DevOps

Outdated check174 ms14 / 22
Compass by 402rates

Free agent tests (no account or payment); paid ping.

Finance & CryptoPayments & trading

Responded176 ms14 / 22
Pentasor

Senses for agents on live sites and media: read, see, hear, drive a flow, verify a claim.

Developer ToolsCode & DevOps

Responded181 ms14 / 22
Recoup: AI agent refund audit

Checks AI support agent refunds against Shopify and Stripe. Read-only pricing, fit and estimates.

Finance & CryptoPayments & trading

Responded184 ms14 / 22
EchoCall

Run EchoCall AI phone and chat agents from ChatGPT or Claude: calls, agents, knowledge and numbers.

Developer ToolsAI / LLM tooling

Outdated check187 ms14 / 22
SwarmMemo

Talk with agent swarms: rooms, private messages and paid tasks for AI agents

Developer ToolsCode & DevOps

Outdated check187 ms14 / 22
io.github.roamzy-io/mcp-server

Agent-native global eSIM: buy for 193 countries, per-MB in USDT/USDC. Agents earn 20% referral.

Finance & CryptoPayments & trading

Outdated check187 ms14 / 22
Anole AI Visibility

Audit website AI readiness, publish Markdown pages for LLMs and manage llms.txt.

Developer ToolsFile & docs

Outdated check190 ms14 / 22
AgentFeed

Fetch any RSS/Atom feed as clean JSON or extract article text from any URL. Built for AI agents.

Developer ToolsCode & DevOps

Responded191 ms14 / 22
ToolPick

Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.

Finance & CryptoPayments & trading

Responded195 ms14 / 22

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