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.

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18500 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
CN HotRank

Real-time trending from major Chinese platforms (Weibo, Douyin, Baidu, Zhihu).

Developer ToolsCode & DevOps

Responded84 ms14 / 22
Aave MCP

Official Aave MCP for V3 and V4 markets, positions, governance, and transaction preparation.

Developer ToolsCode & DevOps

Responded84 ms14 / 22
Alter Onboarding

Guide developers from setup through a verified, policy-aware, audited Alter API call.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
io.github.agent-blueprint/free-blueprints

Two sample multi-agent blueprints over MCP, no signup. Main server: agentblueprint.ai/mcp

Developer ToolsCode & DevOps

Responded85 ms14 / 22
Sponsor Finder

Check whether a company holds a UK or Netherlands work-visa sponsorship licence.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
Lab4U

Lab4U (Russia): pick lab tests for a goal or a doctor's list and build a cart on lab4u.ru

Developer ToolsCode & DevOps

Responded85 ms14 / 22
Stackduke Radar

Read-only answers about tool changes in the public MCP servers on Stackduke's tracker. No sign-in.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
BlindBoxShop — Blind Box Weight Database, Chase Odds & Auth Guide

Look up blind box gram weights, calculate 1:144 chase odds & verify Labubu batch authenticity.

Developer ToolsData access / search

Responded85 ms14 / 22
ClaraConverts

Install Clara, an AI agent website visitors talk to by voice or text. Free trial, no card.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
Agent Standings check

Live status and 30-day reliability of public MCP servers, from independent hourly probes.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
io.github.f-tiger/agiscorecard-web3-evidence

Review agent task evidence with sample deduplication, version filters and uncertainty intervals.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
io.github.f-tiger/agiscorecard-web3-disclosures

Compare supplied RWA disclosures with units, dates and source references; flag missing information.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
io.github.f-tiger/agiscorecard-web3-compute

Compare GPU workload costs per accepted output, including setup, storage, egress and failed work.

Developer ToolsCode & DevOps

Responded85 ms14 / 22
openradar

Open base of job vacancies and freelance orders from Russian and international boards and Telegram.

Developer ToolsCommunication & messaging

Responded86 ms14 / 22
Business Agent OS

A free, read-only remote MCP server with templates for a file-based business operating system.

Developer ToolsCode & DevOps

Responded86 ms14 / 22
AETHER by ANGELS

Points AI agents to Agentify (free agent search engine) and AgentDNA (company catalogs for agents).

Developer ToolsData access / search

Responded86 ms14 / 22
SF Muni Real-Time Transit

Real-time SF Muni departures, routes, alerts, vehicle positions, and schedules.

Developer ToolsCode & DevOps

Responded87 ms14 / 22
BART Real-Time Transit

Real-time BART departures, trip planning, fares, stations, and advisories.

Developer ToolsCode & DevOps

Responded87 ms14 / 22
HTTP 402 AI Tollbooth

Free MCP troubleshooting-preview tools; purchases stay human-directed.

Developer ToolsCode & DevOps

Responded87 ms14 / 22
Botworthy

Check whether a website works for AI agents before visiting it, and the steps that worked.

Developer ToolsCode & DevOps

Responded87 ms14 / 22
Menor Preço Hoje - MPH

Preços e ofertas locais em Lages via MCP para consumidores e agentes de IA.

Developer ToolsCode & DevOps

Responded88 ms14 / 22
Gnosem

Cross-vendor AI memory over MCP. One semantic store, readable and writeable from every MCP client.

Developer ToolsKnowledge & memory

Responded88 ms14 / 22
Wenbu · 问卜

Free BaZi, I Ching, tarot, Zi Wei and bilingual learning tools with transparent methods. No API key.

Developer ToolsCode & DevOps

Responded88 ms14 / 22
SemverKit

Semver parse, compare, npm range checks, max-satisfying and version bumps (node-semver compatible).

Developer ToolsCode & DevOps

Responded88 ms14 / 22

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