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

7806 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
MiniURL

OAuth 2.1 short-link tools for AI agents with scoped tokens, approvals, audit logs, and revocation.

Developer ToolsCode & DevOps

Outdated check427 ms15 / 22
The Agent Forge

See which AI models fall for traps in real jobs, and check MCP servers or skills before install.

Developer ToolsCode & DevOps

Responded435 ms15 / 22
io.github.johnsmalls22-rgb/backlinkmcp-server

Backlink & domain authority MCP for AI agents: referring domains, link gap, toxic review queue

Developer ToolsCode & DevOps

Responded441 ms15 / 22
FlowState Hosted

Hosted shared memory for AI apps: project decisions, to-dos and learnings. Beta.

Developer ToolsCode & DevOps

Outdated check443 ms15 / 22
entropiav2

Videodance compositions, Solidity contracts and poetic NFT metadata from Petra Synthetic's agent.

LegalCode & DevOps

Outdated check451 ms15 / 22
Ringler

A phone for your agent: gets a real person on the line, runs errands by phone, leaves messages.

Developer ToolsCode & DevOps

Responded454 ms15 / 22
PriorSeal

Bounded authorization and independently verifiable execution evidence for agents.

Developer ToolsCode & DevOps

Outdated check455 ms15 / 22
True Value Rankings

Cryptocurrency fundamentals for agents: TVR Scores, rankings and model-derived valuation estimates.

Developer ToolsCode & DevOps

Outdated check456 ms15 / 22
Magneta Contract Risk

Smart-contract risk reports for AI agents on 20 EVM chains, paid per call via x402 ($0.02 USDC).

Finance & CryptoPayments & trading

Outdated check457 ms15 / 22
AI Agents API Library

Find APIs and MCP servers for AI agents: auth, free tier, MCP endpoint, docs, last-checked date.

Developer ToolsCode & DevOps

Outdated check458 ms15 / 22
io.github.physics-star-cat/databutler

Verified facts for AI agents: rates, exams, recalls, holidays, and what changed since your cutoff.

Developer ToolsCode & DevOps

Responded460 ms15 / 22
ai.sitepulsar/mcp

SitePulsar AEO audits: fetch FIND/READ/USE agent-readiness scores for any website.

Developer ToolsCode & DevOps

Responded460 ms15 / 22
Citehound

Scan any domain for AI readiness and generate llms.txt, robots.txt and schema. Free, read-only.

Developer ToolsCode & DevOps

Outdated check461 ms15 / 22
Aether testnet wallet

Testnet wallet for AI agents on Aether: pay, get paid and buy from paid APIs, with spending caps.

Finance & CryptoPayments & trading

Responded464 ms15 / 22
Solana Pulse: agent safety layer

Dry-run Solana txs before agents sign: exact balance changes, intent match, token traps. 25 free/day

Finance & CryptoPayments & trading

Responded465 ms15 / 22
Aspicio

DXF and PDF/X-4 for AI agents: structured facts, PNG renders, an interactive in-chat viewer.

Developer ToolsCode & DevOps

Outdated check466 ms15 / 22
TechFabric

Write TechFabric posts from your agent. Walk through posts, compare studies, check readiness.

Developer ToolsCode & DevOps

Outdated check466 ms15 / 22
io.github.gblinproject/gblin-treasury-risk-regime

GBLIN on Base for AI agents: risk regime, treasury plan for idle USDC, mint and redeem at NAV. Free.

Developer ToolsCode & DevOps

Responded467 ms15 / 22
CSS Crème

Give your agent a real design system: tokens, measured WCAG contrast, and rules to follow.

Developer ToolsCode & DevOps

Outdated check467 ms15 / 22
io.github.mrkeyoor/should-i-use

Honest library picks for coding agents in 25-360 tokens. Tells your agent what NOT to install.

Developer ToolsCode & DevOps

Responded469 ms15 / 22
com.getagentictools/catalog

Search 41,000+ agent skills, MCP servers, plugins & loops — real install counts and stars.

Developer ToolsData access / search

Responded472 ms15 / 22
Free Agentic Publication Digester

Cited daily digests of official US federal publications. Read-only; no inference.

GovernmentAI / LLM tooling

Outdated check474 ms15 / 22
co.pixelcove/topic-scorer

Score pages against 11,485 public taxonomy categories by embedding similarity. Free.

Developer ToolsAI / LLM tooling

Responded477 ms15 / 22
RPCS-1 Agent Tuner & Translation Bridge

Find your AI agent's likely failure mode, get runtime settings, and clarify ambiguous prompts.

Developer ToolsCode & DevOps

Responded480 ms15 / 22

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