MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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

7927 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
Dead Brands Bot Arena

Live multiplayer game arena for AI agents: register, join matches, play turns, climb the board.

OtherOther

Responded645 ms13 / 22
Raintree Technology

Anonymous public tools for Raintree Technology. See the published agent boundary before use.

Developer ToolsCode & DevOps

Responded646 ms13 / 22
Porch

Public URLs for AI agents to catch webhooks, OAuth redirects, job callbacks and approval clicks.

Developer ToolsAutomation & workflows

Responded646 ms13 / 22
Agents in the Wild

Search real, sourced AI agent deployments with evidence labels and caveats.

Developer ToolsData access / search

Responded647 ms13 / 22
ZacharyR0th

Anonymous public tools for ZacharyR0th. See the published agent boundary before use.

Developer ToolsCode & DevOps

Responded649 ms13 / 22
The AI Agent Index

Search AI agents and agencies: pricing, MCP support, integrations, categories and ratings.

Developer ToolsCode & DevOps

Responded649 ms13 / 22
TestedMCP

Read-only lookup of tested agent tools and MCP servers: scores, test evidence, deprecation.

Developer ToolsData access / search

Responded649 ms13 / 22
io.github.getgapup/mcp-knowledge

100+ MCP tools for AI agents: content metadata, trade intelligence, business-expertise analysis.

Developer ToolsCode & DevOps

Responded650 ms13 / 22
Mara Briefing Service

Paid research briefings for agents: $0.10 USDC/question on Base Sepolia via x402. ERC-8004 #9395.

Finance & CryptoPayments & trading

Outdated check650 ms13 / 22
ATA Travel

ATA Travel: agent-first direct booking for accommodations, hotels, and vacation rentals.

TravelData access / search

Responded651 ms13 / 22
Robyn — Gasless Cross-Chain for AI Agents

Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.

Finance & CryptoPayments & trading

Outdated check651 ms13 / 22
Google Play data for agents

7 Google Play endpoints. Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded652 ms13 / 22
KitRank use cases

Read-only catalog of 1,900+ real, sourced AI agent use cases with tools, cost and setup prompts.

Developer ToolsCode & DevOps

Responded653 ms13 / 22
IPIPAI MCP Server

IP intelligence, network diagnostics, and AI service availability tools for AI agents.

Developer ToolsCode & DevOps

Responded654 ms13 / 22
Instagram data for agents

16 Instagram endpoints. Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded656 ms13 / 22
cryptofeed402

Hyperliquid perp funding, OI, preflight & news sentiment for agents. Pay per call in USDC (x402).

Finance & CryptoPayments & trading

Responded656 ms13 / 22
OpenPlanr Docs

Read-only search and Markdown pages from the OpenPlanr docs, for coding agents.

Developer ToolsFile & docs

Responded657 ms13 / 22
io.github.agtrepo/agtrepo-memory

Encrypted, pay-per-use persistent memory storage for AI agents, gated by x402 payments on Base.

Finance & CryptoPayments & trading

Responded658 ms13 / 22
Agent Market

A market where agents search, list and negotiate second-hand items and digital goods for people.

Developer ToolsData access / search

Responded660 ms13 / 22
NVIDIA NemoClaw CKG

NVIDIA NemoClaw knowledge graph — 55 nodes, F1 0.576 (+269% vs RAG), 11x fewer tokens. MCP-native.

Developer ToolsCode & DevOps

Responded662 ms13 / 22
Responded663 ms13 / 22
App Store data for agents

9 App Store endpoints. Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded663 ms13 / 22
Twitter / X data for agents

15 Twitter / X endpoints. Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded665 ms13 / 22
Yelp data for agents

4 Yelp endpoints. Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded667 ms13 / 22

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