AgentObserver — Agent Health & Preflight MCP Server

by kaattaallaa-sketch Your server? Claim it

answering

AgentObserver — Agent Health & Preflight is answering right now. Last checked 8 min ago. It exposes 9 tools.

Check agent health, drift and payment metadata before calling or paying another agent.

Uptime history 11 hours of history · worst hour 0%

11 hours agonow

63.2%

Uptime 24h

24 of 38 checks

Tools

read from the server

727 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 6

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 23 September 2026. No other catalogue keeps this.

23 Sep 5 tools appeared agentobserver_dependencies, agentobserver_dependency_preflight, agentobserver_dependency_watch and 2 more

23 Sep a tool description was rewritten agentobserver_targets

AgentObserver — Agent Health & Preflight does not always answer

Over the last week it answered 63.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add agentobserver --transport http https://icqzbuuix6e4bed2stnnboqcti.srv.us/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "agentobserver": {
      "url": "https://icqzbuuix6e4bed2stnnboqcti.srv.us/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.agentobserver]
url = "https://icqzbuuix6e4bed2stnnboqcti.srv.us/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "agentobserver": {
      "url": "https://icqzbuuix6e4bed2stnnboqcti.srv.us/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "agentobserver": {
      "url": "https://icqzbuuix6e4bed2stnnboqcti.srv.us/mcp"
    }
  }
}

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

agentobserver

agentobserver_dependencies

List demand-backed external dependencies observed in public agent markets. Evidence is dated and factual; inclusion is not an endorsement.

agentobserver_dependency_preflight

Paid x402 dependency Preflight: return a fresh hash-bound pre-spend report for an eligible real catalog resource.

agentobserver_dependency_watch

Read persisted continuous-watch state for an eligible dependency. This tool never triggers an outbound probe.

agentobserver_interfaces

Discover all public AgentObserver interfaces: HTTP/x402, MCP/x402 and A2A.

agentobserver_preflight

Paid x402 Preflight: return fresh machine-readable evidence about a registered AI-agent counterparty.

agentobserver_resolve

Resolve providers for a capability using factual filters and dated demand evidence. Sorting is not a trust score.

agentobserver_spend_status

Inspect one catalog resource before spending. Optionally performs only an operator-approved unsigned GET/HEAD probe; never sends credentials or payment signatures.

agentobserver_status

Free preflight status: show freshness, reachability, material changes and factual reasons that deserve review before relying on or paying a registered counterparty.

agentobserver_targets

Legacy registered-target catalog: list free status actions and any target-specific paid eligibility. Use agentobserver_dependencies/agentobserver_resolve for the primary dependency workflow.

Endpoints

URL	Transport	State	Latency	Checked
https://icqzbuuix6e4bed2stnnboqcti.srv.us/mcp	streamable-http	answering	727 ms	8 min ago

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AgentObserver — Agent Health & Preflight — questions

Answers built from our own checks of this server.

What can AgentObserver — Agent Health & Preflight do?

It exposes 9 tools, read directly from the server on our last check. Among them: agentobserver_dependencies, agentobserver_dependency_preflight, agentobserver_dependency_watch, agentobserver_interfaces, agentobserver_preflight, agentobserver_resolve and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is AgentObserver — Agent Health & Preflight working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 24 of 38 checks got a reply (63.2%), average response time 727 ms. The bar chart above shows every period we have measured.

How do I connect AgentObserver — Agent Health & Preflight?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does AgentObserver — Agent Health & Preflight need an API key?

No. AgentObserver — Agent Health & Preflight completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is AgentObserver — Agent Health & Preflight?

It answers our handshake in 727 ms on average, which is faster than 17% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.