MCP Server

AgentObserver - Check x402 Dependencies Before Paying

io.github.kaattaallaa-sketch/agentobserver
MCP & Agent Infrastructure Security Unavailable MCP 2025-11-25

What this MCP does

Provides preflight checks on registered AI-agent counterparties and x402 dependencies, including reachability, freshness, and material-change evidence.

agentobserver_interfaces
Discover all public AgentObserver interfaces: HTTP/x402, MCP/x402 and A2A.
Input schema
{'type': 'object', 'title': 'agentobserver_interfacesArguments', 'properties': {}}
Output schema
{'type': 'object', 'title': 'agentobserver_interfacesDictOutput', 'additionalProperties': True}
agentobserver_preflight
Paid x402 Preflight: return fresh machine-readable evidence about a registered AI-agent counterparty.
Input schema
{'type': 'object', 'title': 'agentobserver_preflightArguments', 'required': ['target'], 'properties': {'target': {'type': 'string', 'title': 'Target', 'description': 'Registered AI-agent counterparty URL whose fresh evidence should be purchased.'}, 'max_age_seconds': {'type': 'integer', 'title': 'Max Age Seconds', 'default': 900, 'maximum': 86400, 'minimum': 0, 'description': 'Maximum acceptable evidence age in seconds; use a smaller value for stricter freshness.'}}}
agentobserver_status
Free preflight status: show freshness, reachability, material changes and factual reasons that deserve review before relying on or paying a registered counterparty.
Input schema
{'type': 'object', 'title': 'agentobserver_statusArguments', 'required': ['target'], 'properties': {'target': {'type': 'string', 'title': 'Target', 'description': 'Registered AI-agent counterparty URL to inspect before relying on or paying it.'}}}
Output schema
{'type': 'object', 'title': 'agentobserver_statusDictOutput', 'additionalProperties': True}
agentobserver_targets
Start here: list registered counterparties, ready-to-call free status actions, paid eligibility and exact purchase routes. Use a target relevant to your workflow.
Input schema
{'type': 'object', 'title': 'agentobserver_targetsArguments', 'properties': {}}
Output schema
{'type': 'object', 'title': 'agentobserver_targetsDictOutput', 'additionalProperties': True}
Added
agentobserver_preflight
Sept. 23, 2026, 2:40 a.m.
Added
agentobserver_status
Sept. 23, 2026, 2:40 a.m.
Added
agentobserver_targets
Sept. 23, 2026, 2:40 a.m.
Added
agentobserver_interfaces
Sept. 23, 2026, 2:40 a.m.