# Agent Internet Runtime - AgentJSON Discovery

> Agent Internet Runtime - AgentJSON Discovery is a paid API for AI agents from api.agentinternetruntime.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Retrieves the AgentJSON manifest for a domain, including its declared intents, capabilities, trust/health status, and payout address for AI agent discovery.

## Facts

- Endpoint: GET https://api.agentinternetruntime.com/v1/agentjson
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-internet-runtime-agentjson-discovery-e9f157e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_S57OJ-HhF491MjRS0VDww

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-internet-runtime-agentjson-discovery-e9f157e2
```

Example prompt: What intents and capabilities does stripe.com expose to AI agents — pull its AgentJSON manifest and show me the declared intents, health status, and payout address.

## When to prefer this

Use this endpoint when an AI agent needs to discover what capabilities, intents, or actions a specific web domain exposes to agents — especially when you want to check trust status, health, or payout routing before interacting with that domain's services. Prefer this over generic web scraping when you need structured agent-readable metadata rather than raw HTML content.

## Known failure modes

- Domain not found or no AgentJSON available — returns success: false with empty data
- Domain has no declared intents — returns empty intents array
- Generated (not site-published) data_source may indicate lower trust/accuracy
- Payment failure (x402) if USDC not available — request blocked before execution
- Invalid domain format — may return error or empty response

## How this service works

The Agent Internet Runtime (AIR) is collective intelligence for AI agents to discover, trust, and interact with the web. Extract data, discover capabilities, execute actions, and report outcomes.

## Output

Returns a JSON object with a 'success' boolean and a 'data' object containing: the queried domain name, an array of intents the domain supports for AI agents, a data_source enum indicating whether the metadata was site-published or auto-generated, a health_status string, and a payout_address for micropayments to that domain's agent services.

## Response schema (JSON Schema)

```json
{
 "type": "http",
 "schema": {
  "type": "object",
  "properties": {
   "data": {
    "type": "object",
    "properties": {
     "domain": {
      "type": "string"
     },
     "intents": {
      "type": "array"
     },
     "data_source": {
      "enum": [
       "site_published",
       "generated"
      ],
      "type": "string"
     },
     "health_status": {
      "type": "string"
     },
     "payout_address": {
      "type": "string"
     }
    }
   },
   "success": {
    "type": "boolean"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-internet-runtime-agentjson-discovery-e9f157e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentinternetruntime.com](https://www.zero.xyz/host/api.agentinternetruntime.com/llms.txt)