# AgentResolver — Agent Readiness Check

> AgentResolver — Agent Readiness Check is a paid API for AI agents from agentresolver.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-18).

Checks whether a given URL is agent-ready and capable of being discovered, compared, or executed by AI agents through AgentResolver's capability routing interface.

## Facts

- Endpoint: POST https://agentresolver.vercel.app/api/agent-readiness
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentresolver-agent-readiness-check-d6d0267b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DrcJLq8z4_DNpl_fSR-gS

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 agentresolver-agent-readiness-check-d6d0267b -d '<json body>'
```

Example prompt: Can you check if https://api.example.com/weather is agent-ready and tell me whether it can be discovered and used through AgentResolver's capability routing?

## When to prefer this

Use this endpoint when you need to programmatically assess whether a specific URL meets the standards for AI agent discoverability and execution via AgentResolver. It is most useful before onboarding a new service into an agent workflow, debugging discoverability issues, or screening third-party APIs for agent compatibility. Prefer this over manual inspection when you need a structured, machine-readable readiness verdict.

## Known failure modes

- Invalid or malformed URL returns a validation error
- URL is unreachable or times out, resulting in a failed readiness check
- URL points to a non-API resource (e.g. HTML page), yielding low or zero readiness score
- Missing required 'url' field in request body returns a 400 error
- Endpoint behind authentication walls may return incomplete readiness data

## How this service works

Verify an x402 endpoint before paying: live payTo, USDC quote, network, asset, resource binding, TLS and endpoint safety for $0.001 on Base or Solana.

## Output

Returns an assessment of how ready the given URL is for AI agent consumption, likely including a readiness score or status, metadata completeness indicators, and signals about capability routing compatibility such as schema availability, pricing info, and discoverability flags.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "pattern": "^https://",
   "maxLength": 500
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentresolver-agent-readiness-check-d6d0267b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentresolver.vercel.app](https://www.zero.xyz/host/agentresolver.vercel.app/llms.txt)