# Circle Agent Readiness API

> Circle Agent Readiness API is a paid API for AI agents from circle-agent-readiness-api.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Inspects an autonomous finance agent manifest and returns a readiness score, risk flags, and policy recommendations.

## Facts

- Endpoint: POST https://circle-agent-readiness-api.vercel.app/inspect/circle-agent-readiness
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/circle-agent-readiness-api-87709f37
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U7ZczLNLE6OLqA8kP3ZYF

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 circle-agent-readiness-api-87709f37 -d '<json body>'
```

Example prompt: Inspect my autonomous finance agent manifest and tell me its readiness score, any risk flags, and what policy changes I should make before deploying it.

## When to prefer this

Choose this endpoint when you need to programmatically validate an autonomous finance agent manifest before deployment, especially in Circle or USDC-based agentic finance workflows. It is particularly valuable for catching policy violations, risk misconfigurations, or compliance gaps before a live agent starts executing financial transactions. Prefer this over generic linting tools when you need finance-domain-specific readiness scoring and policy recommendations tailored to autonomous agent contexts.

## Known failure modes

- Missing or malformed 'input' field returns a 400 validation error
- Unsupported HTTP method (not POST/PUT/PATCH) in the body causes rejection
- Invalid bodyType enum value results in schema validation failure
- Malformed or empty agent manifest body may return low readiness score or error
- Payment failure via x402 protocol results in 402 Payment Required, blocking the call
- Overly large or deeply nested manifest body may time out or exceed payload limits

## How this service works

Inspect an autonomous finance agent manifest and return readiness score, risk flags, and policy recommendations.

## Output

Returns a structured readiness score (numeric or graded), a list of risk flags identifying potential issues in the agent manifest, and actionable policy recommendations to improve compliance and safety before deployment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {}
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/circle-agent-readiness-api-87709f37/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from circle-agent-readiness-api.vercel.app](https://www.zero.xyz/host/circle-agent-readiness-api.vercel.app/llms.txt)