# llm402.ai

> llm402.ai is a paid API for AI agents from llm402.ai, paid per call via x402, $0.007106/call, status unknown (last checked 2026-09-14).

## Facts

- Endpoint: POST https://llm402.ai/v1/chat/completions/claude-fable-5%3Abatch
- Price: $0.007106/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/v1-chat-completions-claude-fable-5-3abatch-df52d279
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wR5hax_yCyHfxPMhIjvIW

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 v1-chat-completions-claude-fable-5-3abatch-df52d279 -d '<json body>'
```

## 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",
     "required": [
      "model",
      "messages"
     ],
     "properties": {
      "model": {
       "type": "string",
       "const": "anthropic/claude-fable-5:batch",
       "description": "This endpoint serves exactly one model."
      },
      "top_k": {
       "type": "integer",
       "minimum": 1
      },
      "top_p": {
       "type": "number",
       "maximum": 1,
       "minimum": 0
      },
      "stream": {
       "type": "boolean",
       "default": false
      },
      "messages": {
       "type": "array",
       "items": {
        "type": "object",
        "required": [
         "role",
         "content"
        ],
        "properties": {
         "role": {
          "enum": [
           "system",
           "user",
           "assistant",
           "tool"
          ],
          "type": "string"
         },
         "content": {
          "type": "string"
         }
        }
       },
       "minItems": 1
      },
      "max_tokens": {
       "type": "integer",
       "minimum": 1,
       "description": "Cap on generated tokens. Price scales with this cap."
      },
      "temperature": {
       "type": "number",
       "maximum": 2,
       "minimum": 0
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/v1-chat-completions-claude-fable-5-3abatch-df52d279/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from llm402.ai](https://www.zero.xyz/host/llm402.ai/llms.txt)