OpenAI-compatible chat completion (branded tier)

[
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "3MzJUA57HRTVaxWy111qxTQxnoy2ihBJ845PWNmWmBb5",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x87fc8c5b2c5000d50d6808f3526eeec57e240211",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "cosmos:gonka-mainnet",
    "payTo": "gonka1afj0tz53z56zngs425m83vxl5y2xmwm692hfrn",
    "asset": "ngonka",
    "amount": "11264",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "max_tokens": 256,
          "messages": [
            {
              "content": "Hello",
              "role": "user"
            }
          ],
          "model": "deepseek-ai/DeepSeek-V4-Flash-0731"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "choices": [
            {
              "finish_reason": "stop",
              "index": 0,
              "message": {
                "content": "Hello!",
                "role": "assistant"
              }
            }
          ],
          "created": 1787532386,
          "id": "chatcmpl-openrelay-abc123",
          "model": "deepseek-ai/DeepSeek-V4-Flash-0731",
          "object": "chat.completion",
          "usage": {
            "completion_tokens": 3,
            "prompt_tokens": 12,
            "total_tokens": 15
          }
        },
        "type": "json"
      },
      "related": [
        "/v1/models",
        "/v1/info",
        "/.well-known/x402"
      ]
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "max_tokens": {
                  "default": 512,
                  "maximum": 16384,
                  "minimum": 1,
                  "type": "integer"
                },
                "messages": {
                  "items": {
                    "properties": {
                      "content": {
                        "type": "string"
                      },
                      "role": {
                        "enum": [
                          "system",
                          "user",
                          "assistant"
                        ]
                      }
                    },
                    "required": [
                      "role",
                      "content"
                    ],
                    "type": "object"
                  },
                  "type": "array"
                },
                "model": {
                  "default": "deepseek-ai/DeepSeek-V4-Flash-0731",
                  "description": "Model id. Available: DeepSeek V4 Flash (400k ctx), Kimi K2.6 (240k ctx), MiniMax M2.7 (180k ctx). See GET /v1/models. Default: DeepSeek V4 Flash.",
                  "enum": [
                    "deepseek-ai/DeepSeek-V4-Flash-0731",
                    "moonshotai/Kimi-K2.6",
                    "MiniMaxAI/MiniMax-M2.7"
                  ],
                  "type": "string"
                },
                "stream": {
                  "default": false,
                  "type": "boolean"
                },
                "temperature": {
                  "default": 1,
                  "maximum": 2,
                  "minimum": 0,
                  "type": "number"
                }
              },
              "required": [
                "messages"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://openrelay.hggfffdfy687.workers.dev/v1/premium/chat/completions"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://openrelay.hggfffdfy687.workers.dev/v1/premium/chat/completions");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://openrelay.hggfffdfy687.workers.dev/v1/premium/chat/completions")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header