GPT and Codex API via a monthly card

Redeem a GPT / Codex card, create your own API key, and point an OpenAI-compatible client at https://gw.apimonth.com/v1. Claude Code: ANTHROPIC_BASE_URL=https://gw.apimonth.com with GPT chat models such as gpt-5.5. Route identifiers do not use an openai/ prefix.

ApiMonth is not an official OpenAI website.

Endpoints on this line

• POST /v1/chat/completions
• POST /v1/responses
• POST /v1/messages
• wss://gw.apimonth.com/v1/responses
• POST /v1/images/generations
• POST /v1/images/edits

GPT Image uses POST /v1/images/generations and POST /v1/images/edits. Example identifiers: gpt-image-1.5, gpt-image-2, gpt-image-2.5. Billed per image, not by tokens. Image models are rejected on Chat Completions.

Example Chat Completions identifier: gpt-5.5. Query GET /v1/models for the currently admitted list.

Published rates

Chat figures are credit / 1M tokens; image models are credit / image; video is $ / second. These are live sale rates (default 70% off, Gemini and GPT Luna models 20% off, Grok chat 70% off, image models $0.01–$0.08 per image, and Grok Video 1.5 $0.05/second; the current rate is shown here), not an upstream invoice. New packs last 30 days; historical cards convert to a permanent balance. Cache writes are not part of the public billing claim.

Chat: credit / million tokens. Images: credit / image. Video: $ / second. Live billable prices; — means unavailable or unsupported.

First request

curl https://gw.apimonth.com/v1/chat/completions \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_APIMONTH_API_KEY' \
  -d '{"model":"gpt-5.5","messages":[{"role":"user","content":"Hello"}]}'

Full API quickstart · All models

GPT / Codex 专线

兑换 GPT / Codex 月卡后，可用 Chat Completions、Responses、Responses WebSocket 和 Anthropic Messages（Claude Code）。生图走 POST /v1/images/generations 与 /v1/images/edits。模型标识不要加 openai/ 前缀。ApiMonth 不是 OpenAI 官方网站。

本组模型接口

• POST /v1/chat/completions
• POST /v1/responses
• POST /v1/messages
• wss://gw.apimonth.com/v1/responses
• POST /v1/images/generations
• POST /v1/images/edits

GPT Image 使用 POST /v1/images/generations 与 POST /v1/images/edits。示例标识：gpt-image-1.5、gpt-image-2、gpt-image-2.5。按张计费，不按 token。生图模型不能走 Chat Completions。

Chat Completions 示例标识：gpt-5.5。当前可用列表以 GET /v1/models 为准。

公开单价

对话按额度 / 百万 tokens，生图按额度 / 张，视频按 $ / 秒。下列是官网实时记账价（默认三折，Gemini 与 GPT Luna 系列八折，Grok 对话三折，生图按模型 $0.01–$0.08 / 张，Grok Video 1.5 为 $0.05 / 秒；当前价格以实时模型价为准），不是上游发票。调用从共用额度扣费；新积分包 30 天有效，历史卡转为永久余额。宣传范围不含缓存写入。

对话：额度 / 百万 tokens；图片：额度 / 张；视频：$ / 秒。实时记账价；— 表示未报价或未支持。

第一条请求

curl https://gw.apimonth.com/v1/chat/completions \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_APIMONTH_API_KEY' \
  -d '{"model":"gpt-5.5","messages":[{"role":"user","content":"Hello"}]}'

完整 API 接入说明 · 全部模型