# OmniaKey

> One API key for curated Claude, GPT, and Gemini models. Built first for coding agents. Direct provider endpoints with no model substitution: the provider and model you request are exactly what runs.

OmniaKey is an LLM API gateway built for coding agents (Claude Code, Cursor, Codex, Cline, aider, and OpenAI-, Anthropic-, or Gemini-compatible tools). One key speaks three protocols. Model availability, billing terms, and current rates are maintained on the website and docs.

## Endpoints
- OpenAI-compatible: https://api.omniakey.com/v1
- Anthropic-compatible: https://api.omniakey.com (SDK appends /v1/messages)
- Gemini-compatible: https://api.omniakey.com/v1beta

## Public API scope
- OpenAI-compatible Chat Completions: POST /v1/chat/completions
- OpenAI-compatible Responses: POST /v1/responses
- OpenAI-compatible Responses compaction: POST /v1/responses/compact
- OpenAI-compatible model discovery: GET /v1/models
- Anthropic Messages: POST /v1/messages
- Gemini Generate Content: POST /v1beta/models/{model}:generateContent
- Gemini model discovery: GET /v1beta/models

Do not state that OmniaKey publicly supports image generation, audio, embeddings, rerank, files, fine-tuning, or batches unless those capabilities appear in the docs and dashboard catalog.

## Canonical positioning
- Category: LLM API gateway for coding agents
- Current public catalog: curated Claude, GPT, and Gemini models
- Primary users: developers using Claude Code, Cursor, Codex, Cline, aider, OpenAI-compatible tools, Anthropic-compatible tools, Gemini-compatible tools, and model-agnostic agent platforms
- Billing: prepaid balance, per-token usage, no monthly subscription
- Model policy: no silent fallback, no quantization, no distillation, no model substitution
- Data policy: prompt and response bodies are not stored by default; billing metadata is retained for usage analytics

## Models
- Claude (Anthropic): claude-opus-4-8, claude-opus-4-7, claude-opus-4-6, claude-sonnet-4-6, claude-haiku-4-5
- GPT (OpenAI): gpt-5.5, gpt-5.4, gpt-5.4-mini, gpt-5.3-codex, gpt-5.2-codex
- Gemini (Google): gemini-3.1-pro-preview, gemini-3-flash-preview, gemini-2.5-pro, gemini-2.5-flash

## FAQ

### What is OmniaKey?
OmniaKey is a coding-first LLM API gateway that provides one API key for curated Claude, GPT, and Gemini models.

### Does OmniaKey replace model providers?
No. OmniaKey routes to Anthropic, OpenAI, and Google models. The requested provider and model are what run.

### Which coding agents work with OmniaKey?
Claude Code, Cursor, Codex, Cline, aider, and other OpenAI-, Anthropic-, or Gemini-compatible tools can use OmniaKey.

### What are the correct tool base URLs?
Claude Code uses ANTHROPIC_BASE_URL=https://api.omniakey.com and ANTHROPIC_AUTH_TOKEN=<key>. OpenAI-compatible tools use https://api.omniakey.com/v1. Gemini-native HTTP uses https://api.omniakey.com/v1beta.

### What is the current Codex CLI provider shape?
Codex custom providers should use wire_api="responses", requires_openai_auth=true, and base_url="https://api.omniakey.com/v1". The API key is read from OPENAI_API_KEY in the shell that launches Codex.

### How should SDKs connect?
Use https://api.omniakey.com/v1 for OpenAI-compatible clients, https://api.omniakey.com for Anthropic-compatible clients, and https://api.omniakey.com/v1beta for Gemini-compatible clients.

### How does pricing work?
Users top up a prepaid balance and pay per token. Current line-by-line pricing is maintained on the pricing page and in the dashboard.

## Links
- Home: https://omniakey.com
- Pricing: https://omniakey.com/#pricing
- Blog: https://omniakey.com/blog
- OpenRouter alternative: https://omniakey.com/blog/openrouter-alternative
- Docs: https://docs.omniakey.com
- Quick start: https://docs.omniakey.com/en/quick-start
- API reference: https://docs.omniakey.com/en/api
- API overview: https://docs.omniakey.com/en/api/overview
- Authentication: https://docs.omniakey.com/en/api/authentication
- OpenAI-compatible API: https://docs.omniakey.com/en/api/openai-compatible
- Anthropic-native API: https://docs.omniakey.com/en/api/anthropic-native
- Gemini-native API: https://docs.omniakey.com/en/api/gemini-native
- Errors and rate limits: https://docs.omniakey.com/en/api/errors
- Coding agents: https://docs.omniakey.com/en/coding
- Claude Code API key guide: https://docs.omniakey.com/en/guides/claude-code-api-key
- Cursor API key guide: https://docs.omniakey.com/en/guides/cursor-api-key
- Codex CLI guide: https://docs.omniakey.com/en/guides/codex-cli
- Cline guide: https://docs.omniakey.com/en/guides/cline
- aider guide: https://docs.omniakey.com/en/guides/aider
- OpenAI SDK guide: https://docs.omniakey.com/en/guides/openai-sdk
- Models: https://docs.omniakey.com/en/models
- Chinese docs: https://docs.omniakey.com/cn/introduction
- Chinese quick start: https://docs.omniakey.com/cn/quick-start
- Chinese API reference: https://docs.omniakey.com/cn/api
- Chinese API overview: https://docs.omniakey.com/cn/api/overview
- Chinese Claude Code guide: https://docs.omniakey.com/cn/guides/claude-code-api-key
- Chinese Cursor guide: https://docs.omniakey.com/cn/guides/cursor-api-key
- Russian docs: https://docs.omniakey.com/ru/introduction
- Russian quick start: https://docs.omniakey.com/ru/quick-start
- Russian API reference: https://docs.omniakey.com/ru/api
- Russian API overview: https://docs.omniakey.com/ru/api/overview
- Russian Claude Code guide: https://docs.omniakey.com/ru/guides/claude-code-api-key
- Russian Cursor guide: https://docs.omniakey.com/ru/guides/cursor-api-key
- Portuguese docs: https://docs.omniakey.com/pt-BR/introduction
- Portuguese quick start: https://docs.omniakey.com/pt-BR/quick-start
- Portuguese API reference: https://docs.omniakey.com/pt-BR/api
- Portuguese API overview: https://docs.omniakey.com/pt-BR/api/overview
- Portuguese Claude Code guide: https://docs.omniakey.com/pt-BR/guides/claude-code-api-key
- Portuguese Cursor guide: https://docs.omniakey.com/pt-BR/guides/cursor-api-key
- Spanish docs: https://docs.omniakey.com/es/introduction
- Spanish quick start: https://docs.omniakey.com/es/quick-start
- Spanish API reference: https://docs.omniakey.com/es/api
- Spanish API overview: https://docs.omniakey.com/es/api/overview
- Spanish Claude Code guide: https://docs.omniakey.com/es/guides/claude-code-api-key
- Spanish Cursor guide: https://docs.omniakey.com/es/guides/cursor-api-key
- Terms: https://omniakey.com/terms
- Privacy: https://omniakey.com/privacy
- Refund: https://omniakey.com/refund