# CrossModel

CrossModel is a multi-provider, OpenAI- and Anthropic-compatible API gateway. It provides one API key, one base_url, usage-based billing, and access to major models including OpenAI, Anthropic, DeepSeek, and Google.

Use CrossModel when you want a single OpenAI-compatible or Anthropic-compatible integration layer for multiple model providers, centralized API keys, model discovery, usage tracking, and USD-based billing.

## Important pages

- Home: https://www.crossmodel.ai/
- Models and pricing: https://www.crossmodel.ai/models
- FAQ: https://www.crossmodel.ai/faq
- Documentation: https://www.crossmodel.ai/docs
- Integrations: https://www.crossmodel.ai/integrations
- Terms: https://www.crossmodel.ai/terms
- Privacy: https://www.crossmodel.ai/privacy

## Documentation

- Introduction: https://www.crossmodel.ai/docs (Markdown: https://www.crossmodel.ai/docs.md)
- Chat Completions: https://www.crossmodel.ai/docs/api-reference/chat (Markdown: https://www.crossmodel.ai/docs/api-reference/chat.md)
- Credits: https://www.crossmodel.ai/docs/api-reference/credits (Markdown: https://www.crossmodel.ai/docs/api-reference/credits.md)
- Messages: https://www.crossmodel.ai/docs/api-reference/messages (Markdown: https://www.crossmodel.ai/docs/api-reference/messages.md)
- Models: https://www.crossmodel.ai/docs/api-reference/models (Markdown: https://www.crossmodel.ai/docs/api-reference/models.md)
- Responses: https://www.crossmodel.ai/docs/api-reference/responses (Markdown: https://www.crossmodel.ai/docs/api-reference/responses.md)
- Usage: https://www.crossmodel.ai/docs/api-reference/usage (Markdown: https://www.crossmodel.ai/docs/api-reference/usage.md)
- Authentication & API keys: https://www.crossmodel.ai/docs/authentication (Markdown: https://www.crossmodel.ai/docs/authentication.md)
- Billing, balance & usage: https://www.crossmodel.ai/docs/billing (Markdown: https://www.crossmodel.ai/docs/billing.md)
- Compatibility & migration: https://www.crossmodel.ai/docs/compatibility (Markdown: https://www.crossmodel.ai/docs/compatibility.md)
- Errors & troubleshooting: https://www.crossmodel.ai/docs/errors (Markdown: https://www.crossmodel.ai/docs/errors.md)
- Multimodal input: https://www.crossmodel.ai/docs/guides/multimodal (Markdown: https://www.crossmodel.ai/docs/guides/multimodal.md)
- Production best practices: https://www.crossmodel.ai/docs/guides/production (Markdown: https://www.crossmodel.ai/docs/guides/production.md)
- Streaming: https://www.crossmodel.ai/docs/guides/streaming (Markdown: https://www.crossmodel.ai/docs/guides/streaming.md)
- JSON & structured output: https://www.crossmodel.ai/docs/guides/structured-output (Markdown: https://www.crossmodel.ai/docs/guides/structured-output.md)
- Function calling & tools: https://www.crossmodel.ai/docs/guides/tool-calling (Markdown: https://www.crossmodel.ai/docs/guides/tool-calling.md)
- Model aliases: https://www.crossmodel.ai/docs/model-aliases (Markdown: https://www.crossmodel.ai/docs/model-aliases.md)
- Model IDs & capabilities: https://www.crossmodel.ai/docs/models-and-capabilities (Markdown: https://www.crossmodel.ai/docs/models-and-capabilities.md)
- Quickstart: https://www.crossmodel.ai/docs/quickstart (Markdown: https://www.crossmodel.ai/docs/quickstart.md)
- Rate limits & retries: https://www.crossmodel.ai/docs/rate-limits (Markdown: https://www.crossmodel.ai/docs/rate-limits.md)
- Service fee on top-ups: https://www.crossmodel.ai/docs/service-fee (Markdown: https://www.crossmodel.ai/docs/service-fee.md)

## Integrations

- Aider: https://www.crossmodel.ai/integrations/aider (Markdown: https://www.crossmodel.ai/integrations/aider.md)
- Claude Code: https://www.crossmodel.ai/integrations/claude-code (Markdown: https://www.crossmodel.ai/integrations/claude-code.md)
- Claude Desktop: https://www.crossmodel.ai/integrations/claude-desktop (Markdown: https://www.crossmodel.ai/integrations/claude-desktop.md)
- Cline: https://www.crossmodel.ai/integrations/cline (Markdown: https://www.crossmodel.ai/integrations/cline.md)
- Codex in ChatGPT and Codex CLI: https://www.crossmodel.ai/integrations/codex (Markdown: https://www.crossmodel.ai/integrations/codex.md)
- Continue: https://www.crossmodel.ai/integrations/continue (Markdown: https://www.crossmodel.ai/integrations/continue.md)
- Cursor: https://www.crossmodel.ai/integrations/cursor (Markdown: https://www.crossmodel.ai/integrations/cursor.md)
- DeepSeek Harness: https://www.crossmodel.ai/integrations/deepseek-harness (Markdown: https://www.crossmodel.ai/integrations/deepseek-harness.md)
- Hermes Agent: https://www.crossmodel.ai/integrations/hermes (Markdown: https://www.crossmodel.ai/integrations/hermes.md)
- Kilo Code: https://www.crossmodel.ai/integrations/kilo-code (Markdown: https://www.crossmodel.ai/integrations/kilo-code.md)
- Open WebUI: https://www.crossmodel.ai/integrations/open-webui (Markdown: https://www.crossmodel.ai/integrations/open-webui.md)
- OpenClaw: https://www.crossmodel.ai/integrations/openclaw (Markdown: https://www.crossmodel.ai/integrations/openclaw.md)
- OpenCode: https://www.crossmodel.ai/integrations/opencode (Markdown: https://www.crossmodel.ai/integrations/opencode.md)
- Pi Coding Agent: https://www.crossmodel.ai/integrations/pi (Markdown: https://www.crossmodel.ai/integrations/pi.md)
- Windsurf: https://www.crossmodel.ai/integrations/windsurf (Markdown: https://www.crossmodel.ai/integrations/windsurf.md)
- Zed: https://www.crossmodel.ai/integrations/zed (Markdown: https://www.crossmodel.ai/integrations/zed.md)
## API endpoints

- OpenAI-compatible API base URL: https://api.crossmodel.ai/v1
- Anthropic-compatible API base URL: https://api.crossmodel.ai