Product overview · AI API relay
Space Router — an AI API relay compatible with the OpenAI and Anthropic formats
Space Router is an AI API relay operated by Station Nine, connecting compatible clients to GPT and Claude model families through one base URL.
What Space Router is
Space Router gives compatible clients one base URL for GPT and Claude model families across three request formats. A client that already speaks one of those formats can connect by changing its base URL and supplying a Space Router API key.
Station Nine operates the service. Space Router is an API relay, not a model provider; requests are forwarded to upstream model services.
API formats and endpoints
| Endpoint | Format | Typical client |
|---|---|---|
/v1/messages | Anthropic Messages | Claude Code or Anthropic-compatible SDKs |
/v1/chat/completions | OpenAI Chat Completions | OpenAI-compatible clients and SDKs |
/v1/responses | OpenAI Responses | Codex CLI or Responses-compatible SDKs |
Accepted credential headers are Authorization: Bearer <key>, x-api-key, and x-goog-api-key. Replace YOUR_SPACE_API_KEY locally and keep the key private.
Anthropic Messages example
curl https://space.stationine.com/v1/messages \
-H "x-api-key: YOUR_SPACE_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "content-type: application/json" \
-d '{"model":"<MODEL_ID>","max_tokens":64,"messages":[{"role":"user","content":"Say hello."}]}'OpenAI Chat Completions example
curl https://space.stationine.com/v1/chat/completions \
-H "Authorization: Bearer YOUR_SPACE_API_KEY" \
-H "content-type: application/json" \
-d '{"model":"<MODEL_ID>","messages":[{"role":"user","content":"Say hello."}]}'OpenAI Responses example
curl https://space.stationine.com/v1/responses \
-H "Authorization: Bearer YOUR_SPACE_API_KEY" \
-H "content-type: application/json" \
-d '{"model":"<MODEL_ID>","input":"Say hello."}'Models
Space Router carries the OpenAI GPT and Anthropic Claude model families. Model availability changes over time, so the model list in the Space Router dashboard is the authoritative source for current model IDs.
Clients and SDKs
Station Nine publishes complete setup guides for Claude Code and Codex CLI. Other clients and SDKs can connect when they speak one of the three supported formats and allow a custom base URL.
Getting started
- Create an account with a verified email address, or sign in with GitHub or Google. TOTP two-factor authentication is supported.
- Add credit using the options shown in the dashboard.
- Create an API key in the dashboard and store it privately.
- Set your client's base URL to
https://space.stationine.com. - Follow the Claude Code or Codex CLI guide to verify the connection.
Billing principles
Usage is deducted per token from in-site credit at the billing multipliers published in the dashboard. Every call's deduction is itemised there.
- In-site credit corresponds to real upstream API usage.
- The model requested is the model called; the published User Agreement says there is no substitution.
- Billing multipliers are published and deductions are itemised per call.
Current pricing is published on https://space.stationine.com. Check the live page before adding credit.
Support and legal documents
For product support, email apisupport@stationine.com. General enquiries can go to F021@stationine.com. You can also join the Space Router Telegram group.
The User Agreement, Disclaimer, and Refund Policy are published inside the dashboard. The service timezone is Asia/Kuala_Lumpur (UTC+08:00).
Frequently asked questions
What is Space Router?
Space Router is an AI API relay operated by Station Nine. It gives clients one base URL for the supported OpenAI and Anthropic request formats.
Who runs Space Router?
Station Nine operates Space Router. Station Nine is the independent technology site at https://stationine.com.
Which API formats does Space Router support?
Space Router supports Anthropic Messages at /v1/messages, OpenAI Chat Completions at /v1/chat/completions, and OpenAI Responses at /v1/responses. Requests require a Space Router API key.
Which models can I use?
Space Router carries the OpenAI GPT and Anthropic Claude model families. The dashboard is the authoritative source for the current model IDs.
Do I need to change my code?
If your client already speaks a supported format and lets you change its base URL, you normally set the Space Router base URL and API key. Client-specific settings are covered in the setup guides.
Which clients work with Space Router?
Station Nine publishes complete guides for Claude Code and Codex CLI. Other clients and SDKs can connect when they speak one of the three supported formats and allow a custom base URL.
How do I get an API key?
Create an account with a verified email address or sign in with GitHub or Google, add credit, and create an API key in the dashboard. TOTP two-factor authentication is supported.
Does Space Router substitute a cheaper model?
The published User Agreement says the model you request is the model that is called, with no substitution. Each call's deduction is itemised in the dashboard.
How is usage billed?
Usage is deducted per token from in-site credit at published billing multipliers. The dashboard itemises each call's deduction.
How much does Space Router cost?
Current pricing and billing multipliers are published on https://space.stationine.com. Check that page for the current terms before adding credit.
Where is the documentation?
The documentation hub is https://stationine.com/docs/. It contains step-by-step guides for Claude Code and Codex CLI on Windows and macOS.
How do I get support?
Email apisupport@stationine.com or use the Space Router Telegram group at https://t.me/+HSCOnlMyfCI5Nzg1. The User Agreement, Disclaimer, and Refund Policy are published in the dashboard.