Credits · one key · four APIs
The model gateway that fits the tools you already run.
Invite-only signup, mint an mmux_ key, and point Claude Code, Cursor, Codex, or Gemini at ModelMux. One catalog, metered usage, no upstream credentials on your laptop.
- Four APIs
- Anthropic Messages, OpenAI Responses, Chat Completions, Gemini generateContent
- Metered credits
- Holds, grants, and per-token rates in micros. Balance never leaves the server.
- Operated catalog
- Plans, RPM, rewrite rules, and upstream keys without a deploy.
Models
Public slugs and raw ids both work — claude-sonnet-5 or anthropic/claude-sonnet-5.
| Model | Id | Context | In / 1M | Out / 1M |
|---|---|---|---|---|
| Loading catalog… | ||||
Four drop-in endpoints
POST https://api.modelmux.xyz/v1/messages
ANTHROPIC_BASE_URL=https://api.modelmux.xyz
ANTHROPIC_API_KEY=mmux_…
Origin only — do not append /v1.
POST https://api.modelmux.xyz/v1/chat/completions
base_url=https://api.modelmux.xyz/v1
model_provider = "modelmux"
base_url = "https://api.modelmux.xyz/v1"
wire_api = "responses"
Put model and model_provider above the table.
POST https://api.modelmux.xyz/v1beta/models/{model}:generateContent
x-goog-api-key: mmux_… or ?key=
For customers
- USD credits, tracked in micros. Holds on the way in, capture on the way out.
- Named keys. The secret is shown once, then only a prefix.
- Plan RPM and allowed models applied at the gateway.
- Usage by hour and model, with cost in credits.
Plans
List price is what you pay for the SKU. Included credits are a separate wallet grant — they can be less, equal, or more than the price.