# Plexum-minimax-provider

Plexum ProviderPlugin that serves **MiniMax** models via MiniMax's
Anthropic-compatible HTTP endpoint.

## Status

**v0.1 — current**: API key auth, streaming SSE, declared models
`MiniMax-M2.7` + `MiniMax-M2.7-highspeed`. Backend fixed to `api`
(global `https://api.minimax.io/anthropic` or CN `https://api.minimaxi.com/anthropic`).

**Deferred**: OAuth (Code Plan portal), MiniMax Portal provider, image /
TTS / video / music providers (separate plugins later if wanted).

## API key + model matrix

MiniMax issues two key types from the same Anthropic-compatible endpoint;
this plugin sends both with `Authorization: Bearer <key>` and lets the
server decide. The key prefix tells you which billing model you're on:

| key prefix | billing | `MiniMax-M2.7` | `MiniMax-M2.7-highspeed` |
|---|---|---|---|
| `sk-cp-...` | **Token Plan** (per-plan quota) | ✅ included | ❌ `Token Plan Starter (0/0 used)` — highspeed is NOT in the base Token Plan |
| `sk-api-...` | **pay-per-token** (per-request billed) | ✅ if balance > 0; else `insufficient_balance (1008)` | ✅ if balance > 0 |

**Takeaway**: if you only have a Token Plan key, set the agent's model
to `MiniMax-M2.7` (base). For the highspeed variant you need a funded
`sk-api-` key. The plugin doesn't reject highspeed at startup — the
error surfaces in the agent's response when the model is invoked.

## Install

```bash
cd ~/Plexum-minimax-provider
./scripts/install.sh
```

Then:

1. **Write API key** to `~/.plexum/plugins/plexum-minimax-provider/config.json`:
   ```json
   {
     "api_key": "sk-cp-..."
   }
   ```
   (`chmod 600` it.)

2. **Allow the plugin** in `~/.plexum/plexum.json`:
   ```json
   {"plugins": {"allow": ["plexum-minimax-provider"]}}
   ```

3. **Point an agent at a MiniMax model**:
   ```bash
   plexum agent-add --model MiniMax-M2.7 my-agent
   ```

4. **Restart** the gateway and talk:
   ```bash
   systemctl --user restart plexum
   plexum say --agent-id my-agent --session-id $(plexum new-session --agent-id my-agent) "hello"
   ```

## Config options

| Field | Default | Notes |
|---|---|---|
| `api_key` | (required) | `sk-cp-...` style key from MiniMax |
| `region` | `global` | `cn` switches to `api.minimaxi.com` |
| `base_url` | – | override either region's default |
| `max_tokens_default` | `4096` | used when `TurnRequest.MaxTokens` is unset |

## Architecture

- `internal/anthropic/` — minimal HTTP+SSE Anthropic Messages client
- `internal/translate/` — `canonical.TurnRequest` ↔ Anthropic Messages,
  SSE Event → `canonical.TurnEvent` per-block state machine
- `cmd/plexum-minimax-provider-plugin/` — Plexum SDK ProviderPlugin entry

Both `text`, `thinking`, and `tool_use` content blocks round-trip
losslessly (signatures preserved for thinking blocks).

## License

Same as Plexum.
