Add OhMyProxy as a provider in your ~/.config/opencode/opencode.jsonc.

Provider Configuration

{
  "provider": {
    "OhMyProxyV2": {
      "options": {
        "baseURL": "http://127.0.0.1:5555/v1",
        "apiKey": "none"
      },
      "models": {
        "kilo-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        },
        "zen-noapi-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        },
        "zen-api-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        },
        "pekpik-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        },
        "mistral-api-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        },
        "zai-api-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        },
        "auto-free": {
          "reasoning": true, "tool_call": true,
          "interleaved": { "field": "reasoning_content" },
          "cost": { "input": 10, "output": 10 },
          "limit": { "context": 200000, "output": 100000 }
        }
      }
    }
  }
}

Proxy Names (model key)

Model Key	Routes To
kilo-free	Kilo Gateway models
zen-noapi-free	OpenCode Zen (no auth, free models)
zen-api-free	OpenCode Zen (API keys, all models)
pekpik-free	Pekpik community keys
mistral-api-free	Mistral AI (codestral, devstral)
zai-api-free	Z.ai (GLM-4.5/4.7 Flash)
auto-free	Round-robin across all enabled proxies

Cost Configuration

OpenCode's cost.input / cost.output are $ per 1M tokens. Our proxy rate is $1/100k tokens, so use 10.

Desired Rate	cost value
$1 / 100k tokens (ours)	10
$1 / 1M tokens	1
$0.50 / 1M tokens	0.5

API Authentication

If proxy keys are enabled, add apiKey to your provider config:

"options": {
  "baseURL": "http://127.0.0.1:5555/v1",
  "apiKey": "omp_<your-key>"
}

Generate keys from Settings → Proxy API Keys in the WebUI. When no keys exist, endpoints are open.

Load Balancing

For zen-api-free, set strategy in Settings → Server Configuration:

• Random — picks a key at random
• Round-Robin — cycles through keys
• Least-Used — fewest logged requests

Agent Variants (oh-my-opencode-slim)

{
  "presets": {
    "omniroute": {
      "orchestrator": { "model": "OhMyProxyV2/auto-free", "variant": "high" },
      "librarian":   { "model": "OhMyProxyV2/auto-free", "variant": "low" }
    }
  }
}

Prerequisites

• OhMyProxy running: python app.py
• Server at http://localhost:5555
• OpenCode v1.2+ with custom provider support
• If using zen-api-free, add API keys via WebUI → Settings

Got it