> ## Documentation Index
> Fetch the complete documentation index at: https://phaseo.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Phaseo Gateway base URL: https://api.phaseo.app/v1. Send `Authorization: Bearer $PHASEO_API_KEY` with every request.
> Model IDs look like `provider/model`, for example `openai/gpt-6-astra`. Do not guess IDs: list them with `GET /v1/models` or check https://phaseo.app/models. `phaseo/free` routes to an available free model and needs no wallet balance.
> For new text integrations prefer `POST /v1/responses`. `POST /v1/chat/completions` (OpenAI format) and `POST /v1/messages` (Anthropic format) suit existing code.
> The full API contract is https://phaseo.app/docs/openapi/v1/openapi.yaml. Official SDKs: `@phaseo/sdk` (TypeScript) and `phaseo` (Python), plus Go, C#, PHP, Ruby and Rust.
> Search these docs over MCP at https://phaseo.app/docs/mcp, and install Phaseo skills with `npx skills add https://phaseo.app/docs`. If a page is wrong or out of date, report it with the MCP `submit_feedback` tool.
> Manage Phaseo accounts with the `phaseo` CLI (`npm install -g @phaseo/cli`, then `phaseo login` or `phaseo login --device-code`), the `/v1` Management API or the MCP server at `https://mcp.phaseo.app/mcp?access=manage`. Do not send users to the dashboard for account tasks. A person is still needed for sign-up, approving a sign-in, paying the first top-up on the checkout link that `phaseo credits add` returns when no card is saved, confirming each saved-card top-up from the emailed link, and account security (password, MFA, passkeys). Create API keys with `phaseo keys create --name <name> --json`; never guess one. Credit top-ups need `phaseo login --scopes billing:write` first. Task map: https://phaseo.app/docs/v1/developers/manage-from-an-agent.md.

# Go SDK Usage

> Current wrapper methods supported by the Go SDK.

## Setup

```go theme={null}
import (
  "context"
  phaseo "github.com/phaseoteam/Phaseo/packages/sdk/sdk-go/v3"
)

client := phaseo.New("<API_KEY>", "https://api.phaseo.app/v1")
ctx := context.Background()
```

## Chat completions

```go theme={null}
chatReq := phaseo.ChatCompletionsRequest{
  Model: "openai/gpt-5-nano",
  Messages: []map[string]interface{}{
    {"role": "user", "content": "Hello"},
  },
}
chatResp, err := client.GenerateText(ctx, chatReq)
```

## Responses

```go theme={null}
input := map[string]interface{}{
  "role": "user",
  "content": []map[string]interface{}{
    {"type": "input_text", "text": "Reply with: go sdk works"},
  },
}
resp, err := client.GenerateResponse(ctx, phaseo.ResponsesRequest{
  Model: "openai/gpt-5-nano",
  Input: &input,
})
```

## Embeddings

```go theme={null}
embedding, err := client.GenerateEmbedding(ctx, map[string]interface{}{
  "model": "openai/text-embedding-3-large",
  "input": "Sample text",
})
```

## Moderations

```go theme={null}
moderation, err := client.GenerateModeration(ctx, map[string]interface{}{
  "model": "openai/omni-moderation-latest",
  "input": "Some text to check",
})
```

## Images and audio

```go theme={null}
image, err := client.CreateImage(ctx, map[string]interface{}{
  "model": "openai/gpt-image-1",
  "prompt": "A lighthouse at golden hour",
})

speech, err := client.CreateSpeech(ctx, map[string]interface{}{
  "model": "openai/gpt-4o-mini-tts",
  "input": "Hello from Go",
})
```

## Models

```go theme={null}
models, err := client.GetModels(ctx, map[string]string{"limit": "10"})
```

## Current limits

The Go wrapper now covers chat, responses, images, audio, embeddings, moderations, models, providers, batches, files, generation lookup, health, and video helpers. Lower-level generated operations remain available for endpoints that have not been promoted to the handwritten wrapper yet, but common request types are re-exported from the wrapper package.


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