packages/web/src/content/docs/sdk.mdx
import config from "../../../config.mjs"
export const typesUrl = ${config.github}/blob/dev/packages/sdk/js/src/gen/types.gen.ts
The opencode JS/TS SDK provides a type-safe client for interacting with the server. Use it to build integrations and control opencode programmatically.
Learn more about how the server works. For examples, check out the projects built by the community.
Install the SDK from npm:
npm install @opencode-ai/sdk
Create an instance of opencode:
import { createOpencode } from "@opencode-ai/sdk"
const { client } = await createOpencode()
This starts both a server and a client
| Option | Type | Description | Default |
|---|---|---|---|
hostname | string | Server hostname | 127.0.0.1 |
port | number | Server port | 4096 |
signal | AbortSignal | Abort signal for cancellation | undefined |
timeout | number | Timeout in ms for server start | 5000 |
config | Config | Configuration object | {} |
You can pass a configuration object to customize behavior. The instance still picks up your opencode.json, but you can override or add configuration inline:
import { createOpencode } from "@opencode-ai/sdk"
const opencode = await createOpencode({
hostname: "127.0.0.1",
port: 4096,
config: {
model: "anthropic/claude-3-5-sonnet-20241022",
},
})
console.log(`Server running at ${opencode.server.url}`)
opencode.server.close()
If you already have a running instance of opencode, you can create a client instance to connect to it:
import { createOpencodeClient } from "@opencode-ai/sdk"
const client = createOpencodeClient({
baseUrl: "http://localhost:4096",
})
| Option | Type | Description | Default |
|---|---|---|---|
baseUrl | string | URL of the server | http://localhost:4096 |
fetch | function | Custom fetch implementation | globalThis.fetch |
parseAs | string | Response parsing method | auto |
responseStyle | string | Return style: data or fields | fields |
throwOnError | boolean | Throw errors instead of return | false |
The SDK includes TypeScript definitions for all API types. Import them directly:
import type { Session, Message, Part } from "@opencode-ai/sdk"
All types are generated from the server's OpenAPI specification and available in the <a href={typesUrl}>types file</a>.
The SDK can throw errors that you can catch and handle:
try {
await client.session.get({ path: { id: "invalid-id" } })
} catch (error) {
console.error("Failed to get session:", (error as Error).message)
}
You can request structured JSON output from the model by specifying an format with a JSON schema. The model will use a StructuredOutput tool to return validated JSON matching your schema.
const result = await client.session.prompt({
path: { id: sessionId },
body: {
parts: [{ type: "text", text: "Research Anthropic and provide company info" }],
format: {
type: "json_schema",
schema: {
type: "object",
properties: {
company: { type: "string", description: "Company name" },
founded: { type: "number", description: "Year founded" },
products: {
type: "array",
items: { type: "string" },
description: "Main products",
},
},
required: ["company", "founded"],
},
},
},
})
// Access the structured output
console.log(result.data.info.structured_output)
// { company: "Anthropic", founded: 2021, products: ["Claude", "Claude API"] }
| Type | Description |
|---|---|
text | Default. Standard text response (no structured output) |
json_schema | Returns validated JSON matching the provided schema |
When using type: 'json_schema', provide:
| Field | Type | Description |
|---|---|---|
type | 'json_schema' | Required. Specifies JSON schema mode |
schema | object | Required. JSON Schema object defining the output structure |
retryCount | number | Optional. Number of validation retries (default: 2) |
If the model fails to produce valid structured output after all retries, the response will include a StructuredOutputError:
if (result.data.info.error?.name === "StructuredOutputError") {
console.error("Failed to produce structured output:", result.data.info.error.message)
console.error("Attempts:", result.data.info.error.retries)
}
required to specify which fields must be presentretryCount - increase for complex schemas, decrease for simple onesThe SDK exposes all server APIs through a type-safe client.
| Method | Description | Response |
|---|---|---|
global.health() | Check server health and version | { healthy: true, version: string } |
const health = await client.global.health()
console.log(health.data.version)
| Method | Description | Response |
|---|---|---|
app.log() | Write a log entry | boolean |
app.agents() | List all available agents | <a href={typesUrl}><code>Agent[]</code></a> |
// Write a log entry
await client.app.log({
body: {
service: "my-app",
level: "info",
message: "Operation completed",
},
})
// List available agents
const agents = await client.app.agents()
| Method | Description | Response |
|---|---|---|
project.list() | List all projects | <a href={typesUrl}><code>Project[]</code></a> |
project.current() | Get current project | <a href={typesUrl}><code>Project</code></a> |
// List all projects
const projects = await client.project.list()
// Get current project
const currentProject = await client.project.current()
| Method | Description | Response |
|---|---|---|
path.get() | Get current path | <a href={typesUrl}><code>Path</code></a> |
// Get current path information
const pathInfo = await client.path.get()
| Method | Description | Response |
|---|---|---|
config.get() | Get config info | <a href={typesUrl}><code>Config</code></a> |
config.providers() | List providers and default models | { providers: <a href={typesUrl}><code>Provider[]</code></a>, default: { [key: string]: string } } |
const config = await client.config.get()
const { providers, default: defaults } = await client.config.providers()
| Method | Description | Notes |
|---|---|---|
session.list() | List sessions | Returns <a href={typesUrl}><code>Session[]</code></a> |
session.get({ path }) | Get session | Returns <a href={typesUrl}><code>Session</code></a> |
session.children({ path }) | List child sessions | Returns <a href={typesUrl}><code>Session[]</code></a> |
session.create({ body }) | Create session | Returns <a href={typesUrl}><code>Session</code></a> |
session.delete({ path }) | Delete session | Returns boolean |
session.update({ path, body }) | Update session properties | Returns <a href={typesUrl}><code>Session</code></a> |
session.init({ path, body }) | Analyze app and create AGENTS.md | Returns boolean |
session.abort({ path }) | Abort a running session | Returns boolean |
session.share({ path }) | Share session | Returns <a href={typesUrl}><code>Session</code></a> |
session.unshare({ path }) | Unshare session | Returns <a href={typesUrl}><code>Session</code></a> |
session.summarize({ path, body }) | Summarize session | Returns boolean |
session.messages({ path }) | List messages in a session | Returns { info: <a href={typesUrl}><code>Message</code></a>, parts: <a href={typesUrl}><code>Part[]</code></a>}[] |
session.message({ path }) | Get message details | Returns { info: <a href={typesUrl}><code>Message</code></a>, parts: <a href={typesUrl}><code>Part[]</code></a>} |
session.prompt({ path, body }) | Send prompt message | body.noReply: true returns UserMessage (context only). Default returns <a href={typesUrl}><code>AssistantMessage</code></a> with AI response. Supports body.outputFormat for structured output |
session.command({ path, body }) | Send command to session | Returns { info: <a href={typesUrl}><code>AssistantMessage</code></a>, parts: <a href={typesUrl}><code>Part[]</code></a>} |
session.shell({ path, body }) | Run a shell command | Returns <a href={typesUrl}><code>AssistantMessage</code></a> |
session.revert({ path, body }) | Revert a message | Returns <a href={typesUrl}><code>Session</code></a> |
session.unrevert({ path }) | Restore reverted messages | Returns <a href={typesUrl}><code>Session</code></a> |
postSessionByIdPermissionsByPermissionId({ path, body }) | Respond to a permission request | Returns boolean |
// Create and manage sessions
const session = await client.session.create({
body: { title: "My session" },
})
const sessions = await client.session.list()
// Send a prompt message
const result = await client.session.prompt({
path: { id: session.id },
body: {
model: { providerID: "anthropic", modelID: "claude-3-5-sonnet-20241022" },
parts: [{ type: "text", text: "Hello!" }],
},
})
// Inject context without triggering AI response (useful for plugins)
await client.session.prompt({
path: { id: session.id },
body: {
noReply: true,
parts: [{ type: "text", text: "You are a helpful assistant." }],
},
})
| Method | Description | Response |
|---|---|---|
find.text({ query }) | Search for text in files | Array of match objects with path, lines, line_number, absolute_offset, submatches |
find.files({ query }) | Find files and directories by name | string[] (paths) |
find.symbols({ query }) | Find workspace symbols | <a href={typesUrl}><code>Symbol[]</code></a> |
file.read({ query }) | Read a file | { type: "raw" | "patch", content: string } |
file.status({ query? }) | Get status for tracked files | <a href={typesUrl}><code>File[]</code></a> |
find.files supports a few optional query fields:
type: "file" or "directory"directory: override the project root for the searchlimit: max results (1–200)// Search and read files
const textResults = await client.find.text({
query: { pattern: "function.*opencode" },
})
const files = await client.find.files({
query: { query: "*.ts", type: "file" },
})
const directories = await client.find.files({
query: { query: "packages", type: "directory", limit: 20 },
})
const content = await client.file.read({
query: { path: "src/index.ts" },
})
| Method | Description | Response |
|---|---|---|
tui.appendPrompt({ body }) | Append text to the prompt | boolean |
tui.openHelp() | Open the help dialog | boolean |
tui.openSessions() | Open the session selector | boolean |
tui.openThemes() | Open the theme selector | boolean |
tui.openModels() | Open the model selector | boolean |
tui.submitPrompt() | Submit the current prompt | boolean |
tui.clearPrompt() | Clear the prompt | boolean |
tui.executeCommand({ body }) | Execute a command | boolean |
tui.showToast({ body }) | Show toast notification | boolean |
// Control TUI interface
await client.tui.appendPrompt({
body: { text: "Add this to prompt" },
})
await client.tui.showToast({
body: { message: "Task completed", variant: "success" },
})
| Method | Description | Response |
|---|---|---|
auth.set({ ... }) | Set authentication credentials | boolean |
await client.auth.set({
path: { id: "anthropic" },
body: { type: "api", key: "your-api-key" },
})
| Method | Description | Response |
|---|---|---|
event.subscribe() | Server-sent events stream | Server-sent events stream |
// Listen to real-time events
const events = await client.event.subscribe()
for await (const event of events.stream) {
console.log("Event:", event.type, event.properties)
}