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Describes how to interact with opencode server over HTTP.

Rocco-Gossmann By Rocco-Gossmann schedule Updated 2/19/2026
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name: opencode-docs-server description: Describes how to interact with opencode server over HTTP.

The opencode serve command runs a headless HTTP server that exposes an OpenAPI endpoint that an opencode client can use.

Usage

opencode serve [--port <number>] [--hostname <string>] [--cors <origin>]

Options

Flag Description Default
--port Port to listen on 4096
--hostname Hostname to listen on 127.0.0.1
--mdns Enable mDNS discovery false
--mdns-domain Custom domain name for mDNS service opencode.local
--cors Additional browser origins to allow []

--cors can be passed multiple times:

opencode serve --cors http://localhost:5173 --cors https://app.example.com

Authentication

Set OPENCODE_SERVER_PASSWORD to protect the server with HTTP basic auth. The username defaults to opencode, or set OPENCODE_SERVER_USERNAME to override it. This applies to both opencode serve and opencode web.

OPENCODE_SERVER_PASSWORD=your-password opencode serve

How it works

When you run opencode it starts a TUI and a server. Where the TUI is the client that talks to the server. The server exposes an OpenAPI 3.1 spec endpoint. This endpoint is also used to generate an SDK.

:::tip Use the opencode server to interact with opencode programmatically. :::

This architecture lets opencode support multiple clients and allows you to interact with opencode programmatically.

You can run opencode serve to start a standalone server. If you have the opencode TUI running, opencode serve will start a new server.

Connect to an existing server

When you start the TUI it randomly assigns a port and hostname. You can instead pass in the --hostname and --port flags. Then use this to connect to its server.

The /tui endpoint can be used to drive the TUI through the server. For example, you can prefill or run a prompt. This setup is used by the OpenCode IDE plugins.

Spec

The server publishes an OpenAPI 3.1 spec that can be viewed at:

http://<hostname>:<port>/doc

For example, http://localhost:4096/doc. Use the spec to generate clients or inspect request and response types. Or view it in a Swagger explorer.

APIs

The opencode server exposes the following APIs.

Global

Method Path Description Response
GET /global/health Get server health and version { healthy: true, version: string }
GET /global/event Get global events (SSE stream) Event stream

Project

Method Path Description Response
GET /project List all projects Project[]
GET /project/current Get the current project Project

Path & VCS

Method Path Description Response
GET /path Get the current path Path
GET /vcs Get VCS info for the current project VcsInfo

Instance

Method Path Description Response
POST /instance/dispose Dispose the current instance boolean

Config

Method Path Description Response
GET /config Get config info Config
PATCH /config Update config Config
GET /config/providers List providers and default models { providers: Provider[], default: { [key: string]: string } }

Provider

Method Path Description Response
GET /provider List all providers { all: Provider[], default: {...}, connected: string[] }
GET /provider/auth Get provider authentication methods { [providerID: string]: ProviderAuthMethod[] }
POST /provider/{id}/oauth/authorize Authorize a provider using OAuth ProviderAuthAuthorization
POST /provider/{id}/oauth/callback Handle OAuth callback for a provider boolean

Sessions

Method Path Description Notes
GET /session List all sessions Returns Session[]
POST /session Create a new session body: { parentID?, title? }, returns Session
GET /session/status Get session status for all sessions Returns { [sessionID: string]: SessionStatus }
GET /session/:id Get session details Returns Session
DELETE /session/:id Delete a session and all its data Returns boolean
PATCH /session/:id Update session properties body: { title? }, returns Session
GET /session/:id/children Get a session's child sessions Returns Session[]
GET /session/:id/todo Get the todo list for a session Returns Todo[]
POST /session/:id/init Analyze app and create AGENTS.md body: { messageID, providerID, modelID }, returns boolean
POST /session/:id/fork Fork an existing session at a message body: { messageID? }, returns Session
POST /session/:id/abort Abort a running session Returns boolean
POST /session/:id/share Share a session Returns Session
DELETE /session/:id/share Unshare a session Returns Session
GET /session/:id/diff Get the diff for this session query: messageID?, returns FileDiff[]
POST /session/:id/summarize Summarize the session body: { providerID, modelID }, returns boolean
POST /session/:id/revert Revert a message body: { messageID, partID? }, returns boolean
POST /session/:id/unrevert Restore all reverted messages Returns boolean
POST /session/:id/permissions/:permissionID Respond to a permission request body: { response, remember? }, returns boolean

Messages

Method Path Description Notes
GET /session/:id/message List messages in a session query: limit?, returns { info: Message, parts: Part[]}[]
POST /session/:id/message Send a message and wait for response body: { messageID?, model?, agent?, noReply?, system?, tools?, parts }, returns { info: Message, parts: Part[]}
GET /session/:id/message/:messageID Get message details Returns { info: Message, parts: Part[]}
POST /session/:id/prompt_async Send a message asynchronously (no wait) body: same as /session/:id/message, returns 204 No Content
POST /session/:id/command Execute a slash command body: { messageID?, agent?, model?, command, arguments }, returns { info: Message, parts: Part[]}
POST /session/:id/shell Run a shell command body: { agent, model?, command }, returns { info: Message, parts: Part[]}

Commands

Method Path Description Response
GET /command List all commands Command[]

Files

Method Path Description Response
GET /find?pattern=<pat> Search for text in files Array of match objects with path, lines, line_number, absolute_offset, submatches
GET /find/file?query=<q> Find files and directories by name string[] (paths)
GET /find/symbol?query=<q> Find workspace symbols Symbol[]
GET /file?path=<path> List files and directories FileNode[]
GET /file/content?path=<p> Read a file FileContent
GET /file/status Get status for tracked files File[]

/find/file query parameters

  • query (required) — search string (fuzzy match)
  • type (optional) — limit results to "file" or "directory"
  • directory (optional) — override the project root for the search
  • limit (optional) — max results (1–200)
  • dirs (optional) — legacy flag ("false" returns only files)

Tools (Experimental)

Method Path Description Response
GET /experimental/tool/ids List all tool IDs ToolIDs
GET /experimental/tool?provider=<p>&model=<m> List tools with JSON schemas for a model ToolList

LSP, Formatters & MCP

Method Path Description Response
GET /lsp Get LSP server status LSPStatus[]
GET /formatter Get formatter status FormatterStatus[]
GET /mcp Get MCP server status { [name: string]: MCPStatus }
POST /mcp Add MCP server dynamically body: { name, config }, returns MCP status object

Agents

Method Path Description Response
GET /agent List all available agents Agent[]

Logging

Method Path Description Response
POST /log Write log entry. Body: { service, level, message, extra? } boolean

TUI

Method Path Description Response
POST /tui/append-prompt Append text to the prompt boolean
POST /tui/open-help Open the help dialog boolean
POST /tui/open-sessions Open the session selector boolean
POST /tui/open-themes Open the theme selector boolean
POST /tui/open-models Open the model selector boolean
POST /tui/submit-prompt Submit the current prompt boolean
POST /tui/clear-prompt Clear the prompt boolean
POST /tui/execute-command Execute a command ({ command }) boolean
POST /tui/show-toast Show toast ({ title?, message, variant }) boolean
GET /tui/control/next Wait for the next control request Control request object
POST /tui/control/response Respond to a control request ({ body }) boolean

Auth

Method Path Description Response
PUT /auth/:id Set authentication credentials. Body must match provider schema boolean

Events

Method Path Description Response
GET /event Server-sent events stream. First event is server.connected, then bus events Server-sent events stream

Docs

Method Path Description Response
GET /doc OpenAPI 3.1 specification HTML page with OpenAPI spec
Install via CLI
npx skills add https://github.com/Rocco-Gossmann/linux-dotfiles --skill opencode-docs-server
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