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AstrBot HTTP API

Starting from v4.18.0, AstrBot provides API Key based HTTP APIs for programmatic access.

Quick Start

1. Create an API key in WebUI - Settings.
2. Include the API key in request headers:

Authorization: Bearer abk_xxx

Also supported:

X-API-Key: abk_xxx

3. For chat endpoints, username is required:

• POST /api/v1/chat: request body must include username
• GET /api/v1/chat/sessions: query params must include username

The local OpenAPI schema is available at http://localhost:6185/api/v1/openapi.json, and the interactive docs are available at http://localhost:6185/api/v1/docs.

Scope Permissions

When creating an API Key, you can configure scopes. Each scope controls the range of accessible endpoints:

Scope	Purpose	Accessible Endpoints
bot	Manage bot/platform configurations	GET /api/v1/bot-types, GET/POST /api/v1/bots, PATCH /api/v1/bots/enabled
provider	Manage model providers and provider sources	GET/POST /api/v1/providers, GET/PUT/DELETE /api/v1/provider-sources/by-id
persona	Manage personas and persona folders	GET/POST /api/v1/personas, GET/POST /api/v1/persona-folders
im	Send proactive IM messages and query bot/platform list	POST /api/v1/im/message, GET /api/v1/im/bots
config	Manage config profiles, system config, and shared configuration. This scope also includes bot and provider access.	GET /api/v1/configs, GET/PUT /api/v1/system-config, GET/POST /api/v1/config-profiles
chat	Access chat capabilities and query sessions	POST /api/v1/chat, GET /api/v1/chat/sessions
plugin	Manage plugins, plugin config, plugin sources, and marketplace entries	GET /api/v1/plugins, GET/PUT /api/v1/plugins/config, POST /api/v1/plugins/install/url
mcp	Manage MCP server configurations and provider sync	GET/POST /api/v1/mcp/servers, PATCH /api/v1/mcp/servers/{server_name}/enabled, POST /api/v1/mcp/providers/modelscope/sync
skill	Manage skills, skill archives, skill files, and Shipyard Neo skill workflows	GET/POST /api/v1/skills, PUT /api/v1/skills/{skill_name}/files/{file_path}, POST /api/v1/skills/neo/sync

If the API Key does not include the required scope for the target endpoint, the request will return 403 Insufficient API key scope.

config is a broad management scope. When an API key is created with config, AstrBot grants the key config, bot, and provider access together. The WebUI mirrors this dependency: selecting config selects bot and provider; deselecting bot or provider removes config.

Developer API keys currently support only the 9 scopes listed above. file, tool, skills, kb, data, and system are not valid developer API key scopes. Use the singular skill scope for /api/v1/skills/* endpoints. Related endpoints may still appear in the /api/v1 reference, but they are not available to developer API keys unless their scope is one of the supported scopes above.

Common Endpoints

Chat

Interact with AstrBot's built-in Agent. Supports plugin calls, tool calls, and other capabilities — consistent with IM-side chat.

• POST /api/v1/chat: send chat message (SSE stream, server generates UUID when session_id is omitted)
• GET /api/v1/chat/sessions: list sessions for a specific username with pagination
• GET /api/v1/configs: list available config files

Bots and Providers

• GET /api/v1/bots: list bot/platform configurations
• POST /api/v1/bots: create a bot/platform configuration
• GET /api/v1/providers: list model provider configurations
• GET /api/v1/provider-sources: list provider source configurations

Personas, Plugins, MCP, and Skills

• GET /api/v1/personas: list personas
• GET /api/v1/plugins: list plugins
• GET /api/v1/mcp/servers: list MCP servers
• GET /api/v1/skills: list skills

Proactive IM Messages

• POST /api/v1/im/message: send a proactive message via UMO
• GET /api/v1/im/bots: list bot/platform IDs

message Field Format (Important)

The message field in POST /api/v1/chat and POST /api/v1/im/message supports two formats:

1. String: plain text message
2. Array: message segments (message chain)

1. Plain Text Format

{
  "message": "Hello"
}

2. Message Segment Array Format

{
  "message": [
    { "type": "plain", "text": "Please see this file" },
    { "type": "file", "attachment_id": "9a2f8c72-e7af-4c0e-b352-111111111111" }
  ]
}

Supported type values:

type	Required Fields	Optional Fields	Description
plain	text	-	Text segment
reply	message_id	selected_text	Quote-reply a message
image	attachment_id	-	Image attachment segment
record	attachment_id	-	Audio attachment segment
file	attachment_id	-	Generic file segment
video	attachment_id	-	Video attachment segment

• The reply segment is currently only supported for /api/v1/chat, not for POST /api/v1/im/message.

Notes:

• attachment_id comes from an existing attachment record. Developer API keys cannot currently upload attachments via POST /api/v1/file.
• reply cannot be the only segment; at least one content segment (e.g. plain/image/file/...) is required.
• A request with only reply or empty content will return an error.

message Usage in Chat API

POST /api/v1/chat additionally requires username, with optional session_id (a UUID is auto-generated if omitted).

{
  "username": "alice",
  "session_id": "my_session_001",
  "message": [
    { "type": "plain", "text": "Please summarize this PDF" },
    { "type": "file", "attachment_id": "9a2f8c72-e7af-4c0e-b352-111111111111" }
  ],
  "enable_streaming": true
}

message Usage in IM Message API

POST /api/v1/im/message requires umo + message.

{
  "umo": "webchat:FriendMessage:openapi_probe",
  "message": [
    { "type": "plain", "text": "This is a proactive message" },
    { "type": "image", "attachment_id": "9a2f8c72-e7af-4c0e-b352-222222222222" }
  ]
}

Example

curl -N 'http://localhost:6185/api/v1/chat' \
  -H 'Authorization: Bearer abk_xxx' \
  -H 'Content-Type: application/json' \
  -d '{"message":"Hello","username":"alice"}'

Full API Reference

Use the interactive docs:

• https://docs.astrbot.app/scalar.html