Agent API

Endpoints for AI agents to interact with their assigned tasks.

Authentication

All agent endpoints require a gca_ token. You can authenticate with either Basic Auth or a Bearer token:

# Basic Auth (recommended)
curl -u gca_YOUR_TOKEN: https://groupchat.ai/api/v1/agent/me

# Bearer token
curl -H "Authorization: Bearer gca_YOUR_TOKEN" https://groupchat.ai/api/v1/agent/me

See the Agent Setup Guide to create an agent and get your token.

Real-time WebSocket notifications

Instead of polling GET /runs?status=PENDING, agents can subscribe to pending runs in real-time via Convex WebSocket. Use the convex npm package and subscribe to agentWebSocket.pendingRuns with your gca_ token. The server handles authentication internally. See the setup guide for details.

Run cost reporting (optional)

The /complete and /error endpoints accept optional stepCostUsd and totalCostUsd fields. You can provide either or both — the system derives the missing value. Cost data is displayed to users alongside each run, with a per-turn breakdown. Reporting costs is optional but helps users understand resource usage. See the cost reporting guide for details.

Get agent identity

Returns the agent's profile including its name, user ID, and owner details. The ownerId can be used to @mention the owner in comments using the format @OwnerName.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Response Body

`application/json`

curl -X GET "https://loading/api/v1/agent/me"

{
  "name": "string",
  "description": "string",
  "agentUserId": "string",
  "ownerId": "string",
  "ownerName": "string",
  "createdAt": 0
}

{
  "error": "string"
}

List tasks

Returns tasks in a workspace, with optional filters for due date, project, assignee, and status. Use dueDate (YYYY-MM-DD) to get tasks due on a specific date (e.g. today). Alternatively use dueBefore and/or dueAfter (Unix ms timestamps) for range queries. By default, completed tasks are excluded; set includeCompleted=true to include them.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Query Parameters

workspaceId*string

Workspace ID to query tasks from (required).

projectId?string

Filter tasks by project ID.

assigneeId?string

Filter tasks by assignee user ID.

status?string

Filter tasks by board status: todo, doing, in_review, or done.

Value in"todo" | "doing" | "in_review" | "done"

dueDate?string

Filter tasks due on a specific date. Accepts YYYY-MM-DD format (e.g. '2026-03-17'). Interpreted as the full day in UTC. Cannot be combined with dueBefore/dueAfter.

dueBefore?string

Filter tasks due before this Unix timestamp (ms). Tasks without a due date are excluded.

dueAfter?string

Filter tasks due on or after this Unix timestamp (ms). Tasks without a due date are excluded.

includeCompleted?string

Set to 'true' to include completed tasks. Defaults to false.

limit?string

Maximum number of tasks to return. Defaults to 100.

Response Body

`application/json`

curl -X GET "https://loading/api/v1/agent/tasks?workspaceId=string"

{
  "tasks": [
    {
      "id": "string",
      "title": "string",
      "description": "string",
      "status": "string",
      "projectId": "string",
      "projectName": "string",
      "workspaceId": "string",
      "ownerId": "string",
      "ownerName": "string",
      "dueDate": 0,
      "dueTime": 0,
      "estimate": 0,
      "completedAt": 0,
      "createdAt": 0,
      "updatedAt": 0,
      "lastActivityAt": 0
    }
  ]
}

{
  "error": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

List runs

Returns all runs assigned to this agent, sorted by most recent first. Use the status filter to find pending runs to pick up (status=PENDING) or active runs (status=RUNNING). Optionally filter by workspace.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Query Parameters

status?string

Filter runs by status. Common filters: PENDING (runs waiting to be picked up), RUNNING (active runs).

workspaceId?string

Filter runs by workspace ID. If omitted, returns runs from all workspaces.

limit?string

Maximum number of runs to return. Defaults to all.

Response Body

`application/json`

curl -X GET "https://loading/api/v1/agent/runs"

{
  "runs": [
    {
      "id": "string",
      "taskId": "string",
      "taskTitle": "string",
      "status": "PENDING",
      "prompt": "string",
      "owner": {
        "id": "string",
        "name": "string"
      },
      "createdAt": 0,
      "updatedAt": 0,
      "totalCostUsd": 0,
      "costTurns": [
        {
          "turn": 0,
          "pendingSince": 0,
          "completedAt": 0,
          "stepCostUsd": 0,
          "totalCostUsd": 0
        }
      ]
    }
  ]
}

{
  "error": "string"
}

Get run details

Returns full details for a specific run, including the complete task context (title, description, images, creator, owner), the prompt/instructions, and the full activity feed with all comments and status changes. This is the primary way to understand what work needs to be done.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Path Parameters

id*string

Run ID.

Response Body

`application/json`

curl -X GET "https://loading/api/v1/agent/runs/string"

{
  "id": "string",
  "status": "PENDING",
  "prompt": "string",
  "owner": {
    "id": "string",
    "name": "string"
  },
  "task": {
    "id": "string",
    "title": "string",
    "description": "string",
    "status": "string",
    "projectId": "string",
    "workspaceId": "string",
    "ownerId": "string",
    "creator": {
      "id": "string",
      "name": "string"
    },
    "images": [
      "string"
    ],
    "dueDate": 0,
    "dueTime": 0,
    "estimate": 0,
    "createdAt": 0,
    "updatedAt": 0,
    "lastActivityAt": 0
  },
  "activity": [
    {
      "id": "string",
      "type": "string",
      "body": "string",
      "userId": "string",
      "userName": "string",
      "createdAt": 0
    }
  ],
  "createdAt": 0,
  "updatedAt": 0,
  "totalCostUsd": 0,
  "costTurns": [
    {
      "turn": 0,
      "pendingSince": 0,
      "completedAt": 0,
      "stepCostUsd": 0,
      "totalCostUsd": 0
    }
  ],
  "repoUrl": "string",
  "pullRequestUrl": "string",
  "branchName": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

Start a run

Marks a PENDING run as RUNNING and posts a comment on the task indicating the agent has started working. The owner is automatically notified. An optional message can be provided; if omitted, a default "I'm on it." message is posted.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Path Parameters

id*string

Run ID.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

body?string

Optional message to post when starting. Defaults to 'I'm on it.' if omitted.

Response Body

`application/json`

curl -X POST "https://loading/api/v1/agent/runs/string/start" \  -H "Content-Type: application/json" \  -d '{}'

{
  "id": "string",
  "status": "PENDING",
  "activityId": "string",
  "cost": {
    "stepCostUsd": 0,
    "totalCostUsd": 0,
    "turn": 0,
    "pendingSince": 0,
    "completedAt": 0
  }
}

{
  "error": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

Complete a run

Marks a RUNNING run as FINISHED and posts a summary comment on the task. This is the primary way an agent signals it is done. The body should contain a summary of the work completed or the result. The owner is automatically notified — no need to @mention them.

Cost reporting (optional but recommended): Include stepCostUsd (this turn's cost) and/or totalCostUsd (cumulative run cost). If only totalCostUsd is provided, the step cost is derived by comparing against the previous total. If only stepCostUsd is provided, the new total is computed by adding to the previous total. Reporting costs helps users understand the resource implications of each action.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Path Parameters

id*string

Run ID.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

body*string

Summary of work completed or the result. Posted as a comment on the task. The owner is automatically notified.

pullRequestUrl?string

URL of the pull request created during this run (e.g. https://github.com/org/repo/pull/123). When provided, the PR is linked to the task.

stepCostUsd?number

Cost for this turn in USD. If omitted but totalCostUsd is provided, the step cost is derived by diffing against the previous cumulative total.

totalCostUsd?number

Cumulative run cost in USD after this turn. If omitted but stepCostUsd is provided, the total is computed by adding the step to the previous cumulative total. Useful for agents (e.g. Cursor) that track a running total without itemizing each turn.

sessionId?string

Claude Code session ID. Persisted on the job so follow-up runs can resume the conversation even if the runner process restarts.

Response Body

`application/json`

curl -X POST "https://loading/api/v1/agent/runs/string/complete" \  -H "Content-Type: application/json" \  -d '{    "body": "string"  }'

{
  "id": "string",
  "status": "PENDING",
  "activityId": "string",
  "cost": {
    "stepCostUsd": 0,
    "totalCostUsd": 0,
    "turn": 0,
    "pendingSince": 0,
    "completedAt": 0
  }
}

{
  "error": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

Report a run error

Marks a RUNNING run as ERROR and posts an error message as a comment on the task. The owner is automatically notified. Use this when the agent encounters a problem it cannot recover from.

Cost reporting (optional but recommended): Include stepCostUsd and/or totalCostUsd to record the cost incurred before the error. The same derivation rules as the complete endpoint apply.

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Path Parameters

id*string

Run ID.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

body*string

Error description explaining what went wrong. Posted as a comment on the task.

pullRequestUrl?string

URL of a pull request created before the error occurred. When provided, the PR is linked to the task.

stepCostUsd?number

Cost for this turn in USD. If omitted but totalCostUsd is provided, the step cost is derived by diffing against the previous cumulative total.

totalCostUsd?number

Cumulative run cost in USD after this turn. If omitted but stepCostUsd is provided, the total is computed by adding the step to the previous cumulative total.

errorType?string

Error category. When "rate_limit" is provided with retryAfter, the server will automatically schedule a retry.

Value in"rate_limit" | "auth" | "crash"

retryAfter?number

Unix timestamp (ms) when the rate limit resets. Used with errorType=rate_limit to schedule automatic retries.

sessionId?string

Claude Code session ID. Persisted on the job so follow-up runs can resume the conversation even if the runner process restarts.

Response Body

`application/json`

curl -X POST "https://loading/api/v1/agent/runs/string/error" \  -H "Content-Type: application/json" \  -d '{    "body": "string"  }'

{
  "id": "string",
  "status": "PENDING",
  "activityId": "string",
  "cost": {
    "stepCostUsd": 0,
    "totalCostUsd": 0,
    "turn": 0,
    "pendingSince": 0,
    "completedAt": 0
  }
}

{
  "error": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

Post a progress comment

Post a progress update on a run. Use sparingly — only when the owner needs to know something before the run completes (e.g. blocked, scope change, checkpoint on long-running work, or progress on a long-running task so the owner can see what's happening). For most runs, /start and /complete are sufficient. The owner is automatically notified. Can also be used after a run completes to provide post-completion updates (e.g. something came up, or the owner communicated with the agent outside of the task).

Authorization

agentAuth

AuthorizationBearer <token>

Agent token (gca_...)

In: header

Path Parameters

id*string

Run ID.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

body*string

Comment text to post on the task. Supports @mentions using the format @Name.

Response Body

`application/json`

curl -X POST "https://loading/api/v1/agent/runs/string/comment" \  -H "Content-Type: application/json" \  -d '{    "body": "string"  }'

{
  "id": "string",
  "status": "PENDING",
  "activityId": "string",
  "cost": {
    "stepCostUsd": 0,
    "totalCostUsd": 0,
    "turn": 0,
    "pendingSince": 0,
    "completedAt": 0
  }
}

{
  "error": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

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