Get log lines for a specific task run attempt

APIs & SDKs

GET

https://api.vercel.com/v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/job-definitions/{jobDefinitionId}/runs/{runAttempt}/task-definitions/{taskDefinitionId}/runs/{taskRunAttempt}/logs

Get Task Run Logs With follow=1 the response is a newline-delimited JSON stream of log lines that ends once the task run has finished and its logs are flushed, or when the stream reaches its maximum duration.

https://api.vercel.com/v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/job-definitions/{jobDefinitionId}/runs/{runAttempt}/task-definitions/{taskDefinitionId}/runs/{taskRunAttempt}/logs

const response = await fetch('https://api.vercel.com/v1/vercel-ci/invocations/invocationId/attempts/attempt/job-definitions/jobDefinitionId/runs/runAttempt/task-definitions/taskDefinitionId/runs/taskRunAttempt/logs?follow=123&since=123&level=[]&teamId=string&slug=string', {
  method: 'GET',
  headers: {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json',
  },
});

const data = await response.json();
console.log(data);

Response

{
  "lines": [
    {
      "level": "string",
      "timestamp": "123",
      "message": "string"
    }
  ]
}

Errors

{
  "error": {
    "code": "string",
    "message": "string"
  }
}

Authentication

AuthorizationbearerToken

Default authentication mechanism

Path parameters

invocationIdstringRequired

attemptstringRequired

jobDefinitionIdstringRequired

runAttemptstringRequired

taskDefinitionIdstringRequired

taskRunAttemptstringRequired

Query parameters

follownumberOptional

When 1, stream log lines as newline-delimited JSON until the task run finishes.

sincenumberOptional

levelarrayOptional

Only return log lines with one of these levels.

teamIdstringOptional

The Team identifier to perform the request on behalf of.

slugstringOptional

The Team slug to perform the request on behalf of.

Response

200Successfully fetched task run log lines.

linesarrayRequired

Errors

400One of the provided values in the request query is invalid.

401The request is not authorized.

errorobjectRequired

403You do not have permission to access this resource.

errorobjectRequired

404Error

410Error

429Error

errorobjectRequired

500Error

errorobjectRequired

Cross-link map: Get log lines for a specific task run attempt (/docs/rest-api/vercel-ci/get-log-lines-for-a-specific-task-run-attempt)

From the Vercel docs graph (built 2026-10-06T09:42:32.185Z), spanning vercel.com docs + KB, nextjs.org, ai-sdk.dev, and other Vercel documentation sites. Full graph as JSON: https://vercel.com/docs/graph.json

Semantically closest pages

Get log lines for a specific job run attempt — GET /v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/job-definitions/{jobDefinitionId}/runs/{runAttempt}/logs
Get log lines for the tasks of an invocation attempt — GET /v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/task-logs — Returns log lines for the tasks of an invoca
Get log lines for an invocation attempt — GET /v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/logs — Get Invocation Logs
Search the task logs of several invocation attempts — GET /v1/vercel-ci/log-search — Searches the task logs of up to 50 invocation attempts at once, for example the most rece
List task runs for a job run — GET /v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/job-definitions/{jobDefinitionId}/runs/{runAttempt}/task

This page links to (1)

Vercel REST API Reference — Interact programmatically with your Vercel account using the SDK or direct HTTP requests.

Pages that link here (1)

By site: vercel-docs (1)

Vercel REST API Reference — Interact programmatically with your Vercel account using the SDK or direct HTTP requests.

https://api.vercel.com/v1/vercel-ci/invocations/{invocationId}/attempts/{attempt}/job-definitions/{jobDefinitionId}/runs/{runAttempt}/task-definitions/{taskDefinitionId}/runs/{taskRunAttempt}/logs

const response = await fetch('https://api.vercel.com/v1/vercel-ci/invocations/invocationId/attempts/attempt/job-definitions/jobDefinitionId/runs/runAttempt/task-definitions/taskDefinitionId/runs/taskRunAttempt/logs?follow=123&since=123&level=[]&teamId=string&slug=string', {
  method: 'GET',
  headers: {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json',
  },
});

const data = await response.json();
console.log(data);

Response

{
  "lines": [
    {
      "level": "string",
      "timestamp": "123",
      "message": "string"
    }
  ]
}

Errors

{
  "error": {
    "code": "string",
    "message": "string"
  }
}

OpenAPI Specification