Console

Capture the JavaScript console output a page produces as it loads — errors, warnings and uncaught exceptions. Useful for monitoring third-party scripts, catching regressions and health-checking your own pages.

This is a web operation — no AI, metered against your web allowance.

POST/console

Capture console messages

Body parameters

Name
url
Type
string
Required
Required
Description
The absolute URL of the page to process. Rendered with headless Chrome, so JavaScript runs and redirects are followed.
Name
report_to
Type
string
Description
Webhook URL — an http or https address URLpipe POSTs the result to when it's ready. Required for async requests (the default); omit it only when you send sync=true. A missing or invalid value returns 422.
Name
sync
Type
boolean
Description
Process the request synchronously, returning the result inline in the response. Defaults to false (async: return a token now, deliver the result to report_to via webhook). See Async & sync modes for the full contract.
Name
max_age
Type
string | integer
Description
How fresh a cached result must be to be accepted. Either an integer number of seconds (3600) or a duration string of the form "<number> <unit>" — units s/min/h/d/w (e.g. "2 hours", "3 days", "30m"). Defaults to 7 days, clamped to a max of 30 days; 0 always bypasses the cache. See Caching for all accepted units.

Response

Content type application/json — an array of message objects. An empty array [] means the page produced no errors or warnings.

Message fields

Name
type
Type
string
Description
One of error, warning or exception.
Name
text
Type
string
Description
The message text.

POST/console

curl -X POST https://urlpipe.dev/console \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com"}'

const res = await fetch("https://urlpipe.dev/console", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ url: "https://example.com" }),
})

Response

[
  {
    "type": "error",
    "text": "Failed to load resource: the server responded with a status of 404 ()"
  },
  {
    "type": "warning",
    "text": "A cookie was set with `SameSite=None` but without `Secure`"
  },
  {
    "type": "exception",
    "text": "ReferenceError: bar is not defined"
  }
]

Message types

Name
error
Description
From console.error() calls and failed resource loads.
Name
warning
Description
From console.warn() calls and browser deprecation warnings.
Name
exception
Description
Uncaught JavaScript exceptions caught via window.onerror.

How it works

URLpipe loads the page in a headless browser, listens for console errors, warnings and uncaught exceptions, then waits briefly after the page's network activity settles so asynchronous scripts have time to run and report. All captured messages are returned together.

Responses

Status

When

Body

200 OK

The request succeeded.

Sync: the result, in this endpoint's format (see Response above). Async: a job token — { "token": "…", "status": "accepted" }.

422 Unprocessable Entity

The analysis failed, or a parameter was invalid (a bad max_age, or a missing/invalid report_to in async mode).

{ "error": "<message>" }

429 Too Many Requests

You've hit your monthly quota for this operation's category (checked only on a cache miss).

{ "error": "quota_exceeded", "category", "limit", "used", "resets_at" }

504 Gateway Timeout

Sync only: the analysis didn't finish within 60s. It keeps running — fetch it via GET /result/:token.

{ "error": "processing_timeout", "token": "…" }

401 Unauthorized

Missing or invalid API key.

—

Try it live — no API key needed

Run this endpoint against any URL right in your browser.

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