An HTTP-triggered function has 230 seconds to respond no matter what functionTimeout says, and the reCAPTCHA polling timeout defaults to 300. Here is where the solve belongs instead, and which connection mode a function app in Azure actually needs.

ALTCHA is a hashing problem, not a picture, so Python can solve it without a browser and in milliseconds. Here is the call, the two ways to supply a challenge, and how to run a batch without every challenge going stale.

ALTCHA is proof of work, so there is nothing to recognise and a solve is deterministic. Here is the C# call, the two ways to supply the challenge, and why the token has to be posted back byte for byte.

BullMQ runs one job at a time by default, and a worker that blocks the event loop gets its job handed to someone else and solved again. Here are the settings that decide both, and where the solver has to be listening.

Nightwatch enqueues browser commands instead of running them where you wrote them, so a solving call fires before the page has even loaded. Here is where the solve belongs, and the one timeout you have to raise.

Trigger.dev builds your task into a Docker image and runs it on its own infrastructure, so 127.0.0.1 inside a task is never your desk. Here is the connection mode that works, and the timeout that quietly kills a slow solve.

Retool’s code executor blocks private addresses by default, so the code block cannot reach a solver on your LAN and the REST resource block can. Here is the whole flow, with the block timeouts that decide whether a slow solve survives.

On Selenium Grid the browser is on one machine and your test code is on another, which changes exactly one thing about solving a CAPTCHA: where the solver has to be reachable from. Here is the RemoteWebDriver setup, the token injection, and the node session timeout that quietly kills a slow solve.

Inngest re-runs your function from the top at every step boundary and replays completed steps from stored state. So a solve outside a step repeats, and a token returned from one is dead by the time it is used. Here is the shape that works.

Locust reports everything sent through self.client, so a solve there lands in your percentiles. Here is where the call belongs, why test_start runs once per node rather than once per run, and when one token per user beats one token per test.