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Workflow

Automate a Portal That Has No API

Use a browser agent where integration is impossible — without daily breakage.

2 min readupdated 2026-08-01

/ quick answer

Script the deterministic path with Playwright and use the model only where the page is unpredictable. Use a browser agent where integration is impossible — without daily breakage.

Use a browser agent where integration is impossible — without daily breakage. The problem it solves: A critical supplier, bank or government portal has no API and no export, so someone does it by hand every week. Script the deterministic path with Playwright and use the model only where the page is unpredictable. It runs in 7 steps, starting with record the human path once and write down every decision point. This workflow node is part of the Onexial knowledge graph and links to related concepts, workflows and tools below.
Problem
A critical supplier, bank or government portal has no API and no export, so someone does it by hand every week.
Solution
Script the deterministic path with Playwright and use the model only where the page is unpredictable.
Steps
  1. 01Record the human path once and write down every decision point.
  2. 02Automate the stable steps deterministically (selectors, not vision) — cheaper and faster.
  3. 03Use the model only for ambiguity: unexpected modals, changed labels, CAPTCHAs to escalate.
  4. 04Store credentials in a secret manager; never in the prompt or the repo.
  5. 05Add verification: assert the expected end state (file downloaded, record created).
  6. 06Alert on failure with a screenshot so a human can finish the run in minutes.
  7. 07Re-run weekly on a schedule and track the success rate.
Tools Used
Prompts Used
Related Dictionary
/ frequently asked

What does the Automate a Portal That Has No API workflow do?

Script the deterministic path with Playwright and use the model only where the page is unpredictable.

What problem does Automate a Portal That Has No API solve?

A critical supplier, bank or government portal has no API and no export, so someone does it by hand every week.

How many steps does Automate a Portal That Has No API take?

7 steps. It starts with record the human path once and write down every decision point. and ends with re-run weekly on a schedule and track the success rate..

Which tools does Automate a Portal That Has No API need?

It uses browser-automation-stack — each linked below with its own node.

/ topics#automation#browser#ops
↳ connected nodes
Dictionary↳ linked
Browser Agent
A browser agent drives a real web browser — navigating, clicking, typing and reading pages — to complete tasks on sites that have no API.
Dictionary↳ linked
Computer-Use Agent
An AI agent that controls a desktop or browser via screenshots and clicks.
Tool Stack↳ linked
Browser Automation Stack
Run browser agents on a schedule with credentials, retries and screenshots.
Prompt↳ linked
Browser Automation Task Spec Prompt
Converts a manual click-path into a reliable automation spec.
Comparison↳ linked
Browser Agent vs API Automation
APIs win whenever they exist; browser agents exist for the systems that never gave you one.
Use Case↳ linked
Finance Team Automates 14 Supplier Portals with Browser Agents
Weekly invoice retrieval from portals with no API or export.