Browserless REST API

Name: Browserless REST API
Brand: Browserless REST API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentDeveloper ToolsTesting QaapiKey7 EndpointsREST

For Agents

Render any URL to HTML, screenshot, or PDF, scrape structured data, run performance audits, and unblock bot-protected pages - all over a managed Chrome fleet. Useful for content extraction, document generation, and web-research agents.

Install Jentic One Beta

Connect the Browserless REST API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Browserless REST API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with Browserless REST API.

Render a URL to fully resolved HTML after JavaScript execution via /content

Extract structured data using a CSS selector schema in a single /scrape call

Generate full-page or viewport screenshots in PNG or JPEG via /screenshot

GET STARTED

Start building with Browserless REST API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use Browserless REST API for, with concrete tasks.

★ On-Demand HTML to PDF Conversion

Document platforms convert web pages to PDF for invoicing, contracts, and report archives by sending the source URL to /pdf with paper size and header configuration. Browserless renders the page in a real Chromium instance so JavaScript-driven layouts come out correctly, and the response is the binary PDF. Typical conversion times are under 3 seconds for simple pages.

POST /pdf with the invoice URL and paper format A4 to receive the PDF binary in the response body

Structured Web Scraping

Data teams use /scrape with a JSON schema describing CSS selectors and fields they want extracted. Browserless renders the page, applies the selectors, and returns structured JSON ready to ingest into a warehouse. This replaces in-house Puppeteer code and DOM parsing for the long tail of one-off scrape jobs that don't justify a dedicated robot.

POST /scrape with the target URL and an elements schema specifying selectors for product name, price, and availability

Page Performance Auditing in CI

Front-end teams run /performance on every preview deploy to catch regressions in Largest Contentful Paint, Cumulative Layout Shift, and Total Blocking Time. The endpoint returns the full Lighthouse JSON which the CI job parses and compares against a baseline. This is a managed alternative to running Lighthouse CI containers in your own pipeline.

POST /performance with the preview deploy URL and parse the returned categories.performance.score field, failing the build if it drops below 0.85

AI Web-Research Agent Through Jentic

An AI research agent uses Jentic to fetch and parse pages without holding the Browserless token. It searches for 'render a webpage and extract structured data', loads the /scrape schema, and executes the call. Combined with /search and /unblock, the agent can run a full grounded research loop - search, fetch, parse - entirely through Browserless's managed browsers.

Use Jentic to search 'render a webpage and extract structured data', load the browserless.io /scrape operation, and execute it for the research target URL

Key Endpoints

7 endpoints — jentic publishes the only available openapi specification for browserless rest api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/content

Render a URL to resolved HTML

POST

/scrape

Extract structured data using a selector schema

POST

/screenshot

Capture a screenshot of a URL

POST

/pdf

Render a URL to PDF

POST

/search

Run a grounded web search

POST

/unblock

Bypass bot-detection layers on a target URL

POST

/performance

Run a Lighthouse-style performance audit

POST

/content

Render a URL to resolved HTML

POST

/scrape

Extract structured data using a selector schema

POST

/screenshot

Capture a screenshot of a URL

POST

/pdf

Render a URL to PDF

POST

/search

Run a grounded web search

POST

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Your Browserless token is stored once, encrypted, by your own Jentic One instance and injected as the token query parameter at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'render a webpage to PDF' or 'extract structured data from a webpage', and Jentic returns the matching Browserless operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Time to first call

FAQs

Specific to using Browserless REST API through Jentic.

Why is there no official OpenAPI spec for Browserless REST API?

Browserless does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call Browserless REST API via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.

What authentication does the Browserless REST API use?

Browserless uses a token passed as a query parameter (`tokenAuth`); the same token works against /content, /scrape, /screenshot, /pdf, /search, /unblock, and /performance. Through Jentic, the token is stored encrypted in your Jentic One instance and the agent receives a scoped execution token instead of the raw value.

Can I generate a PDF of any web page with Browserless?

Yes. POST /pdf accepts a URL plus PDF options like format, margin, landscape, and printBackground, and returns the binary PDF in the response body. You can also pass HTML directly when you don't have a hosted page to point at.

How do I scrape structured data through Jentic?

Search Jentic for 'extract structured data from a webpage', load the browserless.io /scrape schema, and pass the URL plus an elements array describing the CSS selectors and fields you want. The response is structured JSON ready to ingest.

What are the rate limits for Browserless?

The OpenAPI spec does not declare explicit rate limits. Browserless instead limits concurrent sessions per plan; check your plan's concurrency cap before launching large parallel jobs and use /performance for one-off audits rather than tight loops.

Does /unblock guarantee bypassing every bot challenge?

No. /unblock handles common bot-detection layers and challenges, but determined anti-bot vendors evolve continuously. For known-difficult targets, expect to iterate or fall back to a paid scraping API with proxy rotation.

Can I limit what my agent is allowed to do with the Browserless REST API?

Yes. Because Jentic One is self-hosted, your own rules decide which Browserless operations the agent may call and which credentials it may use. Since Browserless takes the target URL in the request body rather than as a path resource, scoping is operations-only: you allow just the endpoints the agent needs, such as /scrape and /screenshot, and leave out /pdf, /search, /unblock, or /performance if it has no reason to use them. Your stored Browserless token is injected only for the operations you permit, so the agent can never call an endpoint you did not grant.

Browserless REST API

Connect the Browserless REST API to your agent

Capabilities

Start building with Browserless REST API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs