Manifest

Manifest

Manifest is an API-first action layer that converts any URL into a structured JSON 'action manifest' describing every button, form, and input on a page (including required fields and input types) so AI agents can reason about and interact with web pages reliably.

Manifest is ai agents software teams evaluate for ai agents. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Freemium API Enterprise 80/100
#432 in AI Agents (432 tools)
Just launched
Data reviewed Jul 27, 2026

Quick Overview

Best for: AI Agents

What it does

AI Agents software for decision-makers comparing workflow fit and alternatives.

Best fit

AI Agents

Pricing snapshot

Freemium from $0

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Manifest

Manifest visits a URL, reads its accessibility tree (like a screen reader) and cross-references the page DOM to capture details accessibility trees miss (required fields, input types, placeholders, disabled states). It translates that combined picture into a JSON action manifest describing every button, form, and input on the page in a way an AI agent can reason about and act on. The product is offered as an API with documentation, an endpoint example (POST /manifest), and pricing tiers targeted at developers building AI agents.

Manifest turns any webpage into a structured JSON map of what an AI agent can click, fill, and submit. One API call, no fragile selectors.

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Key Features

Accessibility-tree + DOM extraction

Reads the accessibility tree like a screen reader and cross-references the DOM to capture required fields, input types, placeholders, and disabled states.

Structured JSON action manifests

Outputs a clean JSON manifest listing current page state, actions (buttons, inputs, forms) with ids, labels, types, descriptions, and required flags that agents can reason about.

API endpoint

Example API usage shown as POST /manifest with a URL payload to retrieve the manifest for that page.

Cache for predictable performance & billing

Cached responses are always fast and do not count against rate limits the same way cold requests do, keeping costs predictable for common URLs.

Pricing

Free Tier Available

Free plan: $0 with 50 calls per month

Free

$0
  • 50 calls / month
  • No listed overage (denoted with dashes)

Starter

$29 / mo
  • 1,000 calls / month
  • $0.08 per extra call

Pro

$79 / mo
  • 5,000 calls / month
  • $0.05 per extra call

Enterprise

Custom
  • Custom plan and usage limits

Use Cases

Enable AI agents to interact with web pages

Provide agents a structured map of clickable and fillable elements so they can perform actions (click, fill, submit) instead of relying on screenshots or brittle selectors.

Survive UI redesigns

Replace hand-written selectors and fragile CSS paths with an accessibility- and DOM-driven manifest that is less likely to break on page redesigns.

Form filling and validation

Identify required fields and input types so agents know what inputs are mandatory before submitting forms.

Integrations

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Benefits

Allows AI agents to reason about available actions on a page rather than guessing from screenshots or raw text
More robust than hand-maintained selectors and less fragile across UI redesigns
Cached responses improve performance and make costs more predictable

Limitations

Does not provide screenshots (page emphasizes “No screenshots.”)
Is an action-description layer rather than a full browser environment (comparative table distinguishes browser access from Manifest)

Frequently Asked Questions

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Getting Started

  1. 1 Get your API key (Get your API key link shown on the site)
  2. 2 Read the docs (use the site documentation to learn request/response formats)
  3. 3 Call the API (POST /manifest with { "url": "https://example.com" } to receive a JSON action manifest)
  4. 4 Integrate the returned manifest into your agent logic to click, fill, and submit actions as needed

Support

docs

Read the docs link available on the site (site includes 'Read the docs')

contact

Contact us link available on the site (site shows 'Contact us')

social

Social channels listed (Instagram, Facebook, LinkedIn) for updates and outreach

API

Available: Yes
Documentation:

Read the docs link available on the site

Rate Limits:

Plans include per-month call quotas and per-call overage pricing; cached responses do not count against rate limits

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