Manifest

Product Introduction

1. Definition: Manifest is a specialized API and developer tool that functions as an AI agent action layer or structured web interaction API. It technically operates as a headless browser interpreter that converts the Document Object Model (DOM) and accessibility tree of any webpage into a consumable JSON schema of actionable elements.
2. Core Value Proposition: Manifest exists to solve the agentic automation gap by providing AI agents with a structured action manifest, eliminating the need for fragile CSS selectors and enabling reliable, context-aware web interaction without manual maintenance. Its primary value is turning visual or textual page understanding into executable action plans.

Main Features

1. Structured JSON Action Manifest: The core output is a detailed JSON object that enumerates every interactive element (buttons, inputs, forms) on a page. Each action includes a unique id, label, type, description, and a critical required boolean flag. This structured data is directly consumable by AI reasoning frameworks and orchestration tools.
2. Contextual Dependency Encoding (requires field): Beyond simple element listing, Manifest analyzes and encodes action dependencies within the requires field. This tells an agent, for example, that a "Checkout" button is only clickable after a "Shipping Method" has been selected, providing crucial operational context that raw HTML or screenshots lack.
3. Resolved CSS & Role Locators: For each actionable item, Manifest provides resolved CSS selectors and ARIA role attributes that are guaranteed to be valid at the time of snapshot. This combines the robustness of semantic accessibility trees with the precision of DOM inspection, delivering reliable, ready-to-use locators for automation scripts.
4. Zero-Configuration URL Processing: The system requires only a target URL via a single POST /manifest API call. It handles headless browsing, accessibility tree parsing, DOM analysis, and schema generation internally, requiring no developer-provided selectors, configuration, or prior knowledge of the page structure.

Problems Solved

1. Pain Point: The brittleness of traditional web automation. Manual or heuristic-based selectors (XPath, CSS) break with minor UI updates, causing high-maintenance overhead and unreliable agents. Manifest provides a selector-free automation layer that dynamically interprets the live page state.
2. Target Audience: AI Agent Developers building RAG pipelines with web action capabilities; Automation Engineers seeking robust, low-maintenance web interaction solutions; QA Automation Teams needing dynamic test script generation; Product Managers overseeing complex web scraping or data entry automation projects.
3. Use Cases: Autonomous customer support agents that can navigate help centers and submit forms; E-commerce price monitoring bots that can interact with filters and pagination; Self-service data entry agents for lead generation or application filling; Dynamic QA testing where test scripts are generated on-the-fly from the current UI.

Unique Advantages

1. Differentiation: Unlike generic browser automation tools (e.g., Puppeteer, Playwright) that only provide a driver, or web scraping APIs that only extract content, Manifest specifically outputs a declarative action schema. It sits between these layers, telling the what and when of interaction, not just the how.
2. Key Innovation: The synthesis of the W3C Accessibility Tree with direct DOM analysis to infer dependency graphs (requires). This approach mimics human+assistive technology understanding of a page's functional state, which is more robust and context-rich than computer vision (screenshots) or static HTML parsing alone.

Frequently Asked Questions (FAQ)

1. How does Manifest differ from using a headless browser like Puppeteer? While Puppeteer provides programmatic browser control, it requires developers to write and maintain explicit, brittle selectors for every action. Manifest acts as an abstraction layer above Puppeteer, automatically generating a stable, semantic map of available actions and their dependencies from the live page, eliminating selector maintenance.
2. Can Manifest handle dynamic, JavaScript-heavy Single Page Applications (SPAs)? Yes. Manifest executes JavaScript and waits for page stability, similar to a modern headless browser, before generating its action manifest. It interprets the fully rendered DOM and accessibility tree, making it compatible with SPAs built with React, Vue.js, or Angular.
3. Is Manifest a scraping tool or an automation tool? Manifest is primarily an automation enabler. It does not extract bulk content or data (like a scraper); instead, it provides the structured "map" an AI agent needs to navigate and interact with a site to perform tasks, which may include scraping as one action among many.
4. How does the requires field improve AI agent performance? The requires field explicitly encodes preconditions for actions, preventing agents from attempting invalid sequences (e.g., submitting a form before filling required fields). This reduces hallucinated actions, cuts down on error loops, and provides the agent with crucial, logical context about page state transitions.
5. What is the pricing model for the Manifest API? Manifest uses a tiered subscription model based on API calls per month, with a free tier offering 50 calls. Higher tiers (Starter, Pro) offer larger call volumes and lower overage rates. Importantly, cached responses are served quickly and do not count against rate limits, optimizing cost for repetitive agent tasks.