Web Scraping API for AI Agents
Give your LLM tools reliable internet access. AlterLab handles JavaScript rendering, challenge resolution, and structured output — agents receive clean markdown on every request, without managing browser state or parsing raw HTML. MCP-compatible. From $0.0002/request.
Integrate AlterLab as an Agent Tool
One HTTP call. Clean markdown output. Works in any agent framework that supports function calling or tool use.
import requests
def fetch_page(url: str) -> str:
# AlterLab tool for AI agents
r = requests.post(
"https://api.alterlab.io/v1/scrape",
headers={"X-API-Key": API_KEY},
json={
"url": url,
"formats": ["markdown"],
}
)
return r.json()["data"]["markdown"]# Research agent: fetch 10 sources at once
sources = [
"https://docs.example.com/api",
"https://blog.example.com/post",
"# ... up to 50 sources"
]
results = requests.post(
"https://api.alterlab.io/v1/batch",
headers={"X-API-Key": API_KEY},
json={
"urls": sources,
"formats": ["markdown"],
}
)How Web Access Works for AI Agents with AlterLab
A reliable web retrieval layer for autonomous agents in four steps.
Agent Invokes the AlterLab Tool
The agent identifies a URL it needs to retrieve and calls the AlterLab tool with that URL. No additional parameters required — rendering mode, proxy selection, and output formatting are handled automatically based on the target page type.
AlterLab Handles Page Retrieval and Rendering
AlterLab receives the request and determines the appropriate retrieval strategy: static HTTP for simple pages (Tier 1, $0.0002), headless browser for JavaScript-rendered content (Tier 4, $0.004). Challenge pages are resolved automatically. The agent does not need to manage any of this complexity.
Clean Markdown Delivered to the Agent
AlterLab converts the retrieved page to clean markdown — headings, prose, tables, and code blocks — stripping navigation, ads, and UI chrome. The agent receives content it can read directly, with significantly lower token count than raw HTML. JSON output is also available for structured data extraction.
Agent Continues Its Reasoning Loop
The agent incorporates the retrieved content into its context and continues reasoning. No parsing, no DOM manipulation, no error recovery for blocked pages. AlterLab handles the infrastructure; the agent focuses on the task.
AI Agent Use Cases
What developers build when they give their agents reliable web access.
Research and Synthesis Agents
Agents that gather information from multiple web sources, synthesize findings, and produce structured reports — without hitting IP blocks or receiving JavaScript bundle source instead of content.
Monitoring and Alert Agents
Autonomous agents that periodically check web pages for changes — price drops, stock availability, news mentions, regulatory updates — and trigger downstream actions when conditions are met.
Competitive Intelligence Pipelines
Agents that collect competitor product pages, pricing, job listings, and announcement pages on a schedule — building a continuous intelligence feed without manual data collection.
Documentation and Knowledge Base Agents
Agents that fetch technical documentation, API references, and changelog pages to answer developer questions with current information rather than training data cutoffs.
MCP Tool Integrations
AlterLab integrates as a Model Context Protocol tool for Claude and other MCP-compatible agents. Agents request web pages through the MCP interface and receive clean markdown in the tool response.
Autonomous Data Collection Workflows
Multi-step agent workflows that combine search, retrieval, extraction, and storage — collecting structured data sets from the web without human intervention between steps.
Web Scraping for AI Agents — FAQ
Related Resources
Web Scraping Pipelines for AI Agents
Optimize web retrieval for LLM consumption — reduce token waste and extraction cost.
AI Training Data
Collect web data for fine-tuning datasets and RAG knowledge bases.
Other Use Cases
SERP tracking, market research, financial data — see all AlterLab use cases.
Pricing
From $0.0002/request. No subscriptions. Balance never expires.
Your first scrape.
Sixty seconds.
$1 free balance. No credit card. No SDK.
Just a POST request.
No credit card required · Up to 5,000 free scrapes · Balance never expires