What AlterLab does

AlterLab (legally RapierCraft Inc., Delaware) is a private web scraping API platform targeting developers, AI engineers, and enterprise data teams. Its core product is a unified REST API that converts any URL into clean, structured data (markdown, JSON, HTML, or plain text) using a five-tier auto-escalation system, ranging from Light ($0.0002 per request for static HTML) through Standard, Protected, and Dynamic tiers up to Fortress ($0.02 per request for CAPTCHA resolution). Smart Router automatically selects the cheapest viable tier per URL, yielding an effective blended cost of approximately $0.001 per request. The embedded AlterLab Cortex engine uses machine learning to detect scraping failures, diagnose root causes, and autonomously deploy optimized playbooks; it also powers LLM-ready output (up to 70% fewer tokens than raw HTML), adaptive browser fingerprinting, and cross-domain knowledge transfer across the 195-country proxy network.

AlterLab generates revenue through a usage-based pay-per-request model with no monthly subscription; credit balances never expire, and a 5,000-request free tier drives self-serve onboarding. An enterprise motion offers dedicated infrastructure, custom SLAs, and volume discounts. Distribution occurs through Python and Node.js SDKs, a Model Context Protocol (MCP) server compatible with Claude Code, Cursor, Windsurf, Codex, and Gemini CLI, plus first-party integrations with LangChain, LlamaIndex, n8n, and Supabase. Marketing relies on developer content (280+ blog articles), an interactive API playground, and comparison pages against 13 named competitors (ScraperAPI, Firecrawl, ScrapingBee, Bright Data, Apify, Zyte, ZenRows, Crawlbase, Oxylabs, Smartproxy, Scrapfly, Crawl4AI, Diffbot).

The company is bootstrapped, with no disclosed funding rounds and headcount of 1-10, and reports 700+ developers signed up and 99.9% uptime SLA. It operates a complementary Affiliate Partner Program plus user-to-user credit sharing introduced in June 2026, alongside an unusually concentrated wave of 40+ feature releases in the same month covering AI agent optimization, batch scraping universalization, BYOS authenticated scraping, Firefox engine support, and dynamic extraction routing. Operating geographies are global with no disclosed restrictions.

Name

AlterLab

Legal name

RapierCraft Inc.

Website

https://alterlab.io

Company type

Private

Founded year

2026

Operating status

Operating

Headcount range

1–10 employees

Short description

AlterLab (RapierCraft Inc.) is a usage-based web scraping API platform that serves developers and AI engineers with a five-tier auto-escalation engine, an embedded Cortex AI for autonomous failure recovery, and native SDK and MCP server integrations for the AI agent ecosystem.

Ownership category

akta.pro rank

Product category

Web Scraping API Platform

NAICS

Custom Computer Programming Services (541511), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computer Systems Design and Related Services (5415)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371), Services-Prepackaged Software (7372)

akta.pro primary industry

Data Integration, ETL/ELT & Reverse ETL (BPAMAOAI)

Keywords

• Web scraping API
• Data extraction platform
• Anti-bot bypass
• LLM-ready data
• Headless browser rendering

Headquarters

HQ city

Middletown

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Infrastructure, Technology or R&D, Personnel, Marketing or Sales, Operations

Revenue model

1. API Request Processing: Pay-per-request model where customers are charged per successful scrape based on complexity tier. Tiers range from $0.0002 (Light) to $0.02 (Fortress) per request. Failed requests are never charged. No monthly subscription required; balance never expires.
2. Search & Map APIs: Additional API endpoints for SERP data and site URL discovery at $0.001 per call. Extraction schema add-on for LLM-powered JSON extraction costs $0.001 per page.
3. Enterprise Services: Enterprise plans offer custom concurrency limits, dedicated infrastructure, priority support, custom SLAs, and volume discounts at transparent pricing.

Pricing tiers

Go-to-market motion2 records

Distribution channels7 records

Marketing channels6 records

Core offering

AlterLab operates a unified web scraping REST API platform that converts any URL into clean, LLM-ready data (markdown, structured JSON, HTML, or plain text) via a single HTTP request. The API uses a 5-tier auto-escalation system from static HTML ($0.0002/request) through challenge resolution ($0.02/request), with the AlterLab Cortex AI engine and Smart Router automatically selecting the cheapest viable tier and handling anti-bot bypass, JavaScript rendering, and CAPTCHA resolution. Distribution occurs through official Python and Node.js SDKs, an MCP server for AI agents, and an n8n node.

Product overview

AlterLab is a unified web scraping API platform that provides multiple interconnected products and modules. The core is the AlterLab Web Scraping API with built-in AlterLab Cortex autonomous AI system and Smart Router for intelligent tier selection. The platform offers distinct API endpoints: Scrape API for single URLs, Crawl API for multi-page site crawling, Search API for SERP data with optional scraping, Map API for full site URL discovery, Extract API for AI-powered structured JSON extraction, and Sessions API for authenticated scraping. SDK offerings include Python SDK, Node.js SDK, MCP Server for AI agents (Claude, Cursor, Windsurf, Codex, Gemini CLI), and n8n Node for workflow automation. The platform uses a 5-tier pricing system (Light through Fortress) with automatic tier escalation managed by Smart Router. Balance never expires and no monthly subscription required.

Differentiator

Problem solved

Functional benefit

Products and services

• AlterLab Web Scraping API The main REST API that converts any URL into clean data (markdown, structured JSON, HTML, or plain text) with automatic JavaScript rendering, anti-bot bypass, and challenge resolution, using a 5-tier auto-escalation system ($0.0002 to $0.02 per request) targeting developers building data pipelines and AI applications.
• Scrape API Primary API endpoint for scraping individual URLs, returning clean HTML, markdown, JSON, or plain text with configurable options for JavaScript rendering, anti-bot handling, geo-targeting, screenshots, and PDF export.
• Crawl API Multi-page crawling endpoint for discovering and scraping multiple URLs across a website with configurable depth, respect for robots.txt, and webhook delivery of results.
• Search API SERP data and scraping in one call, returning up to 10 organic results at $0.001 per search with optional scrape_results add-on for full page scraping at actual tier cost.
• Map API Site URL discovery endpoint that returns all discovered URLs via sitemap discovery plus recursive BFS crawl at a flat $0.001 per call rate.
• Extract API AI-powered structured extraction endpoint that populates JSON data from web pages using defined schemas, with dynamic model routing and failover support for uninterrupted extraction.
• Sessions API Session management API for authenticated scraping behind logins using Bring Your Own Session (BYOS), enabling scraping of paywalled and member-only content through captured cookies.
• Python SDK Official Python client installable via pip install alterlab, offering full-featured integration with async support, batch methods, type hints, and automatic tier selection.
• Node.js SDK Official TypeScript-first SDK installable via npm install @alterlab/sdk (also npm install alterlab), featuring full type safety, ESM/CJS support, and streaming capabilities.
• MCP Server Model Context Protocol server for AI agent integration that enables Claude Code, Cursor, Windsurf, Codex, and Gemini CLI to scrape, extract, and search the web autonomously; installable via npm install alterlab-mcp-server.
• n8n Node Native n8n workflow automation node for drag-and-drop scraping; install via npm install n8n-nodes-alterlab to trigger scrapes from any workflow and pipe results to Slack, Sheets, or databases.
• Chrome Extension Browser extension for cookie capture that enables Bring Your Own Session (BYOS) authenticated scraping behind logins, allowing scraping of gated and member-only content.

Quantifiable outcome

• Up to 70% fewer tokens compared to raw HTML parsing
• +5 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration12 records

AI capability10 records

Feature8 records

Partnerships

Four partnerships are on record, tiered core.

• LangChaincoreTechnology or IntegrationOfficial integration with LangChain AI framework. Enables LangChain-based applications to use AlterLab's web scraping API for data retrieval in LLM workflows.
• LlamaIndexcoreTechnology or IntegrationOfficial integration with LlamaIndex AI framework. Allows LlamaIndex-based applications to leverage AlterLab for structured data extraction into AI pipelines.
• Claude CodecoreTechnology or IntegrationClaude Code AI coding assistant can use AlterLab via MCP server for web scraping and data extraction capabilities.
• CursorcoreTechnology or IntegrationCursor AI IDE integration via MCP server, enabling developers to scrape web data directly within the coding environment.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Apify: Cloud scraping platform with marketplace of 19,000+ pre-built Actors. Directly competes on web scraping-as-a-service for developers, with both targeting AI/data engineers. Named comparison target.
• Firecrawl: AI-focused web scraping API optimized for LLM data ingestion. Strongly overlapping target customer (AI engineers building RAG pipelines) and similar markdown/JSON output features. Named comparison target.
• ScrapingBee: Web scraping API with headless browser rendering and proxy management. Same developer/API-first positioning with tiered complexity pricing similar to AlterLab's 5-tier system. Named comparison target.
• ScraperAPI: Direct API-first competitor offering proxy rotation, browser rendering, and CAPTCHA solving. Closest pure-play rival with similar developer positioning and tiered pricing model. Named comparison target.
• ZenRows: Web scraping API targeting similar developer segment with anti-bot bypass and headless browser features. Comparable pricing tiering and developer-first GTM.

Broad incumbents

• Zyte (formerly Scrapinghub): Established web data extraction company with Scrapy Cloud, AI-powered extraction, and enterprise services. Provides overlapping scraping API with broader data services portfolio.
• Bright Data: Largest web data platform with proxy networks, scraping APIs, and datasets. Direct overlap on scraping API and residential proxies; broader portfolio includes 10+ data products and datasets. Named comparison target by AlterLab.
• Oxylabs: Enterprise-focused proxy and web scraping provider with large proxy network and AI-powered Unblocker. Overlaps on scraping API while serving larger enterprise customers.

Emerging players

• Diffbot: AI-powered web data extraction with KG and structured data APIs. Overlaps on structured extraction capabilities with knowledge graph approach to AI-driven scraping.
• Tavily: AI-focused search and web data API built specifically for LLM agents and RAG pipelines. Direct overlap on AI agent web access use case, though narrower (search-focused vs. full scraping).

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/AlterLabIO
• LinkedInlinkedin.com/company/alterlabio

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about AlterLab