Spider
A web crawling, scraping and search API for AI agents and RAG that returns pages as markdown or JSON, backed by its own browser engine and a residential proxy network.
About Spider
Agents and RAG pipelines need clean content from websites that have no API, render with JavaScript or block simple scrapers.
Who it’s for
- Developers feeding web pages into RAG pipelines and agent tools
- Data teams crawling whole sites at high volume
When to consider it
Consider Spider when you need to crawl or scrape many pages into markdown through one API key that also covers a cloud browser and rotating proxies, with integrations for LangChain, LlamaIndex, CrewAI and MCP.
Tradeoffs & limitations
- Pay as you go starts at $1 per GB of content plus $0.0001 per minute of compute, from a $5 top-up that never expires; the Unlimited plan instead sells concurrency, from $40 a month for two concurrent requests.
- The Unlimited plan does not support social media automation, Google search or multi-account use; the open-source spider crawler is MIT licensed, while the hosted API is a paid service.
SOTA overview · Documentation-based assessment · Sources & review method
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Sources & review method
Documentation-based assessment · Nov 1, 2026 · Prepared with AI assistance; not a hands-on benchmark.
Checked by SOTA · AI-assisted documentation review. Selection advice is our assessment; verify current requirements for your deployment.
Import history & original evidence
Spider official website
A web crawling, scraping and search API for AI agents and RAG that returns pages as markdown or JSON, backed by its own browser engine and a residential proxy network.
Based on official pages and announcements checked on 2026-11-01. No hands-on test, performance benchmark or popularity ranking is claimed.