Spider
The web data infrastructure for AI, returning clean markdown or JSON from any website in a
Spider is an API for scraping, crawling, and searching the public web, backed by its own browser engine and proxy network. It renders pages the way a user would, extracts content as markdown or JSON, and streams results in order for use in RAG pipelines and agents.
The platform includes a scraping and crawl API, a native browser engine, and a residential and ISP proxy network, all accessed with one key. It integrates with frameworks such as LangChain, LlamaIndex, CrewAI, AutoGen, Agno, FlowiseAI, Langflow, and Dify, along with an MCP server, official SDKs for Python, Node, and Rust, and connectors for n8n, Zapier, S3, GCS, Supabase, and Google Sheets. Output formats include HTML, plain text, markdown, JSON, JSONL, CSV, and XML.
Spider is aimed at developers and teams building RAG systems, AI agents, and data pipelines. It offers a pay-as-you-go plan with no minimum balance and no expiration, billed on bandwidth and compute, with failed requests costing nothing. A separate Unlimited plan is priced by concurrency on a flat monthly basis, and AI Studio natural-language endpoints are available as an additional plan.
11 alternatives to Spider
Ranked by how well each tool replaces Spider: shared features, audience, price and popularity.
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Covers 6 of 15 key features and starts cheaper.
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