Looking for a Firecrawl Alternative?
Tabstack is a structured output API for AI agents. If you need schema-enforced JSON extraction, AI transformation, or autonomous research instead of site-wide crawling, here is how it compares.
Firecrawl is good at what it does: crawling entire sites and producing markdown. But developers running into its limits usually hit the same two walls:
- No AI transformation step. Firecrawl extracts content and crawls sites. There’s no equivalent to Tabstack’s
/generate/json: fetch a URL, apply custom AI instructions, and return structured output in one call. If categorization, scoring, or transformation is part of the extraction job, that’s a separate LLM call you write yourself. - No multi-source cited research. Firecrawl’s
/agentdoes autonomous web discovery — you describe what you want, it finds and extracts it. That’s different from Tabstack’s/research: a question in, multi-source synthesis out, with citations. Firecrawl doesn’t have that.
Tabstack is a direct alternative for the extraction and research use cases. Here’s what you need to know.
Schema-driven extraction, included
Section titled “Schema-driven extraction, included”Tabstack’s /extract/json is schema-driven: you define the shape of the data you want, pass a URL, get back exactly that structure. No separate subscription. No natural language prompt to tune.
import Tabstack, { APIError } from '@tabstack/sdk'
const client = new Tabstack({ apiKey: process.env.TABSTACK_API_KEY })
const result = await client.extract.json({ url: 'https://example.com/pricing', json_schema: { type: 'object', properties: { plans: { type: 'array', items: { type: 'object', properties: { name: { type: 'string', description: 'Plan name' }, price: { type: 'number', description: 'Monthly price in USD' }, features: { type: 'array', items: { type: 'string' }, description: 'Included features' } } } } } }})
console.log(result.plans)The schema is the spec. The API delivers it.
Autonomous cited research - not available in Firecrawl
Section titled “Autonomous cited research - not available in Firecrawl”Tabstack’s /research endpoint takes a question, autonomously searches the web, reads and synthesizes multiple sources, and returns a cited answer. One API call.
const stream = await client.agent.research({ query: 'What are the current pricing models for cloud browser automation APIs?', mode: 'fast'})
for await (const event of stream) { if (event.event === 'complete') { console.log(event.data.report) const cited = event.data.metadata.citedPages ?? [] console.log(`Cited ${cited.length} sources:`) for (const page of cited) { console.log(`- ${page.title ?? '(untitled)'}: ${page.url}`) } } if (event.event === 'error') { throw new Error(event.data.error.message) }}No orchestration code. No source selection. No citation pipeline to build. Firecrawl’s /agent handles autonomous web discovery and extraction, but it’s scoped to extraction, not multi-source research with citation synthesis across arbitrary sources in a single call.
AI transformation - also included
Section titled “AI transformation - also included”Tabstack’s /generate/json fetches a URL, applies your AI instructions, and returns structured output in one call. Categorize, summarize, score, rewrite. No separate LLM step.
try { const result = await client.generate.json({ url: 'https://competitor.com/blog', instructions: 'For each article, identify the target audience and assign a relevance score 1-10 for a developer focused on AI agents.', json_schema: { type: 'object', properties: { articles: { type: 'array', items: { type: 'object', properties: { title: { type: 'string' }, target_audience: { type: 'string' }, relevance_score: { type: 'number', description: '1-10 score for AI agent developers' } } } } } } }) console.log(result.articles)} catch (err) { if (err instanceof APIError) { console.error(`API error ${err.status}: ${err.message}`) throw err } throw err}What Firecrawl still does better
Section titled “What Firecrawl still does better”Being direct: if site-wide crawling is the primary use case, Firecrawl is the stronger choice. Tabstack is a per-URL API, with no recursive link following, no sitemap traversal, no 10,000-page site ingestion in one call.
If your job is bulk content ingestion into a vector store, Firecrawl’s /crawl is built for that. Tabstack is not.
If your job is extracting structured data from specific pages, transforming content with AI, or running autonomous research, Tabstack is the cleaner path.
Pricing comparison
Section titled “Pricing comparison”| Tabstack | Firecrawl | |
|---|---|---|
| Structured extraction | Included, schema-first | Available via /scrape (schema-driven, single pages) or /agent for autonomous multi-page |
| AI transformation | Included (/generate/json) | Not available - requires a separate LLM call |
| Autonomous research | Included (/research) | Partial - /agent for autonomous extraction; no citation synthesis |
| Markdown extraction | Included (/extract/markdown) | Core product |
| Site-wide crawling | Not available | Core product |
SDK coverage
Section titled “SDK coverage”Tabstack has official SDKs for TypeScript and Python. Installation:
npm install @tabstack/sdk # TypeScriptpip install tabstack # PythonGet started
Section titled “Get started”API key at console.tabstack.ai. First structured extraction in under 5 minutes.