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Katzilla

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The data backbone for AI agents, providing trusted government data with built-in citation.

AI AgentsData & DatabasesAPI ToolsAI Research
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Tracked since2026
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The Bottom Line

Entry price

Free plan available, paid tiers above

Biggest pro

Ensures high trustworthiness and reduces AI hallucinations with primary source citations.

Biggest con

Primarily focused on US government data, which may limit utility for international-only applications.

TL;DR - Katzilla

  • Provides a single API for over 250,000 US government datasets.
  • Ensures AI agent trustworthiness with built-in citation from primary sources.
  • Offers tools for data access, web scraping, monitoring, and natural language querying of government information.
Pricing: Free plan available
Best for: Growing teams

What is Katzilla?

Editorial review
Katzilla provides a comprehensive data backbone for AI agents, focusing on making US government data accessible and trustworthy. It wraps over 217 tool-use actions across 27 agent-ready categories, encompassing more than 250,195 validated Data.gov datasets, SEC filings, FDA recalls, Federal Register, Congressional records, clinical trials, labor stats, and court opinions. The core offering, Katzilla Data, provides access to this vast array of primary sources via a single API key, with citation metadata baked into every response to ensure accuracy and prevent AI hallucinations. Beyond the core API, Katzilla offers specialized tools: Scrape for extracting data from state, local, and international government web pages not available via API; Signal for monitoring primary sources and receiving curated digests via email, webhooks, RSS, or PagerDuty; and Ask for natural-language queries that provide cited answers from primary sources. This suite of tools is designed for AI agents where accuracy and verifiable sources are critical, such as in legal research, clinical decision-making, compliance, financial analysis, journalism, and public policy.

Available on: Web

how we evaluateSourcekatzilla.dev ↗

Pros & Cons

Pros

  • Ensures high trustworthiness and reduces AI hallucinations with primary source citations.
  • Consolidates a vast array of government data behind a single, easy-to-use API.
  • Offers specialized tools for comprehensive data access, including web scraping and monitoring.
  • Supports critical applications where accuracy and verifiable sources are paramount.
  • Provides a generous free tier for evaluation and prototyping.

Cons

  • Primarily focused on US government data, which may limit utility for international-only applications.
  • Higher usage tiers can become costly for very large-scale operations.
  • Reliance on API for core functionality means developers need to integrate it into their agents.

Key Features

Single API key for all major US government data sources217+ tool-use actions across 27 agent categoriesAccess to 250,195 validated Data.gov datasetsBuilt-in citation metadata for every responseKatzilla Scrape for non-API government web pagesKatzilla Signal for monitoring primary sources and curated digestsKatzilla Ask for natural-language queries with cited answersSDKs for various programming languages

Pricing Plans

Pricing checked Jun 8, 2026

Free

Free

  • 1,000 requests / month
  • 30 req / min
  • Every data source
  • Every SDK + MCP
  • Citations on every response

Pro

$49 / mo

  • 100,000 requests / month
  • 25 req / sec
  • Webhooks
  • Overage at $1 / 1K
  • Priority support SLA

Business

$199 / mo

  • 500,000 requests / month
  • 100 req / sec
  • Cross-source joins
  • Overage at $0.80 / 1K
  • 24h support SLA

Starter

$499 / mo

  • 2M / mo
  • 200 req/s
  • Higher volume
  • SLA
  • Priority support

Growth

$1,499 / mo

  • 10M / mo
  • 500 req/s
  • Higher volume
  • SLA
  • Priority support

Scale

$4,999 / mo

  • 50M / mo
  • 1,000 req/s
  • Higher volume
  • SLA
  • Priority support
Calculate your costView full pricing

How Katzilla's pricing compares

At $49/mo, Katzilla is mid-range of its 4 direct competitors ($1 to $500/mo across the set).

Exa MCP Server
$1
Firecrawl MCP
$16
Tavily
$30
Katzilla
$49
Querio
$500

Entry paid plan, monthly. Pricing checked Jun 8, 2026.

Reviews

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All Katzilla alternatives7+ tools ranked, pricing + verdict per pickKatzilla vs Firecrawl MCPHead-to-head: features, pricing, who winsKatzilla vs Perplexity MCPHead-to-head: features, pricing, who winsKatzilla vs Iris.aiHead-to-head: features, pricing, who wins

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Katzilla FAQ

How does Katzilla ensure the trustworthiness of its data for AI agents?

Katzilla provides a data backbone for AI agents by focusing on US government data and baking citation metadata into every response. This approach ensures accuracy and helps prevent AI hallucinations by grounding information in verifiable primary sources.

Which teams would benefit most from using Katzilla?

Teams involved in legal research, clinical decision-making, compliance, financial analysis, journalism, and public policy would benefit most from Katzilla. Its focus on accuracy and verifiable sources is critical for these applications where reliable data is paramount.

How does Katzilla compare to Perplexity MCP for data access?

Katzilla specializes in providing access to over 250,195 validated US government datasets via a single API key, with built-in citation for trustworthiness. While Perplexity MCP offers broad search capabilities, Katzilla's core strength lies in its deep, verifiable access to primary government sources.

What kind of data sources does Katzilla integrate?

Katzilla integrates a vast array of US government data sources, including Data.gov datasets, SEC filings, FDA recalls, the Federal Register, Congressional records, clinical trials, labor statistics, and court opinions. It wraps over 217 tool-use actions across 27 agent-ready categories.

Does Katzilla include a free tier for users?

Yes, Katzilla offers a generous free tier, which is suitable for evaluation and prototyping purposes. Paid plans are available for users requiring more extensive usage and additional features.

What are the limitations of Katzilla's data coverage?

Katzilla primarily focuses on US government data, which means its utility may be limited for applications that require international-only data. Additionally, higher usage tiers can become costly for very large-scale operations.

Can Katzilla extract data from government web pages not available via API?

Yes, Katzilla offers a specialized tool called Scrape, which is designed to extract data from state, local, and international government web pages that do not provide API access. This complements its core API offering for comprehensive data acquisition.

Source: katzilla.dev

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