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Open Source

Auto Insurance Data Tools

Collecting and analyzing auto insurance rate data directly from state Department of Insurance websites. No commercial intermediaries, just public .gov data.

Why We Built This

Most auto insurance rate data published online comes from a single commercial data vendor, relicensed by dozens of publisher sites. We built these tools for the QuoteFii blog to go directly to the source: state Departments of Insurance, which publish rate comparison data derived from the same regulatory filings.

Every data point is sourced from .gov websites (Tier 1 sources). No commercial intermediaries, no relicensed data. Just public data from the regulators who oversee the insurance industry. We use this data to power our state-by-state cost guides and rate factor analysis.

What We're Building

Open-source scrapers, parsers, and validators for state-level insurance data.

Live

State DOI Rate Scraper

Queries state DOI rate comparison tools with multiple driver profiles to extract carrier-specific rates and isolate rate factor impacts (age, credit, driving record).

Python Playwright Firecrawl
Supported states: TX (HelpInsure API), AL (Compare Premiums), AZ (PDF report). More being added.
In Progress

50-State DOI Data Collection

Systematic collection of auto insurance data from all 50 state DOIs + DC. Rate factors, carrier rates, complaint data, and discount information.

Airtable TypeScript
Progress: 3 of 51 jurisdictions complete.
Live

Source Integrity Checker

Pre-commit hook that verifies source citations match data origins. Blocks commits where source attribution changes without corresponding data value changes.

Bash Git Hook

Data Sources

All data comes from Tier 1 government and regulatory sources.

Source Tier Data Provided
NAIC Auto Insurance Database Report Tier 1 National and state average premiums, market share, year-over-year trends
BLS CPI (Motor Vehicle Insurance) Tier 1 Insurance price inflation, monthly index values
State DOI Rate Comparison Tools Tier 1 Carrier-specific rates by driver profile, factor multipliers
NHTSA Tier 1 Crash and safety data
FTC Tier 1 Consumer protection, telematics enforcement
State Departments of Insurance (50 + DC) Tier 1 Minimum coverage requirements, consumer resources

Rate Factor Methodology

To isolate how individual factors (age, credit score, driving record) affect insurance rates, we query state DOI tools with standardized driver profiles that vary exactly one factor at a time. The ratio between the variant rate and the baseline rate gives us the factor multiplier. See our full cost breakdown by age and profile for how these multipliers translate to real dollar amounts.

Example: Texas DOI (HelpInsure)

Factor Multiplier Carriers Matched
Age 16-24 (vs. 25-64 baseline) 3.06x 16
Age 65+ (vs. 25-64 baseline) 0.95x 19
Poor credit (vs. good baseline) 1.40x 16
Average credit (vs. good baseline) 1.18x 18
At-fault accident (vs. clean record) 1.56x 18

Source: Texas Department of Insurance, HelpInsure.com. Data collected March 2026.

See How Your Rate Compares

Use our free calculator to check whether you're overpaying for auto insurance.

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