Get your API key instantly. Pay only for what you use. No contracts. No surprises.
| Plan | Pricing |
|---|---|
| Offender Search API – On Demand | First 50 requests: FREE. Next 2,000: $0.20/call. Afterwards: $0.15/call. |
| Offender Search API – Extensive Mode | +$0.05/call surcharge on top of base rate for state-level enriched data. |
| Offender Search API – Fuzzy Matching | FREE during open beta. +$0.02/call after beta. |
| Offender Search API – GIS Add-on | From $49/mo. 3 tiers with included calls and discounted overage. Up to 92% savings. |
| Offender Search API – Enterprise | For 10k+ Requests Per Month. Contact Us for Details. |
For developers and growing teams
For 10k+ requests per month
Billed monthly based on usage. All plans include access to every API endpoint.
Sex Offender API and Batch Processing API: Discover flexible and affordable pricing plans at Offenders.io, search sex offenders by name, DOB, address, zip code, and more; batch processing lets you upload .csv or text files to run lookups with ease. Our subscription options are designed to suit your needs, whether you're just starting or managing high-volume searches. Get started with 50 free requests each month, with additional requests starting at just $0.15 each. For businesses expecting more than 10,000 monthly requests, contact us for customized enterprise pricing.
Need geospatial radius search? Add a GIS tier to your On Demand plan from the dashboard and save up to 92% on location-based calls. Regular name, address, and ZIP searches are always billed at your On Demand rate.
| Starter | Pro | Enterprise | |
|---|---|---|---|
| Base | $49/mo | $499/mo | $1,499/mo |
| Included | 2,000 calls | 25,000 calls | 100,000 calls |
| Overage | $0.025/call | $0.018/call | $0.012/call |
Switch tiers instantly from your dashboard — you only pay the prorated difference. No penalties, no double billing.
Get deeper, state-level enriched data with every search. Add mode=extensive to your request to receive the full stateData schema — offenses, vehicles, victim info, registration status, compliance status, risk level, and more across all 50 states, DC, 5 territories, and 127 tribal jurisdictions.
| Surcharge | +$0.05/call |
| Added to | Your On Demand or Enterprise rate |
No subscription required. Simply add the parameter to any search request. Billed per call on top of your base rate.
Add fuzzy=true to match against typos, nicknames, and name variants across 900K+ offender records.
| Current price | FREE (Open Beta) |
| After beta | +$0.02/call |
No opt-in needed. Add the parameter and start matching. We will notify all customers before beta pricing ends.
See why 2,000+ organizations chose us over other registry APIs.
| Feature | Offenders.io | Other Registry APIs |
|---|---|---|
| Data Freshness | Real-Time Registry Sync | Monthly or quarterly snapshots |
| Response Time | <200ms | 1-5 seconds typical |
| GIS Radius Search | ✓ Native | ✗ Not available |
| Fuzzy Name Matching | ✓ Typos, nicknames, partials | ✗ |
| Records | 900K+ | 500K-770K |
| Fields | 70+ incl stateData | 10-15 basic |
| Nickname & Alias | ✓ Built-in | ✗ |
| AI / MCP | ✓ Native | ✗ |
| Batch CSV | ✓ No-code upload | ✗ |
| Access Model | Instant Self-Serve | Sales calls or waitlists common |
| Free Tier | 50 calls/month | Varies — often none |
Why we are the top-rated Sex Offender API for developers. See how our real-time data and micro-transaction pricing stack up against traditional background check services.
| Feature | Offenders.io | Traditional (Checkr, GoodHire) |
|---|---|---|
| Data Source | Official state registry sources | Aggregated / third-party feeds |
| State Coverage | 50 states, territories, and tribes, 70+ fields per state | Limited state-level depth |
| Data Freshness | Real-time registry sync | Monthly / Quarterly snapshots |
| Pricing | $0.15 – $0.20 / call | $29.99+ / report |
| Setup | Instant API key, $0 | Contracts required |
| Response Time | < 200ms | Minutes to Days |
| GIS Radius Search | ✓ Exclusive | ✗ |
| Fuzzy Name Matching | ✓ Typos, nicknames, partials | ✗ |
| Batch Processing | ✓ CSV Upload | ✗ |
| AI / MCP Integration | ✓ Native MCP Server | ✗ |
| Enterprise SLA | 99.9% uptime | Varies |
| Free Tier | 50 calls/month | ✗ |
We built the best Sex Offender API specifically for modern engineering teams. Forget SOAP, XML, and enterprise contracts.
Stop wrestling with legacy SOAP services. We provide clean, standardized JSON responses that integrate into any stack (Node, Python, Go) in minutes.
The only vendor offering Geospatial Radius Search. Pass a lat/lng to find offenders within 1-100 miles. Perfect for safety maps and real estate.
Built for scale. Our infrastructure handles millions of requests with sub-second response times and a 99.9% uptime guarantee, so you never go dark.
Have a large list? Skip the code and verify thousands of records instantly. Upload your CSV or text files via our secure batch portal for instant results.
Common questions about our Enterprise Scalability and Pricing.
Your first 50 API calls are free every month — you'll only be charged after that.
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