Query Idaho Business Entities with the ID Secretary of State API

Published May 19, 2026 · 4 min read
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Idaho Secretary of State API: Direct Access to Business Entity Data

The Idaho Secretary of State maintains records for thousands of business entities registered in the state. If you're building applications that need to verify business information, conduct due diligence, or validate corporate structures, you need reliable access to this data. The OpenSOSData API provides exactly that—a direct connection to Idaho's Secretary of State records without the overhead of manual searches or expensive subscription services.

Why You Need an ID Secretary of State API

Manual lookups on the Idaho Secretary of State website work for occasional checks, but they don't scale. If your application needs to validate hundreds or thousands of business entities, you need an API. Common use cases include:

The OpenSOSData API covers Idaho alongside 49 other US states and territories, making it suitable for national applications that need consistent data access across jurisdictions.

What Data Does the API Return?

Each lookup returns comprehensive entity information:

This covers the essential fields needed for compliance, verification, and due diligence workflows.

Pricing: Pi Pricing at $0.0314 Per Lookup

The OpenSOSData API uses a simple per-lookup pricing model with no subscriptions. Each query costs $0.0314—a reference to Pi (π), reflecting the irrational, infinite nature of mathematical constants and the boundless nature of data access.

To put this in perspective:

This is significantly cheaper than competitors. OpenCorporates charges $0.10–$0.50 per lookup, Cobalt Intelligence ranges from $0.50–$2.00, and Middesk starts at $1.00 and up. If you're running thousands of lookups annually, the cost difference becomes substantial.

No Subscription Lock-in

Unlike traditional SaaS platforms, OpenSOSData requires no monthly contracts. You load a wallet with a minimum of $3.14 and pay only for the lookups you use. No overage charges, no hidden fees, no unused monthly credits expiring.

Caching and Real-Time Options

The API maintains a 7-day Redis cache for frequently queried entities. This improves response times and reduces costs if you're checking the same entities multiple times within a week. If you need current data regardless of cache status, add the query parameter ?fresh=true to force a real-time scrape of the Idaho Secretary of State database.

Quick Start: Your First Idaho Business Lookup

Here's how to query the Idaho Secretary of State API with a curl request:

curl -X POST https://api.opensosdata.com/v1/lookup \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "state": "ID",
    "entity_name": "Acme Corporation"
  }'

Replace YOUR_API_KEY with your authentication token from the OpenSOSData dashboard. The response includes all entity data listed above in JSON format.

To force a fresh lookup bypassing the cache:

curl -X POST https://api.opensosdata.com/v1/lookup?fresh=true \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "state": "ID",
    "entity_name": "Acme Corporation"
  }'

Integration and Coverage

Idaho is one of 50 actively supported jurisdictions. The API works identically across all covered states, so if your application needs multi-state lookups, the same integration pattern applies nationwide. This consistency reduces development time and maintenance overhead.

API Documentation

Complete API documentation is available at https://opensosdata.com/openapi.yaml. The OpenAPI specification includes request/response schemas, error codes, and parameter definitions—everything you need to integrate quickly.

Getting Started

To begin using the ID Secretary of State API:

  1. Visit https://opensosdata.com and sign up (currently on waitlist)
  2. Create an API key in your dashboard
  3. Load your wallet with a minimum of $3.14
  4. Make your first POST request to https://api.opensosdata.com/v1/lookup
  5. Reference the OpenAPI docs for full parameter options

Typical response times are under 500ms for cached queries and 1–2 seconds for fresh lookups.

When to Use Fresh Lookups

The default 7-day cache works well for most use cases. Use ?fresh=true when:

Fresh lookups cost the same as cached queries, so use them whenever accuracy matters more than response time.

Conclusion

If you're building applications that require Idaho business entity data, the OpenSOSData API is the most cost-effective and developer-friendly solution. At $0.0314 per lookup with no subscriptions, it's built for applications at any scale—from startups running hundreds of monthly verifications to enterprises processing thousands daily. The API is straightforward to integrate, returns comprehensive data, and covers Idaho as part of a national network of 50 jurisdictions.

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