AR Secretary of State API: Real-Time Business Lookups

Arkansas Secretary of State API: Developer Guide

The Arkansas Secretary of State maintains public records on business entities registered in the state. If you need programmatic access to this data—whether for compliance verification, due diligence, or integration into your application—an API solution eliminates manual lookups and spreadsheet management.

OpenSOSData provides REST API access to Arkansas business entity records directly from the Secretary of State database. This guide covers what the API returns, how to use it, pricing, and how it compares to alternatives.

What Is the AR Secretary of State API?

The Arkansas Secretary of State API is a REST endpoint that queries live business entity records from Arkansas's official registry. Instead of visiting the Secretary of State website manually, you send a structured request with a business name or ID, and receive structured JSON with current entity information.

The API covers all active business types in Arkansas: corporations, LLCs, partnerships, nonprofits, and other registered entities.

What Data Does the API Return?

A single lookup returns:

Entity name (registered name in Arkansas)
Entity type (Corporation, LLC, Partnership, etc.)
State ID or registration number
Current status (Active, Inactive, Dissolved)
Formation date
Registered agent name and full address
Principal/registered office address
Officer and director names

This data is sufficient for KYC workflows, business verification, due diligence checks, and compliance monitoring.

Pricing: $0.0314 Per Lookup

OpenSOSData charges $0.0314 per lookup—a reference to pi, the fundamental mathematical constant. No subscription fees. No minimum monthly commitment.

The minimum wallet to get started is $3.14 (which provides 100 lookups). Pay only for what you use.

How This Compares to Competitors

OpenCorporates: $0.10–$0.50 per lookup
Cobalt Intelligence: $0.50–$2.00 per lookup
Middesk: $1.00+ per lookup (often bundled with verification)

At $0.0314 per lookup, OpenSOSData is 3–60x cheaper than established competitors. The trade-off is straightforward: you get data retrieval without added verification layers. If you need only the raw data, the cost difference is substantial at scale.

Caching and Performance

The API automatically caches responses in Redis for 7 days. Repeated lookups for the same entity within that window are free—no additional charges.

If you need fresh data outside the cache window, append ?fresh=true to force a real-time scrape directly from the Arkansas Secretary of State registry.

Arkansas Coverage

OpenSOSData actively supports Arkansas (AR) along with 28 other US states: NV, DE, AK, TX, CO, ME, MD, IA, KY, GA, NH, OH, MI, MN, ND, NJ, NE, MO, SC, WI, OR, SD, ID, AL, NC, FL, MA, RI, and VT.

If you need multi-state lookups, you can query multiple states from a single account.

API Endpoint and Authentication

The Arkansas Secretary of State API endpoint is:

POST https://api.opensosdata.com/v1/lookup

Authentication is key-based. Include your API key in the request header or body (see example below).

Quick Start: Your First AR Lookup

Here's a real curl example to look up a business in Arkansas:

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

Response:

{
  "entity_name": "ACME CORPORATION",
  "entity_type": "Business Corporation",
  "state_id": "C0123456",
  "status": "Active",
  "formation_date": "2010-05-15",
  "registered_agent": {
    "name": "John Smith",
    "address": "123 Main St, Little Rock, AR 72201"
  },
  "principal_address": "456 Oak Ave, Fayetteville, AR 72701",
  "officers": [
    {
      "name": "Jane Doe",
      "title": "President"
    },
    {
      "name": "Bob Jones",
      "title": "Secretary"
    }
  ],
  "cached": false,
  "lookup_cost": 0.0314
}

The response includes all key fields needed for verification. The cached flag indicates whether this result came from the 7-day cache (free) or required a fresh lookup (charged).

Use Cases for the AR SOS API

Compliance and Due Diligence

Verify registered agents, principals, and officers before entering partnerships or contracts. Automate checks across multiple counterparties without manual web searches.

Fraud Detection

Compare provided business information against live Secretary of State records. Flag discrepancies in entity status, registered agents, or address changes.

Lending and Credit

Validate borrower entity details during loan origination. Confirm active status and legitimate registration.

Vendor Management

Vet vendors and suppliers automatically during onboarding. Integrate SOS lookups into your procurement workflow.

Data Enrichment

Append official business records to your internal database. Keep company profiles current without manual updates.

Documentation and Integration

Full API documentation is available at:

https://opensosdata.com/openapi.yaml

The OpenAPI spec includes request/response schemas, error codes, rate limits, and additional examples. Use it to generate client libraries in Python, JavaScript, Go, or any language that supports OpenAPI.

Getting Started

Sign up at https://opensosdata.com to join the waitlist and receive your API key. Once approved, create a wallet, fund it with a minimum of $3.14, and begin querying Arkansas business entities immediately.

There are no long-term contracts. Cancel anytime. Your remaining balance stays in your wallet.

Why Choose OpenSOSData for Arkansas Lookups?

Cost: $0.0314 per lookup vs. $0.10–$1.00+ elsewhere
No subscription: Pay only for what you use
Fast: Cached results are instant; fresh lookups return within seconds
Accurate: Data sourced directly from Arkansas Secretary of State
Developer-friendly: Simple REST API, OpenAPI documentation, standard HTTP verbs

Arkansas Business Entity Lookup via REST API