1CRM enables businesses to create long-lasting customer relationships and experiences with the most intuitive, customizable and cost-effective customer relationship management (CRM) solution on the market. By focusing on a comprehensive and easy to customize CRM solution, 1CRM is putting tailored-fit CRMs within reach of businesses everywhere.

With so many CRMs available, what sort is right for you? You'll see CRMs that are limited sales & marketing CRM products, others that are good at Mass Emailing, and then some that include Order Management, Service Management, or Project Management.

For businesses with up to about 250 users, the All-in-One type of CRM has proven popular - and that's where 1CRM fits in. 1CRM offers a Sales & Marketing CRM with strong Mass Email capabilities. But it also includes very comprehensive Order Management (Quotes, Invoices, Payments - as well as the Purchasing side), Service Management and Project Management. Throw in Timesheets, Expense Reports, Vacation & Sick Day tracking - and you can see why they call us an All-in-One CRM!

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type.

What it does

• Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly
• Radius search — centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result pct_inside overlap percentage for spatial queries
• Unified lookup endpoint — accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
• Autocomplete/typeahead — cities, counties, metros, states, FSAs, ZIPs
• Point-to-point distance — between any two postal points
• Census ACS demographics — 2011–2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
• Boundary lookups — Census tracts, congressional districts, state legislative areas, school districts — with computed intersection percentages per ZIP

What makes it different

• Licensed commercial data — not commodity or scraped sources
• Canadian postal coverage — most peers in this space are US-only
• True spatial radius — not just centroid haversine
• 14 years of historical ACS depth via API — unusual outside of raw Census downloads
• One endpoint for all of North America — no country-detection or input-routing logic to maintain on the client side

Pricing

• Free — 2,500 lookups/day, no credit card required, no expiry
• Developer — $49/mo, 100K credits, 300/min
• Professional — $149/mo, 350K credits, 300/min
• Business — $499/mo, 1.5M credits, 600/min
• Credit packs — one-time, from 25K ($19) up to 2M ($799)

Resources

• Docs
• OpenAPI spec
• Postman collection