ArcSite Field Drawing and Estimating API
ArcSite field drawing and estimating REST API for mobile CAD, on-site measurement, and sales proposal generation for trades and contractors. Enables AI agents to manage field drawings and as-built documentation for construction workflow automation, handle material takeoff and quantity calculation from field sketches for estimating automation, access proposal generation and pricing data from field measurements for sales automation, retrieve project drawing library and template management for field documentation, manage customer signature capture and digital approval workflow for contract execution, handle drawing sharing and collaboration for multi-trade project coordination, access product catalog integration and material pricing for estimating accuracy, retrieve job site photo and annotation management for field documentation, manage team drawing synchronization for multi-crew field coordination, and integrate ArcSite with CRM, estimating, and accounting systems for end-to-end field sales workflow.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Field drawing and estimating. SOC2. API key/OAuth2. US. Field measurement and drawings.
⚡ Reliability
Best When
An electrical, solar, HVAC, or specialty trade contractor wanting AI agents to automate field measurement, drawing creation, material takeoff, estimating, and proposal generation from job site visits.
Avoid When
ESTIMATE ACCURACY LIABILITY: Automated material takeoff and quantity calculation from field drawings must be verified before customer commitment; automated estimates with measurement errors create contract price disputes and cost overruns. Licensed professional drawing requirements — building permit drawings in many jurisdictions require PE/architect stamp; automated ArcSite field drawings are not licensed professional drawings and cannot substitute for stamped construction documents. Measurement accuracy — automated quantity takeoff from mobile sketch drawings has inherent accuracy limitations compared to survey-grade measurement; automated material orders based on ArcSite quantities require buffer for measurement tolerance. Contract formation — automated proposal generation and digital signature capture creates binding contracts; ensure automated contract terms are reviewed before digital signature workflows are triggered.
Use Cases
- • Generating estimates from field drawings by sales agents
- • Creating as-built documentation from field measurement agents
- • Processing material takeoffs from estimating agents
- • Capturing customer approvals from digital contract agents
Not For
- • Large general contractors requiring full BIM/CAD capability
- • Office-only estimating without field measurement component
- • Non-trade businesses without field measurement or sales
Interface
Authentication
ArcSite uses API key and OAuth 2.0. REST API with JSON. San Francisco, California HQ. Founded 2017. Private (Initialized Capital, Khosla Ventures). Mobile CAD and field estimating for trade contractors. 30,000+ contractor users. Solar, electrical, and HVAC focus. Competes with Hover, Scanifly, and Roofr for field measurement and estimating.
Pricing
San Francisco. Initialized Capital/Khosla-backed. Founded 2017. 30,000+ contractor users. Solar and trade contractor focus. Mobile CAD and estimating.
Agent Metadata
Known Gotchas
- ⚠ ESTIMATE ACCURACY FROM SKETCH DRAWINGS: Automated material takeoff from mobile field sketches has inherent measurement tolerance; automated material orders based on ArcSite quantities require buffer; never automate purchase orders directly from sketch takeoff without measurement verification
- ⚠ Licensed professional drawing restriction — ArcSite field drawings are not PE/architect-stamped documents; automated submission of ArcSite drawings for building permits creates permit rejection in jurisdictions requiring licensed professional drawings
- ⚠ Digital contract formation — automated proposal + e-signature workflow creates binding contracts; ensure proposal terms are reviewed and pricing verified before triggering automated signature capture
- ⚠ Drawing file size for API transfer — complex site drawings with photos can be large; automated drawing retrieval and processing must handle file size variability and implement streaming or chunked download
- ⚠ Offline drawing sync — ArcSite supports offline field drawing creation; automated sync workflows must handle conflict resolution when offline drawings sync back to cloud
- ⚠ Product catalog price staleness — automated estimating using ArcSite product catalog prices must refresh catalog regularly; stale material prices in automated estimates create margin erosion
Alternatives
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Scores are editorial opinions as of 2026-03-07.