Haytham API Documentation.

Reference for Sierra demand infrastructure and Atlas sovereign decision architecture for data fusion and HUMINT. Every endpoint is production-hosted in the EU.

Sections

• Authentication (HMAC-SHA256 signing)
• SDK Integration
• Demand Delivery: POST /v1/demand
• Conversion Callback: POST /v1/conversions
• Billing Reconciliation: GET /v1/billing/events
• Branded Checkout: GET /v1/checkout/render
• Atlas Signal Feed, Entity Graphs, Briefings
• Errors, Rate Limits, Consumer Rights, Changelog