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Overview

REST API for the Darwin Evolution traceability platform (Tracium surface).

Multi-party value chain traceability, compliance and Digital Product Passport. One platform, three products (Captia, Tracium, Fidenta). This spec covers the Tracium surface (REST traceability + webhooks).

Base URL

Production and sandbox base URLs are provisioned per tenant. Contact the team for credentials and your environment URL.

Authentication

Most endpoints require either a Bearer JWT token (user-driven) or an API key (server-to-server). See Authentication for the flows.

Prepared transaction pattern

Write operations use a 2-step flow: POST /<resource>/prepare returns an unsigned transaction, the client signs locally, then the client submits directly to the chain RPC. Optionally, the client registers the txHash via POST /api/v1/tx/track so Tracium can monitor confirmation. The actor’s private key never touches the platform. See Tracium overview.

Security scheme type: http

Bearer format: JWT

Security scheme type: apiKey

Header parameter name: X-API-Key