Dev Blog
Technical writing from the team building ONCE.
The ONCE Fraud API: A One-Way Mirror Over the Risk Engine
How we turned an internal fraud-scoring engine into a public API. The design is mostly about what we refuse to return: no vendors, no IPs, no PII, no internal flag ids.
ONCE Fraud Detection: Automated Account Risk Scoring
How we built ONCE Fraud Detection, a system that computes daily account risk scores from audio fingerprints, network signals, streaming patterns, and AI conversation analysis.
Meet Note
The universal assistant that lives alongside your workflow — in the app, on Discord, and wherever you need help.
The Publishing Agent
An AI agent that auto-drafts publishing metadata using citation-backed web research, strict evidence gating, and deterministic share math.
The Edit Agent
A small agent that lets users edit release metadata by describing what they want changed, no forms required.
Building the ONCE MCP Server
How we built a Model Context Protocol server for AI-powered music distribution.
AI-Powered Genre Mapping
How we built a smart genre resolution system that maps free-text genres to distributor taxonomies.
The Validation Agent
An AI agent that sits between conversation and distribution, enforcing Apple Music style rules and catching metadata drift.