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T3 API guides

Step-by-step walkthroughs of everyday Metrc tasks with T3 API, and the features that make them faster, from the T3 Blog.

LatestT3 API

Introducing the T3 Search Engine: All of Metrc in One API Call

The T3 Search Engine finds Metrc packages, transfers, tags and strains from a partial tag, manifest number or name with one Metrc search API call.

Matt Frisbie

November 6, 2026

One consistent REST interface to Metrc data across every Metrc state, with interactive OpenAPI documentation.

Free

Bulk actions, label printing, reports, and more, right inside Metrc.

Installs from the Chrome Web Store.

Full platform

Full access to the extension, the T3 API, and the OpenTag mobile app in one subscription.

30-day risk-free trial. Cancel anytime during the trial.