docs.instasent.com

Build customer messaging with fewer surprises.

Reference, guides and SDKs for the four public APIs that power Instasent — from audience management to transactional SMS, over HTTP and SMPP.

/product-api

Product API

Organizations, projects, audiences and datasources — the control plane. Also sends transactional messages registered against project contacts.

/ingest-api

High-volume ingestion of contacts and events. A subset of Product, scoped to a single datasource.

/transactional-api

Direct messaging — SMS today, more to come. Available over HTTP and SMPP, with SDKs in five languages. Also known as the SMS API.

/legacy-api

The original root API kept alive for existing integrations. Not recommended for new work.

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Machine-readable

The full portal is mirrored as llms.txt plus a per-API llms-full.txt. Point an AI assistant at the docs or drop the files into its context.