Skip to content

API Guides ​

Start with Authentication, then read the guide for the thing your integration does. Every page is written against the published contract the rest of this portal is generated from.

GuideWhat it answers
AuthenticationOne key, minted by an admin, carrying an organisation and a reach.
ScopesOne row per resource, three states each, and the verb that decides read from write.
Paginationoffset and limit, the caps that refuse rather than truncate, and how to walk a table.
IdempotencySend a write twice with the same Idempotency-Key and it happens once.
ErrorsEvery code a keyed refusal can carry, and what a client should do about each.
Rate limitsThe per-key, per-minute quotas, and the headers to read them by.
WebhooksSigned deliveries, retries, and a receiver that verifies its own payloads.
VersioningDate trains, how a key pins to one, and the promise about breaking changes.
MCPThe same keys open an MCP door, with a read-only rule for a key that has one.

Runnable code for every guide is on the Examples page, and every operation is listed in the Reference.

Tightly API, version 2026-11.