eSigKit · v1

Developer documentation

Everything you need to build with the eSigKit signature-management API — endpoints, authentication, webhooks, and language SDKs. Always in sync with the live spec.

Open API reference Live status

API reference

Every endpoint, request schema, and response shape — generated directly from the production OpenAPI spec.

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Quickstart

Coming soon

Authenticate, render your first signature, and embed it in Gmail in under five minutes.

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SDKs

Coming soon

Typed clients for TypeScript, Python, and Go — with retries, pagination, and idempotency built in.

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Guides

Coming soon

How-to articles for the common workflows: bulk-deploying via Gmail API, custom Handlebars templates, multi-org admin via Workspace.

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Webhooks

Coming soon

Subscribe to render, deploy, billing, and audit events — with HMAC-signed payloads and retry semantics.

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Changelog

Coming soon

API version history. Deprecations follow a 14-day notice window per our API versioning policy.

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Base URLs

Three environments matching the SDLC. Use staging for integration tests; never run automated tests against production.

Stage	Base URL	Notes
Production	https://api.esigkit.com/v1	Live customer traffic.
Staging	https://api-test.esigkit.com/v1	Pre-prod validation.
Development	https://api-dev.esigkit.com/v1	Sandbox — may break at any time.