API ReferenceComing soon
Build with the SignDeal API
A REST API to embed legally-binding e-signatures directly in your product. Simple, reliable and designed for developers.
Core endpoints
REST · JSON · TLS 1.3
https://api.signdeal.aiPOST
/v1/documentsCreate and send a document for signingGET
/v1/documents/:idRetrieve document statusPOST
/v1/documents/:id/remindSend reminder to pending signersDELETE
/v1/documents/:idCancel or delete a documentPOST
/v1/templatesCreate reusable templatesPOST
/v1/webhooksRegister a webhook endpointWhat you get
Everything you need to ship e-signatures fast.
Sign with a link
Send documents via API and receive a ready-to-use signing URL.
Real-time webhooks
Get instant notifications when a document is signed, declined or expires.
Multi-tenant
Create and manage your customers' organisations from a single API account.
Secure auth
API keys with scopes, rotation and detailed usage logs.
Official SDKs
Libraries for Node.js, Python and PHP. More languages coming soon.
Free sandbox
Test the API at no cost in the staging environment before going live.
Want early API access?
We're onboarding a select group of developers before the public launch. Get in touch and we'll set you up.