Create submission
Send a template to one or more submitters for signing.
Quick Sign Mode: Set quick_sign_mode to enable streamlined signing flows.
When using confirmation_modal, signers see a summary of pre-filled data and can
confirm with a single click. Use review_and_sign to show a summary on the welcome
screen.
Default behavior: If omitted, quick_sign_mode defaults to confirmation_modal.
prefill_behavior defaults to:
skip_if_prefilled: trueeditable_if_prefilled: falseSetquick_sign_mode: normalto force legacy behavior.
Auto-Generated Signatures: When quick_sign_mode is not normal and a submitter
has a name, any unfilled signature fields will be automatically populated with a
typed signature image generated from the submitter’s name.
Cover Page: Pass a cover_page object to generate a branded PDF cover page
prepended as page 0 of the signing package. The cover page is generated per submission
with dynamic financial data (amounts, phases, company name). All monetary values are
integers in whole dollars. Admin fees must be negative.
Start Screen Customization: Use template preferences to customize the signing
welcome screen: disable_start_screen (skip directly to signing),
start_screen_title, and start_screen_message.
Documentation Index
Fetch the complete documentation index at: https://docs.spitshake.io/llms.txt
Use this file to discover all available pages before exploring further.
Authorizations
API token generated at Settings > API
Headers
Prevents duplicate submissions on retry. Same key + same body replays the original response.
255Body
Send invitation emails to submitters
Send SMS invitations instead of email
preserved, random Submission-level quick-sign mode. Set to normal to force legacy behavior.
normal, review_and_sign, auto_scroll_signature, confirmation_modal Submission-level prefill behavior. Defaults to skip prefilled fields and make them read-only.
Generate a dynamic cover page and prepend it as page 0 of the signing package. The cover page is rendered per submission with the provided financial data. All monetary values are integers in whole dollars (no cents). Admin fees must be negative.
Response
Created submission with submitters