From draft to signed,
in one API call.
Ecylaa turns documents into something you can ship. Generate PDFs from templates, collect legally binding signatures, and track every envelope — all through a clean, predictable API.
No credit card required.
Master Services Agreement
Signature
Recipients
R. Lefoyer
Signer · signed
Acme Ltd
Counterparty · signed
template_id: tpl_msa
status: completed
The whole paperwork lifecycle, as endpoints.
Everything teams need to create, sign, and archive documents — wired together behind one API and one dashboard.
Generate documents by API
Turn templates with merge fields into pixel-perfect PDFs in one request. Version them, localise them, and render thousands without touching a layout tool.
Legally binding e-signatures
Collect signatures that hold up under eIDAS and the ESIGN Act. Order signers, send reminders, and capture intent — on web or embedded in your own product.
Routing & workflows
Define signing order, conditional steps, and automatic reminders. Ecylaa drives each envelope from draft to completion and tells you the moment it's done.
Tamper-evident audit trail
Every view, signature, and field change is recorded and sealed into a certificate of completion you can hand to a court, an auditor, or a customer.
One endpoint, the whole flow.
Send a template id and a recipient and Ecylaa renders the PDF, emails the signer, and starts tracking. No PDF library, no SMTP, no signature law to read.
- Idempotent requests with clear, typed errors
- Webhooks for sent · viewed · completed
- Signed PDF and certificate returned automatically
curl https://api.ecylaa-pro.com/v1/envelopes \
-H "Authorization: Bearer $ECYLAA_KEY" \
-d template_id=tpl_msa \
-d "recipients[0][email]=robin@acme.com"
# → { "id": "env_8fa3", "status": "sent" }Three calls from blank page to binding contract.
Create a template
Upload a document, drop in merge fields and signature anchors, and save it as a reusable template — once.
Send an envelope
POST the template id and your recipients. Ecylaa renders the PDF, emails the signers, and starts the workflow.
Get it back signed
Listen on a webhook. When the last signer is done, you receive the signed PDF and a sealed audit certificate.
14-day
free trial, no card required
6+
official SDKs for your stack
1 call
from template to signed PDF
100%
of envelopes in the audit trail
The right level of proof for every document.
From a quick approval to a cross-border contract, choose the signature standard the moment demands — all through the same API.
Simple e-signature
Click-to-sign with captured intent and a full audit trail.
Best for: Everyday agreements, NDAs, approvals.
Advanced e-signature
Uniquely linked to the signer with tamper detection built in.
Best for: HR, finance, higher-value contracts.
Qualified e-signature
eIDAS-qualified with verified identity — equal to a wet signature.
Best for: Regulated and cross-border deals.
Wherever a signature is in the way.
If your product or process ends in a PDF that someone has to sign, Ecylaa removes the manual step between them.
Sales & procurement
Send order forms and MSAs that close themselves — no copy-paste, no chasing.
HR & onboarding
Offer letters, policies, and NDAs generated per hire and signed on day one.
Fintech & regulated
KYC packs and agreements with ID verification and a defensible audit trail.
Make paperwork programmable.
Start a 14-day free trial. Send your first envelope today and never chase a signature by email again.
No credit card required.