Integrate Electronic Signatures into Your Stack
Send envelopes, track signatures, receive webhooks. Simple REST API, OpenAPI 3.0, curl/Node/Python examples — everything to plug Certyneo into your HRIS, CRM, or business software in hours.
Quick Start
Three steps: create an API key from settings, encode your PDF in base64, send. The response contains the `signUrl` that you can share directly with the recipient.
# 1. Upload the PDF (multipart) and capture the returned document id.
DOC_ID=$(curl -s -X POST https://certyneo.com/api/v1/documents \
-H "Authorization: Bearer sk_live_xxxxxxxxxxxxxxxxxxxxxxxx" \
-F "file=@contrat.pdf" | jq -r .id)
# 2. Create a DRAFT envelope referencing the uploaded document.
ENV_ID=$(curl -s -X POST https://certyneo.com/api/v1/envelopes \
-H "Authorization: Bearer sk_live_xxxxxxxxxxxxxxxxxxxxxxxx" \
-H "Content-Type: application/json" \
-d "{
\"subject\": \"Contrat de prestation\",
\"documentIds\": [\"$DOC_ID\"],
\"recipients\": [
{ \"email\": \"client@example.com\", \"name\": \"Marie Dubois\", \"role\": \"SIGNER\" }
]
}" | jq -r .id)
# 3. Dispatch the envelope — this sends the invitation email/SMS.
curl -X POST https://certyneo.com/api/v1/envelopes/$ENV_ID/send \
-H "Authorization: Bearer sk_live_xxxxxxxxxxxxxxxxxxxxxxxx"// npm install @certyneo/sdk (or call fetch directly)
const auth = { Authorization: `Bearer ${process.env.CERTYNEO_API_KEY}` };
// 1. Upload the PDF (multipart).
const fd = new FormData();
fd.append("file", new Blob([pdfBuffer], { type: "application/pdf" }), "contrat.pdf");
const doc = await fetch("https://certyneo.com/api/v1/documents", {
method: "POST", headers: auth, body: fd,
}).then((r) => r.json());
// 2. Create the DRAFT envelope.
const envelope = await fetch("https://certyneo.com/api/v1/envelopes", {
method: "POST",
headers: { ...auth, "Content-Type": "application/json" },
body: JSON.stringify({
subject: "Contrat de prestation",
documentIds: [doc.id],
recipients: [
{ email: "client@example.com", name: "Marie Dubois", role: "SIGNER" },
],
}),
}).then((r) => r.json());
// 3. Dispatch — this triggers the invitation channel for every recipient.
await fetch(`https://certyneo.com/api/v1/envelopes/${envelope.id}/send`, {
method: "POST", headers: auth,
});
console.log(envelope.id);import os, requests
auth = {"Authorization": f"Bearer {os.environ['CERTYNEO_API_KEY']}"}
# 1. Upload the PDF (multipart).
with open("contrat.pdf", "rb") as f:
doc = requests.post(
"https://certyneo.com/api/v1/documents",
headers=auth,
files={"file": ("contrat.pdf", f, "application/pdf")},
).json()
# 2. Create the DRAFT envelope.
envelope = requests.post(
"https://certyneo.com/api/v1/envelopes",
headers={**auth, "Content-Type": "application/json"},
json={
"subject": "Contrat de prestation",
"documentIds": [doc["id"]],
"recipients": [
{"email": "client@example.com", "name": "Marie Dubois", "role": "SIGNER"},
],
},
).json()
# 3. Dispatch — this triggers the invitation channel for every recipient.
requests.post(
f"https://certyneo.com/api/v1/envelopes/{envelope['id']}/send",
headers=auth,
)
print(envelope["id"])Envelopes
Create, send, track status, cancel. An envelope can contain multiple documents and multiple signers (parallel or sequential).
The Commission shall adopt implementing acts laying down the rules for the application of this Regulation.
Receive `envelope.created`, `envelope.completed`, `envelope.declined` to your chosen URL. HMAC SHA-256 on every payload to verify origin.
Simple Authentication
Bearer token. One key per environment (test / prod). Instantly revocable. Limit 100 req/min/key, burst up to 200, clean 429 with Retry-After header.
Available Endpoints
12 routes covering the full cycle: envelopes, documents, webhooks, API keys. All routes accept a Bearer token and return JSON.
| Method | Path | Description |
|---|---|---|
| POST | /api/v1/documents | Upload a PDF (multipart) — returns document id |
| GET | /api/v1/documents | List documents |
| GET | /api/v1/documents/{id} | Fetch document metadata |
| DELETE | /api/v1/documents/{id} | Delete document |
| GET | /api/v1/envelopes | List envelopes |
| POST | /api/v1/envelopes | Create envelope (status: DRAFT) |
| GET | /api/v1/envelopes/{id} | Fetch envelope state |
| PATCH | /api/v1/envelopes/{id} | Update DRAFT envelope |
| DELETE | /api/v1/envelopes/{id} | Void / delete DRAFT envelope |
| POST | /api/v1/envelopes/{id}/send | Dispatch DRAFT — sends invitations |
| GET | /api/v1/envelopes/{id}/audit-trail | Download eIDAS audit-trail PDF |
| GET | /api/v1/envelopes/{id}/signed-document | Download signed PDF (once COMPLETED) |
| GET | /api/v1/webhooks | List webhooks |
| POST | /api/v1/webhooks | Register webhook |
| DELETE | /api/v1/webhooks/{id} | Unregister |
| GET | /api/v1/keys | List API keys |
| POST | /api/v1/keys | Create API key |
| DELETE | /api/v1/keys/{id} | Revoke key |
Rate Limits
Limits ensure stable service quality for all customers. If you need more, contact us.
- • 100 requests per minute per API key
- • Burst tolerated up to 200 requests in less than 10 seconds
- • 429 response with Retry-After header indicating the delay in seconds