Developer platform
Build on Nigeria’s verified mailbox.
One API to deliver legally binding documents to identity-anchored recipients, sealed at the source and provable on demand.
POST /sender/tenants/{id}/contents
curl https://api.keepable.co/sender/tenants/ten_01HXP/contents \
-H "Authorization: Bearer $KEEPABLE_TOKEN" \
-H "Keepable-Version: 2026-05-29" \
-d '{
"recipient": { "identifier_type": "nin", "identifier": "012•••••91" },
"subject": "Statement of account",
"content_type": "statement",
"parts": [{ "name": "march-2026.pdf", "media_type": "application/pdf", "data": "JVBER…" }]
}'
# → 201 Created
{ "content_id": "cnt_3Fk…", "status": "delivered" }Quickstart
Send your first sealed document in under ten minutes.
Start buildingSender API
Deliver verified documents to identity-anchored recipients.
Sender referenceAgreements
Run e-signature workflows and collect a signed covenant.
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Verify delivery and seal events with signed callbacks.
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