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Atlas E-Signature API
REST API for creating, reviewing, sending, and tracking e-signature envelopes from PDF or DOCX with field detection, webhooks, and audit trail.
What is Atlas E-Signature API?
REST API for creating, reviewing, sending, and tracking e-signature envelopes from PDF or DOCX with field detection, webhooks, and audit trail.
Product typeContract Review & CLM
Pricing$1 per envelope sent after 5 free envelopes · Free, Usage Based
Deployment
APIAvailable
What teams use Atlas E-Signature API for
Sending contracts for human e-signature from AI agents or chat
Embedding e-signature into SaaS products via platform API
White-label signing workflows for agencies
Marketplace e-signature with per-seller billing
Integrations and access
Platforms, integrations, and language support vary by plan and region. Confirm final requirements with the vendor.
Platforms
IntegrationsAPI and webhooks
Languages
Support
What reviewers say
Community reviewsReviews are owned and editable by their authors.
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Enterprise readiness
Compliance claims are normalized from current vendor documentation and independently reviewed by SOTA2.
HIPAA
AES-256 encryption at rest
TLS 1.2+ encryption in transit
HMAC-SHA256 webhook signatures
SHA-256 document hashing
Cryptographic audit trail
Multi-signer per-party tokens
Service-role database access restriction
Turnstile abuse prevention at signup
Rate limits on sensitive endpoints
Data retention:
Benchmarks and comparisons
Independent benchmarksStructured task results are being verified.
Side-by-side comparisonsComparison workspaces will be available in a later release.
