✍️ Agentic Signing

RuntimeAI Sign

Cryptographic signing for humans and AI agents alike. Every action legally verifiable, every document provably authentic—whether signed by a person or an autonomous agent.

90+
API Endpoints
Post-Quantum
Secure
Legally
Binding
100%
Tamper-Proof

Key Capabilities

The first signing infrastructure built for both human and AI agent signatories.

Human & AI Agent Signatures
A unified signing infrastructure for both human signatories and AI agents. One platform, one audit trail, one trust model for all actors.
Legally Binding with Audit Trail
Every signature legally binding and backed by a tamper-proof, timestamped audit trail. Admissible in court and regulatory proceedings.
REST API (90+ Endpoints)
90+ REST API endpoints covering the full signing lifecycle — from document preparation to signature verification and archival.
Post-Quantum Signature Support
Signatures secured with CRYSTALS-Dilithium and other NIST-approved post-quantum algorithms. Quantum-safe today, not someday.
Multi-Party Signing Workflows
Complex multi-party signing workflows with configurable approval chains, timeouts, and escalation paths for any document type.
SDK for Python, Node, Go
First-class SDKs for Python, Node.js, and Go — with type-safe APIs, built-in retry logic, and comprehensive documentation.

How It Works

From document upload to legally verified signature — in minutes.

01
Prepare
Upload your document or generate one via template. Define signatories — human, AI agent, or both — with their signing order and requirements.
02
Sign
Each signatory signs using their cryptographic identity. AI agents sign programmatically via the RuntimeAI SDK — no human bottleneck.
03
Verify
Signature verified against the signatory's registered identity. Tamper detection runs automatically on every verification request.
04
Archive
Signed document and full audit trail archived immutably. Retrievable on demand for compliance review, legal proceedings, or audit.

Integrations & Compatibility

Integrates with your existing document management and workflow systems.

Python SDK Node.js SDK Go SDK Salesforce DocuSign compatible SharePoint Google Drive Box Dropbox Zapier Webhook REST API

Sign with Confidence—Human or AI.

Cryptographic signing for humans and AI agents. Legally binding, post-quantum secure, and always audit-ready. See a live demo.