The cryptographic firewall for AI agents. Every autonomous action is signed, verified, authorized, and monitored with enforced permissions and comprehensive audit trails.
Every payload must be SHA-256 hashed and signed with the agent's private key for complete verification.
Granular control over agent send/receive permissions with instant ON/OFF toggle capabilities.
Prevents replay attacks with unique nonce verification and 24-hour TTL storage.
Track time saved and dollar value generated by each agent with detailed analytics.
Simple $0.01 per verification with transparent usage tracking and real-time balance updates.
Complete logging of all agent interactions with CSV export and expandable log details.
A2SPA addresses the critical "Payload Trust Gap" - where all upstream security layers assume incoming payloads are legitimate without verification.
The A2SPA Control Layer sits at the execution boundary, providing cryptographic verification before any agent action is executed. This ensures Authenticity, Authorization, Non-repudiation, Integrity, Identity Binding, and Version Control.
Without A2SPA, orchestration layers, tool schemas, sandboxing, permissions, guardrails, and logging all operate on the assumption that payloads are legitimate - creating the vulnerability that enables every agent exploit.
A2SPA operates as Layer 5 - the critical Trust Layer that every AI agent framework needs
Every AI agent framework today runs unauthenticated by default. A2SPA is the first to fix that. A2SPA (Agent-to-Secure Payload Authorization) provides the missing cryptographic security layer that ensures every autonomous action is verified, authorized, and auditable.
| Security Feature | A2SPA | MCP | A2A | ACP | ANP | LangChain | AWS Bedrock |
|---|---|---|---|---|---|---|---|
| Payload Signing | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Nonce/Replay Protection | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Permission Mapping | ✅ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ |
| Audit Logging | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| ROI Tracking | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Zero-Trust Ready | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |