SSL for AI Agents
AIGP-Σ is the open protocol for certifying AI agents — post-quantum identity, cryptographic scope enforcement, and a public registry anyone can verify.
ML-DSA
Post-Quantum Signatures
< 1s
Certificate Issuance
99.9%
Registry Uptime
Open
Public Protocol
What is AIGP-Σ?
AIGP-Σ (AI Governance Protocol — Sigma) is a universal cryptographic protocol for autonomous agent governance. It defines how AI agents prove identity, declare authorized scope, and remain verifiable throughout their lifecycle — built on NIST post-quantum standards (ML-DSA, SHA3-512) with RISC Zero zero-knowledge proofs.
AIGP-Σ = The Protocol
Issues, registers, and standardizes. Open standard layer.
AIGodfather = The Platform
Monitoring, kill switches, compliance. Built on AIGP-Σ.
The Protocol — 5 Whitepaper Pillars
Protocol Specification
Core cryptographic protocol built on NIST post-quantum standards (ML-DSA-65, SHA3-512) with RISC Zero zero-knowledge proofs. Four-layer architecture: Authority, Action Chain, IoT Delegation, Audit.
The Kill Switch
Cryptographic agent revocation with four HALT levels: Soft HALT, Hard HALT (k-of-n threshold), Fleet HALT, and Emergency HALT (≤1s propagation). Post-quantum signed, publicly verifiable.
Certificate Authority
SSL/TLS for AI agents. Every credential is ML-DSA signed, listed in a public append-only registry with optional Bitcoin anchoring — structurally equivalent to Certificate Transparency logs.
Agentic Payments
The missing identity layer for autonomous payments. Works with x402 (Coinbase), Mastercard Agent Pay, and Stripe Agentic — certifying which agent is paying and whether it’s authorized.
Multi-Agent Trust Chains
Cryptographic delegation with scope subset enforcement. Orchestrator → sub-agent hierarchies, HALT cascade propagation, cross-organization trust — no shadow delegations possible.
Cryptographic Foundation
NIST FIPS 204 — post-quantum signatures (Category 3)
NIST FIPS 202 — hash chains, Merkle roots
Zero-knowledge proofs for authority verification
OP_RETURN timestamps — immutable proof of issuance
Industry Use Cases
AIGP-Σ is industry-agnostic. Only three parameters vary per deployment: Godfather authority structure (k-of-n), action criticality levels, and checkpoint frequency.
AI Governance
Agent action logging, scope enforcement, tamper-evident audit trail
Healthcare
Diagnostic agent certification, emergency halt for misdiagnosis
Finance & Payments
Trading bot identity, payment scope limits, x402/Stripe integration
Supply Chain
Logistics agent verification, cross-org trust between partners
Voting Systems
Election agent certification with 4-of-7 governance threshold
DAO Governance
On-chain governance agent trust, fleet halt for systemic issues
Legal & Contracts
Contract execution agent audit, immutable action chain evidence
IoT & Edge
Gateway-delegated HMAC signing for resource-constrained devices (~512B RAM)
What an AIGP-Σ certificate provides
Every certificate is an ML-DSA signed credential listed in the public registry. Here’s what you get when you certify your agent.
Certificate Issuance
Post-quantum ML-DSA certificates that prove agent identity, authorized scope, and model integrity.
Public Registry
Append-only public registry. Anyone can verify any agent’s status, scope, and revocation history.
Scope Enforcement
Every certificate cryptographically encodes what an agent is allowed to do. No overrides possible.
Reseller & Business API
White-label API for organizations and resellers. Issue certificates at scale under your own brand.
Need a Kill Switch?
That’s AIGodfather.
AIGodfather is the production platform built on AIGP-Σ. It adds real-time agent monitoring, behavior anomaly detection, human-in-the-loop approvals, and a cryptographic kill switch — all powered by AIGP-Σ certificates.
Every AIGodfather subscription includes a free AIGP-Σ certificate. Monitor hundreds of agents across fintech, healthcare, and e-commerce — with full EU AI Act compliance built in.
Visit AIGodfatherEmergency Kill Switch
Cryptographic HALT. Stop any agent in <1s, post-quantum signed.
Free Certificate Included
Every AIGodfather plan includes a free AIGP-Σ certificate.
Real-time Monitoring
Every agent action logged, classified by AI, risk-scored live.
Human-in-the-Loop
Require human approval before critical agent actions execute.
EU AI Act Compliance
Built-in compliance wizard, readiness scoring, regulatory export.
Security Scanning
OWASP LLM Top 10: prompt injection, tool abuse, memory poisoning.
Three steps to certified AI
Go from zero to verified in minutes, not weeks.
Register Your Agent
Sign up, define your agent’s identity, scope, and authorized actions.
Get Certified
Receive a post-quantum ML-DSA certificate listed in the public registry.
Go Live
Display your verified badge. Anyone can verify your agent instantly.
The Missing Layer
Why AIGP-Σ?
AI agents are autonomous. They hold keys, execute transactions, communicate with other agents — often with no human in the loop. Yet no existing standard was built to identify, authorize, or revoke them.
What exists today — and where it falls short
| Standard | What it does | What's missing for AI agents |
|---|---|---|
| X.509 / TLS | Server & human identity via PKI | No agent scope, no behavioral binding, no PQC |
| SPIFFE / SPIRE | Short-lived workload certificates | No AI-specific semantics, no PQC by default |
| W3C DID / VC | Decentralized self-sovereign identity | No behavioral fingerprint, no PQC |
| ISO/IEC 42001 | AI management system governance | Framework only — no machine-readable certificate |
| Hybrid PQC X.509 | X.509 + post-quantum algorithms | No agent-specific extensions, still experimental |
Every one of these solves part of the problem. None of them solves all of it.
What AIGP-Σ adds
AIGP-Σ is not a replacement for X.509. It is a new layer built above it — the same way TLS is a layer above TCP.
Post-Quantum Cryptography by Default
ML-DSA (NIST FIPS 204) for digital signatures. ML-KEM (NIST FIPS 203) planned for agent-to-agent key encapsulation. Both NIST standards finalized August 2024. Classic RSA and ECDSA are broken by a sufficiently powerful quantum computer. AIGP-Σ is not.
Agent-Specific Semantic Extensions
Permission scope, EU AI Act risk classification, and behavioral fingerprint — embedded directly in the certificate. Not in a separate config file. Not in a database. In the certificate itself, cryptographically bound.
Built-in Kill Switch (HALT Protocol)
Every AIGP-Σ certificate contains a revocation endpoint. Four escalating HALT levels: Soft → Hard (k-of-n) → Fleet → Emergency. Any agent, any deployment, revoked instantly.
W3C DID Compatibility
Each certificate maps to a Decentralized Identifier (DID), enabling interoperability with Google A2A Protocol and emerging agent identity ecosystems.
Why it matters now
The EU AI Act is in force. High-risk AI systems require documented accountability chains. Autonomous agents need verifiable, auditable identities — not just API keys and JWTs. AIGP-Σ is the cryptographic infrastructure for that world.
Open Research
Verifiable priority — timestamped on Zenodo
AIGP-Σ was first publicly disclosed on Zenodo with a permanent DOI, establishing an open-access, timestamped research record.
DOI: 10.5281/zenodo.19384051
Ready to certify your AI?
Join the first generation of certified AI agents. Get your AIGP-Σ certificate in minutes.
SSL for AI Agents
Per agent, per year — just like SSL certificates. Bitcoin anchoring included.
Free
For individual developers and solo agents. Start building trust immediately.
- Agent identity certificate
- Public registry badge
- 1 year TTL
Business
For organizations, fleets, and enterprise. Verified identity for all your agents.
- Agent identity certificate
- Organization identity verified
- Unlimited agents under one organization
- Public registry badge — Verified
Frequently Asked Questions
Everything you need to know about AI agent certificates.