AgentSecrets vs Infisical
Infisical is an open-source secrets management platform that has evolved rapidly. In April 2026, Infisical launched Agent Vault, a TLS-intercepting forward proxy that prevents AI agents from seeing raw credentials — aligning with the architectural approach AgentSecrets pioneered.
Honest Assessment
Infisical now offers two delivery mechanisms:
infisical run --(traditional): Injects secrets as environment variables. The agent process sees plaintext credentials inos.environ.- Agent Vault (April 2026): A Go-based forward proxy that injects credentials at the transport layer. The agent never receives the raw secret value — similar to how AgentSecrets works.
This convergence validates AgentSecrets' core thesis: credential brokering, not credential delivery, is the right model for AI agents.
Where AgentSecrets Still Differs
Despite the architectural convergence, four structural differences remain:
1Identity-Bound Credential Access
Agent Vault is an unauthenticated proxy — any process that can route traffic through it has access to all configured credentials. AgentSecrets binds every credential request to a cryptographic agent identity (Issued tokens, prefixed agt_). Audit logs show which specific agent used which credential, and policies can grant or deny access per agent.
2Secret Constraints (Domain & Method Locking)
AgentSecrets supports per-secret constraints that restrict where and how a credential can be used. A STRIPE_KEY can be locked to api.stripe.com with GET and POST only. If an agent tries to send it elsewhere, the proxy blocks the request — before any credential is injected. Agent Vault requires manual configuration per-service-endpoint without per-secret domain enforcement.
3Process-Level Anti-Impersonation ()
AgentSecrets' keychain-auth daemon cryptographically verifies the calling binary's SHA-256 hash before releasing any credential. A rogue script or modified CLI binary is denied at the IPC handshake level. Agent Vault does not perform binary-level identity verification.
4Production Maturity & Deployment Model
Agent Vault is a research preview (v0.39, API subject to change). AgentSecrets is a production credential infrastructure with OS keychain storage, read-through policy caching, team sync, and environment isolation built in.
Summary
| Dimension | Infisical + Agent Vault | AgentSecrets |
|---|---|---|
| Credential brokering | Yes (via Agent Vault) | Yes (via proxy + call env) |
| Agent identity binding | None (proxy-wide) | Cryptographic tokens (agt_) |
| Per-secret domain constraints | Manual endpoint config | Built-in (secrets policy set) |
| Process binary verification | None | keychain-auth daemon (SHA-256) |
| Storage | Infisical cloud | OS keychain (local-first) |
| Maturity | Agent Vault: v0.39, research preview | Production |