Self Labs launches Agent Vault to keep credentials hidden from AI agents
Overview
Self Labs launches Agent Vault, a proxy that lets AI agents log in to websites and pay by card without holding the real passwords or card numbers.
Santiago (@svpino) says Codex connects to the vault over MCP and uses placeholder credentials, and that the proxy swaps in the real credentials when Codex attempts a login, so Codex never sees the password.
Rohan Paul (@rohanpaul_ai) describes Agent Vault as a hosted browser proxy that works with Claude Code, Codex and Grok Bot. He says the proxy types the real card number or password into the site only at the moment of the fill. The company says that a prompt-injected agent can spend at most within the caps the user sets.
Both reports rely on the Self Labs launch announcement, quoted on X. Neither reports pricing, availability or independent testing.
Written by AI from the articles below · updated Oct 15, 2:26 PM ET
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Article timeline
The articles in this story. Times are ET.
Rohan Paul@rohanpaul_aiXSelf Labs launches Agent Vault to keep agent credentials out of reachAISelf Labs launches Agent Vault, a hosted browser proxy that lets agents such as Claude Code, Codex and Grok Bot sign in and check out using placeholder tokens. The proxy enters the real card number or password into the site only at the moment of the fill, so the agent never holds a credential. The company says a prompt-injected agent can then spend at most within the caps the user sets.

Santiago@svpinoXAgent Vault lets agents log in without seeing real credentialsAISelf Labs launches Agent Vault, which lets agents use credentials without exposing them to the model. Santiago says Codex can connect to the vault over MCP and use placeholder credentials to log in to a website. Agent Vault's proxy swaps in the real credentials at login, so Codex never sees the password.

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