Use Cases

BKEY gives AI agents a biometric human-in-the-loop for every decision that matters.

1

Approve agentic actions

Add biometric human-in-the-loop approval before your agent executes high-stakes operations.

How it works:

  1. 1Agent encounters a critical action (deploy code, send email, modify production data)
  2. 2Agent sends an approval request to the user via the BKEY CLI skill
  3. 3BKEY app activates on the user’s phone with the action details
  4. 4User reviews the action and presents a live face scan to approve
  5. 5Cryptographic signature is generated and returned to the agent, which verifies it before proceeding
2

Authorize agent spend

Let agents make purchases on your behalf with biometric approval for every transaction.

How it works:

  1. 1Agent needs to make a purchase or transfer funds on the user’s behalf
  2. 2Agent initiates a payment request specifying the amount, recipient, and currency
  3. 3BKEY app shows the exact transaction details for the user to review
  4. 4User approves the specific amount with a live face scan — no blanket spending permissions
  5. 5BKEY signs the transaction with stablecoin wallet keys or authorizes the credit card charge
3

Approve agent access to sensitive data

Gate access to your encrypted vault — agents can request specific items, but only you can unlock them.

How it works:

  1. 1Agent needs access to a credential, API key, or sensitive document stored in the user’s BKEY vault
  2. 2Agent sends an access request specifying the vault item and purpose
  3. 3BKEY app displays the request with the item name and requesting agent’s identity
  4. 4User approves with a live face scan, which derives the decryption key
  5. 5Vault item is decrypted on-device and delivered to the agent over an end-to-end encrypted channel
4

Authorize agent spend with X.402

Summer 2026

Enable machine-to-machine payments using the X.402 protocol with biometric authorization.

How it works:

  1. 1Agent encounters an X.402 payment-required response from an API or service
  2. 2Agent parses the payment terms and routes the authorization request to BKEY
  3. 3BKEY app shows the payment amount, recipient, and service being accessed
  4. 4User approves the payment with a live face scan
  5. 5BKEY signs the stablecoin transaction and the agent completes the X.402 handshake