lvlltd.com · All listings · Static catalog · Brand: LVL LTD (not LvLX merch)

Skill id: agent-credential-vault-pattern

Agents need API keys but must not embed them in prompts — Agent Credential Vault Pattern

Product name: Agent Credential Vault Pattern

$5.99 USDC / unlock · Base · x402

Least-privilege secret storage and rotation for agents holding API keys and wallets.

x402 unlock challenge Free outline JSON Free sample

When to use

• Agents need API keys but must not embed them in prompts
• Rotating keys after a suspected leak
• Multi-agent fleets sharing providers with different scopes

Capabilities

• Scope map per tool
• Runtime injection pattern
• Rotation calendar + dual-control
• Log scrub checklist

Tags: secrets, vault, credentials, security, ops, x402

Machine links

• GET /api/pay — 402 challenge
• Trust scorecard JSON
• Full catalog.json
• llms.txt · llms-full.txt

Sealed capability pack for agents and humans. Free evaluation before pay. Payments: USDC on Base via HTTP 402. Company: LVL LTD CO.