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Agent delegation vs API keys: what's the difference? (People Also Ask)
API keys authenticate access; delegations grant bounded, expiring authority with sponsors—both are needed for safe agents. Auctra explains the difference.
June 11, 2026 · 8 min read · Markdown version
API keys answer who is calling
Keys and OAuth tokens prove technical identity to APIs and infrastructure. They do not encode $200 refund limits expiring Friday with named sponsor accountability.
Agents with powerful API keys but no delegations are over-powered credentials waiting for an incident. Separate infrastructure access from business authority.
Delegations answer what may happen
Auctra delegations specify action types, limits, expiration, delegator, and sponsor. evaluateAction checks delegations before side effects regardless of valid API keys.
Revoke delegations without rotating all API keys when scope changes. Audit ties each action to the delegation that applied at decision time.
Together in architecture
Use IAM and API keys to reach services; use Auctra to permit specific consequential operations. LangChain and MCP integrations follow this two-layer pattern.
Educate developers during onboarding to avoid conflating key issuance with authority grants. Include delegation requirements in PR templates for new tools.
Migration tip
Inventory high-privilege keys used by automations and register corresponding agents with sponsors. Replace standing key power with expiring delegations gradually.
Auctra ties sponsors, expiring delegations, and pre-action evaluation into one accountability chain your security and finance teams can audit.
Key takeaways
- Authority is enforced before side effects — use Delegations and evaluateAction together.
- Every production agent needs a named sponsor and bounded delegation visible in the console.
- Blocked and approval-required outcomes are evidence, not failures — review them in Delegations.
Implementation checklist
- Sign up at console.auctra.tech and open Delegations (/console/delegations).
- Register one agent with a named human sponsor accountable for its actions.
- Create a narrow delegation aligned with this article's workflow (Agent delegation vs API keys).
- Call evaluateAction from your agent or SDK before the consequential tool executes.
- Confirm sponsor, delegator, decision, and outcome appear in Audit or Delegations.
People also ask
- What is the difference between API keys and agent delegations?
- API keys authenticate access to systems; delegations define bounded, expiring business authority with human sponsors and audit.
- Should agents use API keys without delegations?
- No for consequential actions. Keys alone cannot express limits, sponsors, or pre-action evaluation.
- How does Auctra relate to API keys?
- Auctra evaluates whether an authenticated agent may perform a specific action under active delegation before execution.
Try in Auctra Console
Maps to: Delegations
Pilot paa delegation in Auctra Console
Use Delegations to apply this guide — register an agent, delegate authority, evaluate one real action, and inspect the audit trail. Free on Builder.
- Create a free account: https://console.auctra.tech/auth/signup?utm_source=blog&utm_medium=cta&utm_campaign=people-also-ask-agent-delegation-vs-api-keys
- In Delegations (https://console.auctra.tech/console/delegations), run a free Builder pilot for one production workflow.
- Issue a bounded delegation with limits and expiration matching this guide.
- Integrate evaluateAction (SDK or REST) before money, data, or infrastructure changes execute.
- Open Audit to verify sponsor, delegator, reviewer, and decision are recorded.
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