GET YOUR FREE

The Agents API Fit Card

Map one real job onto an agents API and see if a rented harness fits.
One PDF for anyone weighing OpenAI’s Agents API or Claude Managed Agents who wants the four parts, the price lines and the data lines on one sheet instead of two sets of docs.
You don’t need to read two vendors’ docs side by side anymore.
This worksheet is built for one thing: deciding, before you write any code, whether a managed agent harness fits a job you already have.

What’s Inside:

– The Four-Part Map: Fill in the agent, environment, session and events for one real job, with a worked example to copy.
 
– The Harness Job List: Tick which of the five harness jobs your task needs, and list the five things that stay yours.
 
– Pick Your Rung: Three questions that send a job to a plain model call, an SDK in your own app, or a managed harness.
 
– The Two Vendors, Side by Side: Launch dates, sandbox options, runtime prices and data-retention lines for both, in one dated table.
 
– Before You Build: Eight checks to run before the first session starts.
 

Every page uses published data from sources like OpenAI’s and Anthropic’s own documentation and pricing pages, so you understand the strategy, not just the shortcut.

Still reading two sets of docs to answer one question?

This Is For You If:

– You have 5–20 hours a week max and need leverage, not more grind.
 
– You’re building AI workflows or internal tools and want long jobs to run without you watching every step.
 
– You want to try OpenAI’s Agents API or Claude Managed Agents, but don’t know yet which parts they handle and which stay yours.
 
– You’re tired of agent runs that stall halfway, and want a map before you spend a weekend on a build.


The problem isn’t your ideas. It’s that you don’t have a system to check whether a job fits a rented harness. This worksheet is your system.

This free resource is built for busy professionals: people who want AI systems that give hours back, around a full-time job and a family.