Sparta
Sparta: local Stripe and Zendesk replicas for testing AI agents
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What is Sparta?
Sparta (usesparta.co) is an agent testing platform offering 'Worlds' — sealed, replayable twins of real systems like Stripe and Zendesk that AI agents can act against. It verifies what an agent actually did by diffing system state after runs, rather than relying on transcripts, and supports injected failures, deterministic seeds, and logical clocks for time-based testing. It targets engineering teams building and evaluating AI agents.
Sparta pricing
Pricing model: Freemium
Free internal testing during beta
Sparta pros
- Grades agents by actual system state changes (refunds, credits, cancellations in dollars), not transcripts
- Injects realistic failures like rate limits, 500s, dropped webhooks, and expired keys
- Deterministic, resettable environments seeded from sample or pseudonymized data
- Logical clock lets you fast-forward time to test renewals, prorations, and cancellations
Sparta cons
- Only Stripe and Zendesk connectors are in public beta; Shopify and Salesforce not yet available
- Figures and traces in demos are scripted, illustrative examples rather than measured results
Frequently asked questions about Sparta
Which systems does Sparta support?
Stripe (payments & billing) and Zendesk (support) are in public beta; Shopify and Salesforce support can be requested but is not yet included.
Does Sparta replace eval platforms?
No — it complements them by supplying a controlled local system the agent acts on plus a record of resulting state changes, used alongside existing evaluations.
Does the agent need code changes to use a world?
No — you point the agent's stock SDK at the world, which uses the same URLs, errors, and state machine as the real system.