# Worlds by Sparta

> Local, stateful API twins for testing AI agents by inspecting final world state.

## Closed beta

Apply at https://www.usesparta.co/get-started with your full name, work email, agent purpose and preferred product tier: Solo, Team, Growth or Enterprise. Applications are reviewed; setup instructions are shared after approval. The website does not grant access or display downloads after an application. The runtime supports optional aggregate usage reporting with disclosed controls; see https://www.usesparta.co/docs/reporting. Tests, customer records, prompts and evidence remain local. Compare plans and credit rates at https://www.usesparta.co/pricing. Applying does not start a paid subscription.

Published beta version: 0.9.0-beta.5.

Stripe: implemented surface with scoped real-API drift checks. Native Zendesk: local conformance coverage, live API qualification pending. Combined support and billing: implemented workflows with explicit identity bindings and inherited connector limits. Legacy ticket desk: demo grade. Newer experimental connector and browser capabilities have version-specific scope and qualification; use the release and limitations pages rather than treating every catalog entry as a delivered API.

macOS and Linux, Node 24 or newer. Unrecorded local runs remain free. Recorded results and hosted usage follow the published credit rate card. External source imports and optional model calls contact their selected providers; website signup and analytics are separate from local runtime data.

## Reference

- https://www.usesparta.co/docs: the guide: choose a dashboard or CLI workflow, understand world state and find the right reference
- https://www.usesparta.co/docs/dashboard-workflows: describe workflows, review tests, connect agents and inspect recorded results in the local dashboard
- https://www.usesparta.co/docs/dashboard-demo: present the included support workday with prepared cases, scripted agents and captured evidence
- https://www.usesparta.co/docs/connect-agent: task input, SDK endpoints, local credentials and connection diagnostics
- https://www.usesparta.co/docs/starters: editable hackathon projects, custom checks, retained worlds, agent execution and shareable evidence
- https://www.usesparta.co/docs/reporting: optional aggregate reporting, privacy controls, identity, counting and provider retention
- https://www.usesparta.co/docs/tasks: the tasks file: the `expected:` grammar, policy-only tasks, the identity map, validate / build / import
- https://www.usesparta.co/docs/scope: available connectors, implemented APIs and known limitations
- https://www.usesparta.co/docs/zendesk-native: the supported native Zendesk API and its qualification boundaries
- https://www.usesparta.co/docs/zendesk-workflows: native and combined test files, assertions, imports and CI
- https://www.usesparta.co/docs/determinism: the replay guarantee, how it is achieved, where its boundaries are
- https://www.usesparta.co/docs/scenarios: the failure-injection rule schema and the canned scenario library
- https://www.usesparta.co/docs/seed-format: the seed file format, `seed import` and `world export`
- https://www.usesparta.co/docs/deploy: running the server beyond a laptop, CI, Docker, `worlds run`, the result contract and its exit codes
- https://www.usesparta.co/docs/admin-api: every /admin/* endpoint
- https://www.usesparta.co/known-limitations: supported surfaces and qualification boundaries
- https://www.usesparta.co/fidelity: dated Stripe drift evidence and declared gaps
- https://www.usesparta.co/beta-terms: beta use terms
- https://www.usesparta.co/privacy: signup, optional reporting, website analytics and retention
- https://www.usesparta.co/support: help and private security reporting
- https://www.usesparta.co/releases: publication status and release notes