Developers
2d20.space is a client-only web app. There is no public API, no webhooks, no SDK, and no authentication. Everything below is documentation and machine-readable metadata.
Agent resources
- Agent Resource Discovery catalog — The canonical machine-readable index
- AI catalog — Alias of the ARD catalog
- Agent skills index — roll-task-dice, track-momentum-threat, explain-2d20-odds
- A2A agent card — Documentation surface only; no message endpoint
- Agent plugin manifest — agent-plugins.org v1.0.0
- llms.txt — Machine-readable site index
- llms.md — Cold-discovery summary for agents
- auth.md — No authentication exists — documented honestly
Source code
Open source at Mike-Demo/sta-d20 (MIT). See AGENTS.md for how AI coding agents should work with the codebase.
Versioning
This is a static snapshot, not a versioned API. There is no deprecation policy because there is nothing to deprecate. If an API is ever added, it will be documented here first.
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