# One Move

> One Move finds the one weakness costing a chess or poker player most against players one rating Band above them, gives them a Target from that Band, and sends a Review every Monday until it is fixed. Public, anonymous API and two MCP servers.

## When to use this

Use One Move when a user asks you to find a recurring chess or poker weakness, turn a chess.com or Lichess username into a measured improvement target, compare their numbers with players one Band above, or analyse `.txt` PokerStars cash-game hand histories. Do not use it for live coaching, a single-position engine analysis, tournaments, or human coaching.

Best-fit calls:

- `GET https://api.getonemove.app/v1/free-reports/chesscom/{username}` for a public chess report.
- `GET https://api.getonemove.app/v1/free-reports/lichess/{username}`.
- Upload PokerStars files through https://getonemove.app/poker (browser form; files are deleted after parsing).
- `GET https://api.getonemove.app/v1/constraints` for the catalog and Targets.
- MCP tool `get_free_report` at https://api.getonemove.app/mcp.

## Start

- [Product overview](https://getonemove.app/index.md)
- [REST API](https://getonemove.app/docs/api) and [OpenAPI](https://api.getonemove.app/openapi.json)
- [MCP servers](https://getonemove.app/docs/mcp)
- [NLWeb /ask](https://api.getonemove.app/ask)
- [Authentication walkthrough](https://getonemove.app/auth.md)
- [Developer portal](https://getonemove.app/developers)
- [Pricing](https://getonemove.app/pricing) and [pricing.md](https://getonemove.app/pricing.md)
- [Agent instructions](https://getonemove.app/agents.md)
- [Sandbox](https://getonemove.app/sandbox)
- [About](https://getonemove.app/about)

## Constraints

- [Conversion from +2](https://getonemove.app/constraints/conversion-from-plus-2): share of games reaching +2.00 that you won. Higher is better.
- [Blunders on fast moves when winning](https://getonemove.app/constraints/fast-blunders-when-winning): share of moves played in 10 s or less at +2.00 or better that were blunders. Lower is better.
- [Blunders with under 60 s left](https://getonemove.app/constraints/time-trouble-blunders): share of moves with under 60 s on your clock that were blunders. Lower is better.
- [Blunders in moves 1-10](https://getonemove.app/constraints/opening-blunders): share of your moves 1-10 that were blunders. Lower is better.
- [Endgame blunders](https://getonemove.app/constraints/endgame-blunders): share of moves leaving 6 or fewer pieces on the board that were blunders. Lower is better.

## Discover

- [llms.txt](https://getonemove.app/llms.txt)
- [llms-full.txt](https://getonemove.app/llms-full.txt)
- [ARD catalog](https://getonemove.app/.well-known/ard.json)
- [AI Catalog](https://getonemove.app/.well-known/ai-catalog.json)
- [A2A agent card](https://getonemove.app/.well-known/agent-card.json)
- [Agent Skills index](https://getonemove.app/.well-known/agent-skills/index.json)
- [API catalog, RFC 9727](https://getonemove.app/.well-known/api-catalog)
- [OAuth protected resource](https://api.getonemove.app/.well-known/oauth-protected-resource)
- [OAuth authorization server](https://api.getonemove.app/.well-known/oauth-authorization-server)
- [MCP product server card](https://api.getonemove.app/mcp/server-card)
- [MCP documentation server card](https://api.getonemove.app/docs/mcp/server-card)
- [Sitemap](https://getonemove.app/sitemap.xml)
- [GitHub agent resources and AGENTS.md](https://github.com/chrissuperduper/one-move-agent)
- [One Move skills on skills.sh](https://www.skills.sh/chrissuperduper/one-move-agent)

## Section indexes

- [API section](https://getonemove.app/docs/llms.txt)
- [About section](https://getonemove.app/about/llms.txt)
- [Pricing section](https://getonemove.app/pricing/llms.txt)
- [Legal section](https://getonemove.app/privacy/llms.txt)