Youyou.com
You's API program is performing exceptionally well across all evaluated dimensions — partner-facing documentation, contract quality, and agent readiness are all at the highest level. With no failing signals detected, the program is in a strong position to delight partners and support AI-agent integrations out of the box.
API DesignA clean, typed, well-governed API contract agents can reason about4 pass1 warn0 fail98A+
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Machine-readable, versioned contractvia spec | 25/25 | The API declares version "1.0.0" and uses url-based versioning, so an agent can pin to a stable contract. Investigated: spec 100%, docs 100%. | A current OpenAPI version with a declared versioning scheme lets agents reason about the contract. |
| pass | Auth declared & discoverablevia spec | 25/25 | Authentication is required across the API (declared globally or on every operation), so an agent knows credentials are needed. Investigated: spec 100%, docs 100%, mcp 100%. | Agents can only call an API when they can determine its auth posture — a declared scheme, or an explicit statement that none is required. |
| warn | Schema coverage & depthvia sdk | 22.7/25 | 7 of 151 public signatures use loose types (anyTypeRatio=0.046). Investigated: sdk 91%, spec 87%. Fix: Replace any/unknown/object/dict/**kwargs in public params and return types with named or primitive types. | Typed, complete request/response schemas are what make agent function-calling possible. |
| pass | Security & governance hygienevia spec | 15/15 | No credential-shaped strings detected in spec. Investigated: spec 100%, sdk 100%, wellknown 50%. | No leaked secrets, no critical lint violations, no OWASP API Top-10 spec smells, and a published vulnerability-disclosure channel. |
| pass | Example coveragevia docs | 10/10 | Docs show code samples in 5 language(s) (top: shell, python, typescript), and 8 of 20 sampled pages offer ≥ 2 languages side by side. Investigated: docs 100%, sdk 100%, spec 0%. | Examples carry shape semantics schemas under-specify — for humans and agents alike. |
Developer ExperienceThe context both developers and agents need to integrate fast — onboarding, code samples, complete descriptions and worked examples5 pass0 warn0 fail100A+
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Self-service developer portalvia docs | 29/29 | Signup page at https://you.com/signin?redirectUrl=%2Fplatform (client-rendered, so its contents couldn't be classified); free tier or sandbox is documented in pricing/docs. Investigated: docs 100%. | A first call without a human in the loop — self-serve credentials, a free tier, or an API that needs none. |
| pass | Quickstart presentvia docs | 25/25 | Quickstart at https://you.com/docs/quickstart includes a runnable first-call code sample. Investigated: docs 100%. | A quickstart is the fastest path from landing page to first successful call. |
| pass | Code samples in docsvia docs | 18/18 | Docs show code samples in 5 language(s) (top: shell, python, typescript), and 8 of 20 sampled pages offer ≥ 2 languages side by side. Investigated: docs 100%. | Multi-language samples shorten time-to-first-call. |
| pass | Description completenessvia spec | 15/15 | 100% of operations and parameters carry substantive descriptions (1 of 1 ops, 0 of 0 params), the main semantic cue an agent relies on. Investigated: spec 100%, sdk 40%. | Complete descriptions are the context humans and agents need to use endpoints. |
| pass | Changelog publishedvia spec | 13/13 | changelog is documented on the docs site at https://you.com/docs/changelog, even though it isn't declared in the API spec. Investigated: spec 100%, docs 100%. | A published changelog lets partners track changes without surprise. |
Agent DiscoveryPartners and their agents can find your APIs — llms.txt, registries, crawlable and reachable docs2 pass2 warn0 fail97A+
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Docs reachable, not hard auth-gatedvia docs | 30/30 | All 50 sampled pages are publicly accessible. Investigated: docs 100%. | Agents can only index and fetch docs they can reach — past auth gates and over correct HTTP semantics. |
| warn | llms.txt present, valid & comprehensivevia docs | 29.2/30 | llms.txt directive found in HTML of 49 of 50 sampled pages (1 missing). Investigated: docs 97%, sdk 0%. | A valid, comprehensive llms.txt is the machine-readable entry point for agents. |
| pass | Registry & SDK presencevia docs | 28/28 | Indexed on Context7 (websites/you, 1519 snippets). Investigated: docs 100%, cli 100%, wellknown 100%, sdk 42%, mcp 0%. | Listing in MCP registries and publishing SDKs puts the API where agents and their tooling look. |
| warn | Crawlable / AEOvia wellknown | 9/12 | Sitemap has 16 entries but no lastmod values, so crawlers can't tell what changed recently. Investigated: wellknown 75%. Fix: Add accurate <lastmod> values to sitemap entries — AI-powered search uses them to prioritize crawling. | Bots allowed plus a fresh sitemap make docs findable by agent crawlers. |
Agent UnderstandingAgents can correctly interpret your APIs — machine-readable errors, consistent descriptions, structured data, parseable docs4 pass1 warn0 fail100A+
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Machine-readable errors (RFC 9457)via docs | 28/28 | Documents 5 distinct 4xx/5xx error response codes, so an agent can branch on specific failures instead of guessing. Investigated: docs 100%, sdk 100%, spec 50%. | RFC 9457 problem details and a documented error-code inventory let agents parse failures without burning tokens. |
| pass | Operation purpose clarityvia spec | 25/25 | 100% of operations (1 of 1) have both a clear summary and a descriptive name, so an agent can pick the right endpoint. Investigated: spec 100%, sdk 63%. | Agents select the right endpoint from its summary + operationId; clear, named operations make tool-selection reliable — the strongest driver of correct tool choice. |
| warn | Agent-navigable, token-efficient docsvia docs | 21.9/22 | 1 of 49 pages have substantive content differences between markdown and HTML (avg 3% missing). Investigated: docs 100%. | Server-rendered, clean, small-footprint docs are what an agent can cheaply fetch and parse correctly. |
| pass | Agent instructions file (AGENTS.md)via sdk | 10/10 | Agent context file present: agents.md (root). Investigated: sdk 100%, wellknown 0%. | An AGENTS.md gives coding agents explicit setup, auth, and usage instructions to interpret and operate the API — beyond llms.txt's link index. |
| pass | Docs structured datavia docs | 8/8 | Machine-readable JSON-LD Article markup on 20 of 20 assessed pages (100%), with dateModified present. Investigated: docs 100%. | Structured data (JSON-LD/schema.org) on docs pages gives agents an unambiguous parse target and is what answer engines cite. Detected on the JS-rendered head (Firecrawl) for a bounded page budget, so JS-injected JSON-LD is now caught; pages we can't render are excluded rather than failed. |
| na | Description consistency across surfaces | —/7 | Only 1 surface description(s) with ≥6 tokens available; need at least 2 to compare. | Every surface tells the same story about what the product is. |
Agent UsabilityAgents have the context to use your APIs reliably, not just find them5 pass0 warn0 fail100A+
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Idempotency documentedvia sdk | 27/27 | Built-in retry machinery is present (grep-derived). Investigated: sdk 100%, spec 0%, docs 0%. | Documented idempotency lets agents retry safely. |
| pass | Rate-limit signalingvia spec | 22/22 | rate-limit behavior is documented on the docs site at https://you.com/docs/rate-limits, even though it isn't declared in the API spec. Investigated: spec 100%, docs 100%. | Machine-readable rate-limit headers let agents throttle adaptively. |
| pass | Pagination documented & consistentvia docs | 22/22 | pagination is documented on the docs site at https://you.com/docs/agents/plugins, even though it isn't declared in the API spec. Investigated: docs 100%, spec 50%. | Consistent, documented pagination lets agents traverse collections. |
| pass | Sandbox separationvia spec | 20/20 | sandbox is documented on the docs site at https://you.com/docs/integrations/daytona, even though it isn't declared in the API spec. Investigated: spec 100%, docs 100%, sdk 100%. | An isolated environment lets agents exercise destructive operations safely. |
| pass | Runnable collection with test scriptsvia sdk | 9/9 | README is present and includes a runnable quickstart. Investigated: sdk 100%, platform 0%. | A public, maintained collection with assertions is runnable truth agents validate against. |
Resources Discovered
The public resources we found for You — the evidence behind the score. All discovered from public sources; nothing here requires access to your systems.
| Agent hints | Context7 (1,519) |
|---|---|
| APIs analyzed | 5 — Research, Answer, Contents, Finance Research, Web Search |