Engeng.it
Eng's API program shows meaningful strength in agent usability foundations and discovery reachability, but two areas are holding back partner momentum most acutely: Developer Experience is weak enough that partners cannot get hands-on quickly — there is no quickstart, no code samples, and descriptions are incomplete — and Agent Understanding is undermined by missing agent-specific guidance files and inconsistent descriptions across surfaces. Prioritize closing the onboarding and description gaps first to compress time to a partner's first successful integration, then harden agent discoverability and runnable truth so AI-assisted workflows can operate reliably without human intervention.
API DesignA clean, typed, well-governed API contract agents can reason about2 pass0 warn1 fail75B
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Schema coverage & depthvia sdk | 25/25 | 66/66 enums are named types (not bare strings). Investigated: sdk 100%. | Typed, complete request/response schemas are what make agent function-calling possible. |
| pass | Example coveragevia sdk | 10/10 | README is present and includes a runnable quickstart. Investigated: sdk 100%, docs 0%. | Examples carry shape semantics schemas under-specify — for humans and agents alike. |
| fail | Security & governance hygienevia wellknown | 0/15 | No security.txt at /.well-known/security.txt or /security.txt. Investigated: wellknown 0%. | No leaked secrets, no critical lint violations, no OWASP API Top-10 spec smells, and a published vulnerability-disclosure channel. |
| na | Machine-readable, versioned contract | —/25 | No surface produced evidence for this capability in this run. | A current OpenAPI version with a declared versioning scheme lets agents reason about the contract. |
| na | Auth declared & discoverable | —/25 | No surface produced evidence for this capability in this run. | Agents can only authenticate when auth is declared, scoped, and discoverable. |
Developer ExperienceThe context both developers and agents need to integrate fast — onboarding, code samples, complete descriptions and worked examples2 pass0 warn3 fail56D
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Self-service developer portalvia docs | 29/29 | Signup page at https://www.eng.it/en/careers/join-us; no free-tier language detected in docs/pricing. Investigated: docs 100%. | Self-serve key/account creation is the fast first call for partners, with no sales gate. |
| pass | Changelog publishedvia sdk | 13/13 | Newest official SDK activity 0 day(s) ago. Investigated: sdk 100%. | A published changelog lets partners track changes without surprise. |
| fail | Quickstart presentvia docs | 0/25 | No quickstart/getting-started page found at the conventional paths. Investigated: docs 0%. | A quickstart is the fastest path from landing page to first successful call. |
| fail | Code samples in docsvia docs | 0/18 | No detectable code samples across 19 sampled docs pages. Investigated: docs 0%. | Multi-language samples shorten time-to-first-call. |
| fail | Description completenessvia sdk | 0/15 | 3/3 operations lack a description. Investigated: sdk 0%. | Complete descriptions are the context humans and agents need to use endpoints. |
Agent DiscoveryPartners and their agents can find your APIs — llms.txt, registries, crawlable and reachable docs2 pass1 warn1 fail70B
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Registry & SDK presencevia docs | 28/28 | Indexed on Context7 (websites/godotengine_en_4_7, 109392 snippets). Investigated: docs 100%, sdk 33%, cli 0%, mcp 0%, wellknown 0%. | Listing in MCP registries and publishing SDKs puts the API where agents and their tooling look. |
| warn | Docs reachable, not hard auth-gatedvia docs | 22.5/30 | Server ignores Accept: text/markdown header (0/50 sampled pages return markdown). Investigated: docs 75%. | Agents can only index and fetch docs they can reach — past auth gates and over correct HTTP semantics. |
| pass | Crawlable / AEOvia wellknown | 12/12 | Docs paths crawlable by all monitored AI agents. Investigated: wellknown 100%. | Bots allowed plus a fresh sitemap make docs findable by agent crawlers. |
| fail | llms.txt present, valid & comprehensivevia docs | 0/30 | No llms.txt found at any candidate location (https://www.eng.it/en/llms.txt, https://www.eng.it/llms.txt, https://www.eng.it/docs/llms.txt). Investigated: docs 0%, sdk 0%. | A valid, comprehensive llms.txt is the machine-readable entry point for agents. |
Agent UnderstandingAgents can correctly interpret your APIs — machine-readable errors, consistent descriptions, structured data, parseable docs1 pass2 warn2 fail69C
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Machine-readable errors (RFC 9457)via sdk | 28/28 | Single base error "PanopticError" with 209 subclasses. Investigated: sdk 100%. | RFC 9457 problem details and a documented error-code inventory let agents parse failures without burning tokens. |
| warn | Agent-navigable, token-efficient docsvia docs | 14.1/22 | No sampled pages support .md URLs (0/50 tested). Investigated: docs 64%. | Server-rendered, clean, small-footprint docs are what an agent can cheaply fetch and parse correctly. |
| warn | Docs structured datavia docs | 4/8 | JSON-LD on 2/18 assessed pages, but coverage is sparse or dateModified is missing. Investigated: docs 50%. | 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. |
| fail | Agent instructions file (AGENTS.md)via wellknown | 0/10 | No AGENTS.md at the site root or /.well-known/. Investigated: 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. |
| fail | Description consistency across surfaces | 0/7 | Mean pairwise description similarity across 2 surfaces (docs, sdk) is 0% (threshold 35% for full credit). | Every surface tells the same story about what the product is. |
| na | Operation purpose clarity | —/25 | No surface produced evidence for this capability in this run. | Agents select the right endpoint from its summary + operationId; clear, named operations make tool-selection reliable — the strongest driver of correct tool choice. |
Agent UsabilityAgents have the context to use your APIs reliably, not just find them1 pass1 warn1 fail72B
| Signal | Points | Findings | Rationale | |
|---|---|---|---|---|
| pass | Idempotency documentedvia sdk | 27/27 | Built-in retry machinery is present (grep-derived). Investigated: sdk 100%. | Documented idempotency lets agents retry safely. |
| warn | Sandbox separationvia sdk | 10/20 | No test-mode flag or sandbox environment is exposed. Investigated: sdk 50%. | An isolated environment lets agents exercise destructive operations safely. |
| fail | Runnable collection with test scriptsvia platform | 0/9 | No public Postman workspace discovered for the org. Investigated: platform 0%. | A public, maintained collection with assertions is runnable truth agents validate against. |
| na | Rate-limit signaling | —/22 | No surface produced evidence for this capability in this run. | Machine-readable rate-limit headers let agents throttle adaptively. |
| na | Pagination documented & consistent | —/22 | No surface produced evidence for this capability in this run. | Consistent, documented pagination lets agents traverse collections. |
Resources Discovered
The public resources we found for Eng — the evidence behind the score. All discovered from public sources; nothing here requires access to your systems.
| Agent hints | Context7 (109,392) |
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