# Blue Nile

**Canonical:** https://apis.io/providers/blue-nile/  
**Website:** https://www.bluenile.com/  
**APIs profiled:** 0

Blue Nile is an online retailer of diamonds and fine jewelry, founded in 1999 and headquartered in Seattle, Washington. It pioneered the direct-to-consumer model for engagement rings and loose diamonds, letting shoppers search and compare certified diamonds by cut, color, clarity, and carat and build custom rings, wedding bands, and gifts online. The company is now part of Signet Jewelers. Blue Nile is included in the API Evangelist network as a consumer / e-commerce company profile; it was originally surfaced as a portfolio company of Bessemer Venture Partners, Lightspeed Venture Partners, and Trinity Ventures. No public developer API, OpenAPI specification, or SDK surface was found during enrichment.

## Kin Score — 10.6 / 100 (minimal)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 10.6).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Blue Nile Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Consumer, E-Commerce, Retail, Jewelry, Diamonds, Direct to Consumer

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/blue-nile/). Scores are computed from the provider's own public artifacts under a published rubric.