# JSON

**Canonical:** https://apis.io/providers/json/  
**Website:** https://www.json.org/  
**APIs profiled:** 1

JSON (JavaScript Object Notation) is a lightweight, text-based, language-independent data interchange format that uses human-readable text to represent structured data as key-value pairs and arrays. JSON is standardized by RFC 8259 (December 2017), which obsoletes RFC 7159 (2014) and RFC 4627 (2006). It has become the de facto standard for data exchange in web APIs, configuration files, and NoSQL databases due to its simplicity and broad language support.

## Kin Score — 16.5 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 16.5).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 11.3 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 3.0 (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 | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **JSON** — JSON (JavaScript Object Notation) specification and related resources. Standardized by IETF as RFC 8259 (December 2017, edited by Tim Bray) and by Ecma International as ECMA-404...

## Security (1)

- **Json Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Json Plans Pricing**

## Tags

Data Format, Serialization, Web Development, JSON, RFC 8259

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