# Internet Assigned Numbers Authority

**Canonical:** https://apis.io/providers/internet-assigned-numbers-authority/  
**Website:** https://www.iana.org/  
**APIs profiled:** 3

The Internet Assigned Numbers Authority (IANA) performs the global coordination of the DNS Root, IP addressing, and other Internet protocol resources. IANA maintains the protocol registries, top-level domain delegations, time zone database, and language subtag registry that the Internet relies on. Bulk registry data is published as machine-readable files distributed via rsync and FTP rather than through a public REST API.

## Kin Score — 12.4 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 12.4).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 2.4 |
| 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 (3)

- **IANA Protocol Registries** — The IANA Protocol Registries publish the authoritative assignments for Internet protocol parameters. Bulk registry data is available as XML, CSV, and plain-text files distribute...
- **IANA Time Zone Database** — The IANA Time Zone Database (tz database) provides the canonical source of time zone and daylight saving rules used by operating systems and applications worldwide. Data and sou...
- **IANA Root Zone Database** — The Root Zone Database represents the delegation details of top-level domains, including country code (ccTLD) and generic (gTLD) top-level domains.

## Security (1)

- **Internet Assigned Numbers Authority Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Internet Assigned Numbers Authority Plans Pricing**

## Tags

Domains, DNS, IP Addressing, Media Types, Protocols, Standards, Timezones

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