# Unstoppable Domains

**Canonical:** https://apis.io/providers/unstoppable-domains/  
**Website:** https://unstoppabledomains.com  
**APIs profiled:** 33

Web3 domain name service providing REST APIs for resolving crypto domain names, managing NFT domains, reverse lookups, cross-chain address resolution, domain registration, and DNS management across 150+ TLDs on multiple blockchains.

## Kin Score — 39.9 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 39.9).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 62.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 31.0 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 49.1 (agent-ready)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (33)

- **Unstoppable Domains account API** — Manage your account details
- **Unstoppable Domains AI Lander API** — Generate, manage, and remove AI-powered landing pages for domains (requires authentication)
- **Unstoppable Domains Backorders API** — Create and manage domain backorders, and browse expired or pending-delete domains.
- **Unstoppable Domains Cart API** — Shopping cart management, payment methods, and checkout (requires authentication)
- **Unstoppable Domains contacts API** — Create and manage ICANN-required contacts for domain registration. Contacts represent individuals or organizations associated with domain roles (owner, admin, tech, billing). Ne...
- **Unstoppable Domains DNS Management API** — Manage DNS records, nameservers, and hosting configurations for owned domains (requires authentication)
- **Unstoppable Domains dns-records API** — Create, read, update and delete DNS records for your domains. Also includes DNS metadata, nameserver management, and DNSSEC configuration.
- **Unstoppable Domains domain-contacts API** — View and update the ICANN-required contacts (owner, admin, tech, billing) assigned to a specific domain.
- **Unstoppable Domains domain-flags API** — View and manage domain flags that control behavior and security settings such as DNS resolution, transfer locks, WHOIS privacy, and more.
- **Unstoppable Domains domain-management API** — Comprehensive domain updates — modify nameservers, DNSSEC, contacts, flags, and DNS records in a single request.
- **Unstoppable Domains domain_registration API** — Domain details/availability lookups and registration.
- **Unstoppable Domains domain-search API** — Search for domain availability and retrieve details for one or more domains. Use the `$expand` parameter to include registration details and flags in the response.
- **Unstoppable Domains domain-transfers API** — Check transfer eligibility and retrieve authorization codes for transferring domains to another registrar.
- **Unstoppable Domains domains API** — Manage your custody domains.
- **Unstoppable Domains external_domains API** — Manage domains that are owned in external, self-custody wallets. The key difference between Custody and Self-Custody operations is that all Self-Custody operations require a sig...
- **Unstoppable Domains external_wallets API** — Manage self-custody wallets to allow for management of self-custody domains. ## Verifying Self-Custody Wallets Before you can initiate self-custody operations, you must first [v...
- **Unstoppable Domains hosting API** — Configure how your domains serve content on the web. Hosting configurations control what happens when someone visits your domain — whether it redirects to another URL or proxies...
- **Unstoppable Domains Leads API** — Domain conversations and messaging between buyers and sellers (requires authentication)
- **Unstoppable Domains marketplace API** — Browse and search the Unstoppable Domains secondary marketplace. Retrieve paginated listings of domains available for purchase from existing owners, with filtering by TLD and so...
- **Unstoppable Domains operations API** — All asynchronous processes handled by the API are represented as Operations. This includes registering a domain, updating a domain's records, changing a domain's owner, returnin...
- **Unstoppable Domains Owner API** — The Owner API from Unstoppable Domains — 1 operation(s) for owner.
- **Unstoppable Domains owners API** — Search for owned domains
- **Unstoppable Domains Portfolio API** — Manage owned domains (requires authentication)
- **Unstoppable Domains pricing API** — Retrieve pricing information for domain registration, renewal, transfer, and restoration by domain name or TLD.
- **Unstoppable Domains Reverse API** — The Reverse API from Unstoppable Domains — 2 operation(s) for reverse.
- **Unstoppable Domains Rpc Proxy API** — The Rpc Proxy API from Unstoppable Domains — 2 operation(s) for rpc proxy.
- **Unstoppable Domains search API** — Search for owned entities
- **Unstoppable Domains Session API** — Generate authenticated browser URLs for account and checkout flows that require web handoff.
- **Unstoppable Domains Status API** — The Status API from Unstoppable Domains — 2 operation(s) for status.
- **Unstoppable Domains suggestions API** — Suggestions for finding available domains
- **Unstoppable Domains tlds API** — Browse available top-level domains (TLDs), their details, and DNS security configuration.
- **Unstoppable Domains wallets API** — Manage custody wallets used for storing and managing domains without any signature collection. These wallets provide the most streamlined way to interact with domains since the ...
- **Unstoppable Domains webhooks API** — Manage webhooks used for asynchronous updates to your server. You can follow our getting started guide here: [Webhooks in the Partner API](https://docs.unstoppabledomains.com/do...

## Agentic access (1)

- **Unstoppable Domains Agentic Access** — 142 operations · 89 acting · 6 human-in-the-loop

## Security (3)

- **Unstoppable Domains Authentication** — http · 1 scheme
- **Unstoppable Domains Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Unstoppable Domains Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Unstoppable Domains Plans Pricing**

## Tags

Web3, Blockchain, Domain Names, NFT Domains, Crypto, Resolution, DNS, Decentralized, Ethereum, Polygon

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