Unstoppable Domains

name: Unstoppable Domains
description: 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.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/unstoppable-domains/refs/heads/main/apis.yml
created: '2026-06-14'
modified: '2026-06-14'
specificationVersion: '0.19'
aid: unstoppable-domains
type: Index
tags:
- Web3
- Blockchain
- Domain Names
- NFT Domains
- Crypto
- Resolution
- DNS
- Decentralized
- Ethereum
- Polygon
apis:
- name: Unstoppable Domains Resolution API
  description: HTTP-based REST API for resolving Web3 domain names to cryptocurrency addresses and records. Supports 310+
    cryptocurrencies, reverse lookups, batch queries, TLD enumeration, and RPC proxy for Ethereum and Polygon. Covers UNS,
    CNS, and ENS naming services with TLDs including .crypto, .x, .nft, .wallet, .polygon, .bitcoin, .dao, .888, .blockchain,
    .zil, and .eth.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unstoppabledomains.com/resolution/overview
  baseURL: https://api.unstoppabledomains.com/resolve
  tags:
  - Resolution
  - Domain
  - Crypto Addresses
  - Reverse Lookup
  - Web3
  - ENS
  properties:
  - type: Documentation
    url: https://docs.unstoppabledomains.com/resolution/overview
  - type: APIReference
    url: https://docs.unstoppabledomains.com/web3/apis/resolution/openapi
  - type: OpenAPI
    url: openapi/unstoppable-domains-resolution-api-openapi.yaml
- name: Unstoppable Domains Partner API
  description: RESTful Partner API v3 for Web3 domain distribution and management. Enables searching, registering, and managing
    domains in custody wallets and self-custody wallets on Polygon and Base blockchains. Covers domain lifecycle operations,
    custody wallet creation, pending operation tracking, webhooks, and domain suggestions. Usage-based billing with periodic
    invoicing.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unstoppabledomains.com/domain-distribution-and-management/overview
  baseURL: https://api.unstoppabledomains.com/partner/v3
  tags:
  - Partner
  - Domain Registration
  - Custody Wallet
  - Web3
  - NFT Domains
  - Blockchain
  properties:
  - type: Documentation
    url: https://docs.unstoppabledomains.com/domain-distribution-and-management/overview
  - type: APIReference
    url: https://docs.unstoppabledomains.com/apis/partner/openapi
  - type: OpenAPI
    url: openapi/unstoppable-domains-partner-api-openapi.yaml
- name: Unstoppable Domains Reseller API
  description: RESTful API for resellers offering traditional DNS domain registration and management alongside Web3 domains.
    Supports domain search with pricing and availability, registration workflows, DNS record management, and lifecycle operations
    through a single unified interface.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unstoppabledomains.com/apis/reseller/quick-start
  baseURL: https://api.unstoppabledomains.com/partner/v3
  tags:
  - Reseller
  - DNS
  - Domain Registration
  - Traditional Domains
  - White-label
  properties:
  - type: Documentation
    url: https://docs.unstoppabledomains.com/apis/reseller/quick-start
  - type: APIReference
    url: https://docs.unstoppabledomains.com/apis/reseller/openapi.yaml
  - type: OpenAPI
    url: openapi/unstoppable-domains-reseller-api-openapi.yaml
- name: Unstoppable Domains User API
  description: MCP-compatible REST API for programmatic user account operations including domain search and purchase, portfolio
    management, DNS record configuration (A, AAAA, CNAME, MX, TXT, NS, SRV, CAA), marketplace listing creation and management,
    cart and checkout workflows, offer handling, and real-time webhook notifications for domain events.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unstoppabledomains.com/user-api/overview
  baseURL: https://api.unstoppabledomains.com
  tags:
  - User API
  - Portfolio
  - DNS Management
  - Marketplace
  - Cart
  - Webhooks
  properties:
  - type: Documentation
    url: https://docs.unstoppabledomains.com/user-api/overview
  - type: APIReference
    url: https://docs.unstoppabledomains.com/apis/user-api/openapi
  - type: OpenAPI
    url: openapi/unstoppable-domains-user-api-openapi.json
common:
- type: Website
  url: https://unstoppabledomains.com
- type: Documentation
  url: https://docs.unstoppabledomains.com
- type: APIReference
  url: https://docs.unstoppabledomains.com/apis/overview
- type: GitHubOrg
  url: https://github.com/unstoppabledomains
- type: Sandbox
  url: https://api.ud-sandbox.com
- type: Authentication
  url: https://docs.unstoppabledomains.com/domain-distribution-and-management/quickstart/retrieve-an-api-key
- type: Pricing
  url: https://support.unstoppabledomains.com/support/solutions/articles/48001184253-pricing-tiers-for-regular-domains
- type: Blog
  url: https://unstoppabledomains.com/blog
- type: Developers
  url: https://unstoppabledomains.com/developers
- type: Plans
  url: plans/unstoppable-domains-plans-pricing.yml
- type: RateLimits
  url: rate-limits/unstoppable-domains-rate-limits.yml
- type: FinOps
  url: finops/unstoppable-domains-finops.yml
- type: X
  url: https://x.com/unstoppableweb
- type: LinkedIn
  url: https://www.linkedin.com/company/unstoppable-domains
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com