aid: elementus
name: Elementus
description: 'Elementus is a New York blockchain intelligence company founded in 2017
  that attributes on-chain addresses to real-world entities across multiple chains,
  and sells that attribution graph to compliance, investigations and market-intelligence
  teams. Its public API surface is the Attribution API, a key-authenticated REST service
  at attribution-api.elementus.io that resolves batches of blockchain addresses to
  a beneficial owner, custodian, entity name and OFAC/SDN sanction status. As of the
  2026-08-12 probe every Elementus web host — the marketing site, the app and the API
  — is unresolvable in DNS, so the developer surface documented here is reconstructed
  from the company''s own public GitHub organization rather than from a live site.'
url: https://raw.githubusercontent.com/api-evangelist/elementus/refs/heads/main/apis.yml
image: https://avatars.githubusercontent.com/u/31413970?v=4
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.23'
created: '2026-08-12'
modified: '2026-08-12'
tags:
- Company
- Blockchain
- Cryptocurrency
- Analytics
- Compliance
- Financial Crime
- Sanctions Screening
- Data
- Web3
apis:
- name: Elementus Attribution API
  description: 'REST API that resolves a batch of blockchain addresses to attribution
    data — beneficial owner, custodian, entity name, OFAC sanction flag and SDN name.
    Authenticated with an X-API-Key header. The operation surface documented in Elementus''
    own public API example client is POST /address-attributions and GET /health, with
    a Swagger UI advertised at /swagger-ui. The host does not currently resolve.'
  humanURL: https://github.com/elementus-io/api-example
  baseURL: https://attribution-api.elementus.io
  tags:
  - Attribution
  - Blockchain
  - Sanctions Screening
  properties:
  - type: Authentication
    url: authentication/elementus-authentication.yml
  - type: Conventions
    url: conventions/elementus-conventions.yml
  - type: SourceCode
    url: https://github.com/elementus-io/api-example
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.elementus.io/
- type: GitHubOrganization
  url: https://github.com/elementus-io
- type: Packages
  url: packages/elementus-packages.yml
- type: DomainSecurity
  url: security/elementus-domain-security.yml
- type: LLMsTxt
  url: llms/elementus-llms.txt
- type: Plans
  url: plans/elementus-plans-pricing.yml
- type: RateLimits
  url: rate-limits/elementus-rate-limits.yml
x-enrichment:
  date: '2026-08-12'
  status: minimal
  artifacts_added: 8
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: >-
    Elementus' entire web surface has been withdrawn from DNS — the apex publishes
    no address record, www.elementus.io is NXDOMAIN, and both
    attribution-api.elementus.io and app.elementus.io are dangling CNAMEs to an AWS
    load balancer and a CloudFront distribution that no longer exist — while the
    zone itself stays live on Cloudflare and still routes mail to Google Workspace,
    so the company has parked its public presence rather than released the domain.
  evidence:
  - url: https://www.elementus.io/
    status: 0
  - url: https://attribution-api.elementus.io/swagger-ui
    status: 0
  - url: https://github.com/elementus-io/api-example
    status: 200
  checked: '2026-08-12'