aid: earncom
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/earncom.png
name: Earn.com
description: 'Earn.com was a cryptocurrency startup founded in 2013 as 21e6 and later
  known as 21 Inc and 21.co, backed by a16z and others, which raised over $116 million.
  It began as a Bitcoin mining venture selling the 21 Bitcoin Computer, then pivoted
  to a paid-messaging marketplace where senders paid recipients in cryptocurrency to
  read and reply to email. Coinbase acquired Earn.com in April 2018 for a reported
  $120 million, and co-founder Balaji Srinivasan became Coinbase''s first Chief Technology
  Officer. The standalone Earn.com product was retired and the brand was folded into
  Coinbase Earn, the learn-and-earn program. As of July 2026 the earn.com domain issues
  a blanket HTTP 301 redirect for every path to https://www.coinbase.com/earn, and
  no developer, documentation, or API subdomain resolves. Earn.com therefore has no
  independent API surface; any remaining API capability lives under Coinbase.'
url: https://raw.githubusercontent.com/api-evangelist/earncom/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: acquired-no-api-surface
x-status: acquired
x-acquired-by: Coinbase
x-acquired-date: '2018-04'
x-successor: https://www.coinbase.com/earn
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Cryptocurrency
- Bitcoin
- Payments
- Acquired
- Defunct
- Messaging
common:
- type: Website
  url: https://earn.com/
- type: Successor
  url: https://www.coinbase.com/earn
- type: DomainSecurity
  url: security/earncom-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/21dotco
- type: SourceCode
  url: https://github.com/21dotco/two1-python
- type: Packages
  url: packages/earncom-packages.yml
- type: SDKs
  url: packages/earncom-packages.yml
  name: two1 (Python) — archived
- type: CLI
  url: cli/earncom-cli.yml
  name: 21 CLI — archived
- type: ChangeLog
  url: changelog/earncom-changelog.yml
- type: Lifecycle
  url: lifecycle/earncom-lifecycle.yml
- type: Authentication
  url: authentication/earncom-authentication.yml
- type: Conventions
  url: conventions/earncom-conventions.yml
- type: ErrorCatalog
  url: errors/earncom-error-codes.yml
# No pointer emitted for well-known/earncom-well-known.yml: the probe found no
# discovery documents (every path 301s to Coinbase), so there is no WellKnown
# catalog to advertise. The artifact is retained as an honest probe record.
# Deliberately absent, because Earn.com genuinely has none of these any more:
# StatusPage, Deprecation, Idempotency, Security, Compliance, TrustCenter,
# MCPServer, AgentSkill, AsyncAPI, Webhooks, Sandbox, Postman, Pricing, SignUp,
# TermsOfService, PrivacyPolicy, DeveloperPortal, Documentation, APIReference.
apis: []
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 9
  pass: local-v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io