Ballet

Ballet is a consumer cryptocurrency cold-storage company founded by Bobby Lee that makes physical, non-electronic wallet cards based on the BIP38 open-source standard, letting people store Bitcoin, Ethereum, XRP and 1,000+ coins and NFTs safe from electronic hacking and preventable user error. The physical REAL Series card holds the keys; a companion mobile app, Ballet Crypto, lets holders check balances and market value and add assets. Backed by Ribbit Capital, Ballet is a hardware/consumer product rather than a developer platform, so it publishes no public API — this profile captures its identity, security posture, and open-source footprint.

Ballet is profiled on the APIs.io network. Tagged areas include Company, Crypto, Cryptocurrency, Wallets, and Cold Storage.

Ballet’s developer surface includes engineering blog and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

2.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

Company Crypto Cryptocurrency Wallets Cold Storage BitcoinHardware WalletSelf-Custody

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 2.4/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.4 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/ballet: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: ballet
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ballet.png
name: Ballet
description: Ballet is a consumer cryptocurrency cold-storage company founded by Bobby Lee that makes physical, non-electronic
  wallet cards based on the BIP38 open-source standard, letting people store Bitcoin, Ethereum, XRP and 1,000+ coins and NFTs
  safe from electronic hacking and preventable user error. The physical REAL Series card holds the keys; a companion mobile
  app, Ballet Crypto, lets holders check balances and market value and add assets. Backed by Ribbit Capital, Ballet is a hardware/consumer
  product rather than a developer platform, so it publishes no public API — this profile captures its identity, security posture,
  and open-source footprint.
url: https://raw.githubusercontent.com/api-evangelist/ballet/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- ribbit-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Crypto
- Cryptocurrency
- Wallets
- Cold Storage
- Bitcoin
- Hardware Wallet
- Self-Custody
tags_raw:
- Company
- Crypto
- Cryptocurrency
- Wallet
- Cold Storage
- Bitcoin
- Hardware Wallet
- Self-Custody
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/ballet-domain-security.yml
- type: Website
  url: https://www.ballet.com
- type: GitHubOrganization
  url: https://github.com/balletcrypto
- type: Blog
  url: https://medium.com/@BalletCrypto
- type: TermsOfService
  url: https://www.ballet.com/terms/
- type: PrivacyPolicy
  url: https://www.ballet.com/privacy/
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence