Linen App

Linen Wallet, operated by Linen Mobile, Inc., was a mobile self-custody cryptocurrency wallet that used multi-signature protection built on Safe (formerly Gnosis Safe) smart-contract accounts instead of the single seed phrase used by most wallets. It began as a DeFi savings wallet earning yield on stablecoins through Compound, later adding Ethereum staking and Polygon support, and grew out of Bloqboard, a non-custodial digital-asset lending platform built on the Dharma, Compound and MakerDAO protocols. Linen was backed by Polychain, Coinbase Ventures, HashKey and Wyre, and won Aave and Polygon grants. The product is discontinued — since late 2023 every path on linen.app has returned a site-wide redirect to a single X post, and no documentation, developer portal, API or specification was ever published publicly. See lifecycle/linen-app-lifecycle.yml for the probed wind-down evidence.

Linen App is profiled on the APIs.io network. Tagged areas include Company, Wallets, Cryptocurrency, Ethereum, and DeFi.

🌐 Visit website 📡 Source on GitHub

1.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyWalletsCryptocurrencyEthereumDeFiSelf-CustodyMultisigBlockchainDiscontinued

Kin Score

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

Composite quality — 1.9/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 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/linen-app: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

SourceCode

SourceCode

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: linen-app
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/linen-app.png
name: Linen App
description: Linen Wallet, operated by Linen Mobile, Inc., was a mobile self-custody cryptocurrency wallet that used multi-signature
  protection built on Safe (formerly Gnosis Safe) smart-contract accounts instead of the single seed phrase used by most wallets.
  It began as a DeFi savings wallet earning yield on stablecoins through Compound, later adding Ethereum staking and Polygon
  support, and grew out of Bloqboard, a non-custodial digital-asset lending platform built on the Dharma, Compound and MakerDAO
  protocols. Linen was backed by Polychain, Coinbase Ventures, HashKey and Wyre, and won Aave and Polygon grants. The product
  is discontinued — since late 2023 every path on linen.app has returned a site-wide redirect to a single X post, and no documentation,
  developer portal, API or specification was ever published publicly. See lifecycle/linen-app-lifecycle.yml for the probed
  wind-down evidence.
url: https://raw.githubusercontent.com/api-evangelist/linen-app/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- polychain
x-tier: stub
x-tier-reason: defunct-no-public-api
x-status: discontinued
x-legal-entity: Linen Mobile, Inc.
x-formerly: Bloqboard
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Wallets
- Cryptocurrency
- Ethereum
- DeFi
- Self-Custody
- Multisig
- Blockchain
- Discontinued
tags_raw:
- Company
- Wallet
- Cryptocurrency
- Ethereum
- DeFi
- Self Custody
- Multisig
- Blockchain
- Discontinued
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: IssueTracker
  url: https://github.com/linen-app/bloqboard-lending-wallet/issues
- type: License
  name: Apache-2.0
  url: https://github.com/linen-app/bloqboard-lending-wallet/blob/master/LICENSE
- type: Website
  url: https://linen.app
- type: GitHubOrganization
  url: https://github.com/linen-app
- type: SourceCode
  name: Bloqboard Lending Wallet
  url: https://github.com/linen-app/bloqboard-lending-wallet
- type: X
  url: https://x.com/GetLinen
- type: Lifecycle
  url: lifecycle/linen-app-lifecycle.yml
- type: DomainSecurity
  url: security/linen-app-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence