# Linen App

**Canonical:** https://apis.io/providers/linen-app/  
**Website:** https://linen.app  
**APIs profiled:** 0

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.

## Kin Score — 1.9 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 1.9).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Payments**: 9.4 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Linen App Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Wallets, Cryptocurrency, Ethereum, DeFi, Self-Custody, Multisig, Blockchain, Discontinued

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/linen-app/). Scores are computed from the provider's own public artifacts under a published rubric.