# card.io

**Canonical:** https://apis.io/providers/cardio/  
**Website:** https://www.card.io  
**APIs profiled:** 0

card.io was a mobile SDK company that provided fast, easy credit-card scanning inside iOS and Android apps using the device camera, letting users capture card details by holding a card up to the lens instead of typing them. Founded around 2011 and backed by Uncork Capital (then SoftTech VC), card.io was acquired by PayPal in 2012. Its scanning SDKs for iOS, Android, Cordova, and React Native were open-sourced in December 2014 under the card-io GitHub organization, and the product was ultimately discontinued. The company operated no public REST or web API; its product surface was a set of client-side mobile SDKs, all of which are now archived. This profile is maintained for network completeness and historical/portfolio context.

## Kin Score — 8.0 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 8.0).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 16.7 |
| 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)

- **Cardio Domain Security** — DMARC

## Tags

Company, Payments, Mobile, SDK, Credit Cards, Computer-Vision, Card Scanning, Defunct

---

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