# Spark Mail (Readdle)

**Canonical:** https://apis.io/providers/readdle-spark/  
**Website:** https://sparkmailapp.com/  
**APIs profiled:** 1

Spark Mail, developed by Readdle, is a smart email client focused on helping users achieve inbox zero and stay organized. It offers features like a focused inbox, snoozing, smart notifications, and powerful search across iOS, macOS, Android, and Windows platforms, aiming to boost productivity for personal and professional communication.

## Kin Score — 26.6 / 100 (thin)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 57.1 |
| Contract Quality | 0.0 |
| Contract Governance | 18.2 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 16.7 |
| Access Clarity | 63.2 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 24.5 (matched via fallback).

## Agent readiness — 3.1 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |

## APIs (1)

- **Spark Mail API** — Spark Mail provides email client features and AI-powered reply capabilities. Documentation is available at the guides page.

## Security (2)

- **Readdle Spark Domain Security** — TLSv1.3 · HSTS · DMARC
- **Readdle Spark Vulnerability Disclosure** — no policy recorded

## Plans (1)

- **Readdle Spark Plans Pricing**

## Tags

Email, Productivity, iOS, macOS, Android

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