# Litmus

**Canonical:** https://apis.io/providers/litmus/  
**Website:** https://www.litmus.com/  
**APIs profiled:** 6

Email testing and analytics platform that allows developers and marketers to preview, test, and analyze email campaigns across multiple email clients and devices before sending.

## Kin Score — 37.6 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 37.6).

| Facet | Score |
|---|---|
| Discoverability | 55.6 |
| Contract Quality | 66.8 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 40.5 |
| Commercial Clarity | 23.7 |
| Access Clarity | 23.7 |

## Agent readiness — 35.9 (agent-ready)

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

## Access

Enterprise · Self-serve signup — onboarding: self-serve, pricing: enterprise, trial: no (confidence: high).

## APIs (6)

- **Litmus Analytics API** — Campaign engagement metrics and breakdowns
- **Litmus Campaigns API** — Email campaign tracking and management
- **Litmus Clients API** — Available email client configurations
- **Litmus Previews API** — Email preview generation and management
- **Litmus Results API** — Test result retrieval
- **Litmus Tests API** — Email test creation and management

## Agentic access (1)

- **Litmus Agentic Access** — 21 operations · 5 acting

## Security (3)

- **Litmus Authentication** — http · 2 schemes
- **Litmus Domain Security** — TLSv1.3 · HSTS · DMARC
- **Litmus Trust Center** — SOC 2, ISO 27001, GDPR

## Plans (1)

- **Litmus Plans Pricing**

## Tags

Developer Tools, Email Testing, Marketing Tools, Quality Assurance

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