# resent-one

**Canonical:** https://apis.io/providers/resent-one/  
**Website:** https://resent.one/  
**APIs profiled:** 1

Email and SMS for developers and enterprise SaaS. Send campaigns and transactional mail, automate journeys, and track delivery from one workspace. Start free with Resent. Resent email API with REST, SMTP relay, SDKs, and signed webhooks. Idempotent sends, delivery events, and 300 free emails a day. Start free—no card.

## Kin Score — 32.3 / 100 (thin)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 67.9 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 26.2 |
| Access Clarity | 73.2 |

Regulatory layer — **Telecommunications**: 30.8 (matched via tags).

## Agent readiness — 27.2 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | served |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | served |
| Protected Resource Metadata | verified |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |

## APIs (1)

- **Resent Email API** — Resent email API with REST, SMTP relay, SDKs, and signed webhooks. Idempotent sends, delivery events, and 300 free emails a day.

## Security (2)

- **Resent One Authentication** — 0 schemes
- **Resent One Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Resent One Plans Pricing**

## Tags

Company, Email, SMS, Messaging, SaaS

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