# mailfloss

**Canonical:** https://apis.io/providers/mailfloss/  
**Website:** https://mailfloss.com/  
**APIs profiled:** 1

mailfloss provides an automated email verification service that cleans email lists on autopilot, preventing bot sign‑ups, typos, and bounces. Founded to solve deliverability problems, it integrates with major ESPs, offers real‑time typo fixing, and supports teams of any size. The platform runs continuously, protecting sender reputation and reducing ad spend by ensuring only valid addresses remain in marketing lists.

## Kin Score — 51.2 / 100 (developing)

Scored 2026-11-06 under rubric 0.27.0.

| Facet | Score |
|---|---|
| Discoverability | 66.1 |
| Contract Quality | 56.1 |
| Contract Governance | 35.6 |
| Operational Transparency | 42.1 |
| Developer Ergonomics | 41.7 |
| Access Clarity | 53.9 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 26.5 (matched via fallback).

## Agent readiness — 58.5 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| Idempotency | verified |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| 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 | paginated |
| Operation Distinctiveness | distinct |
| MCP Tool Quality | na |

## Access

Paid — onboarding: unknown, pricing: paid, trial: no (confidence: high).

## APIs (8)

- **mailfloss Account API** — Account info, credits, API key management
- **mailfloss Batch API** — Asynchronous batch verification jobs
- **mailfloss Integrations API** — ESP connections — connect, list, manage, and configure email-platform integrations (incl. per-connection keyword rules)
- **mailfloss Privacy API** — Data privacy / erasure API
- **mailfloss Reports API** — Verification usage analytics
- **mailfloss Team API** — Organization members / seats
- **mailfloss Verification API** — Single-email verification endpoints
- **mailfloss Webhooks API** — Webhook subscriptions — event notifications POSTed to your endpoints

## Agentic access (1)

- **Mailfloss Agentic Access** — 33 operations · 14 acting

## Security (3)

- **Mailfloss Authentication** — 2 schemes
- **Mailfloss Domain Security** — TLSv1.3 · HSTS · DMARC
- **Mailfloss Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Mailfloss Plans Pricing**

## Tags

Email Verification, Marketing, Software-as-a-Service, Automation, Deliverability

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