# SendBridge

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

SendBridge provides an email verification service that helps businesses ensure high deliverability by validating email addresses in real time. Their API offers a simple GET endpoint that returns JSON indicating whether an address is valid, disposable, or risky, enabling marketers and developers to clean mailing lists, reduce bounce rates, and improve inbox placement. The platform emphasizes fast responses, easy integration, and detailed validation results, supporting use cases such as sign‑up forms, CRM data hygiene, and campaign targeting.

## Kin Score — 53.6 / 100 (developing)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 66.1 |
| Contract Quality | 63.2 |
| Contract Governance | 22.0 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 42.1 |
| Access Clarity | 76.3 |

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

## Agent readiness — 36.6 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | verified |
| Error Semantics | derived |
| OpenAPI Examples | partial |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | unknown |
| 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 | distinct |

## APIs (4)

- **SendBridge Account API** — Inspect the current API key. Free — does not charge credits.
- **SendBridge DMARC API** — Read monitored domains, 7-day DMARC stats, and recent aggregate reports. Live calls are free. Test keys return fixtures.
- **SendBridge Mail Tester API** — Generate a unique inbox, send a message to it, then poll the deliverability report. Live calls charge 200 credits. Test keys return a completed demo report for free.
- **SendBridge Validation API** — Verify a single email address. Charges 1 credit on live keys. Test keys return fixtures and are free.

## Agentic access (1)

- **Sendbridge Com Agentic Access** — 9 operations · 2 acting

## Security (2)

- **Sendbridge Com Authentication** — 1 scheme
- **Sendbridge Com Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Sendbridge Com Plans Pricing**

## Tags

email, verification, api, deliverability, validation, marketing, service

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