# SparkPost

**Canonical:** https://apis.io/providers/sparkpost/  
**Website:** https://www.sparkpost.com/  
**APIs profiled:** 12

SparkPost (now part of Bird) is the world's leading email delivery platform, providing a REST API for sending transactional and marketing emails, managing templates, tracking analytics, handling suppressions, and processing inbound email. Trusted by enterprises such as The New York Times, Adobe, and Zillow, SparkPost delivers billions of emails daily with advanced analytics, A/B testing, and real-time event streams via webhooks.

## Kin Score — 43.9 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 43.9).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 66.9 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 42.1 |
| Developer Ergonomics | 26.2 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 25.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

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

## APIs (12)

- **SparkPost DKIM Keys API** — The DKIM Keys API from SparkPost — 3 operation(s) for dkim keys.
- **SparkPost Events API** — The Events API from SparkPost — 4 operation(s) for events.
- **SparkPost Inbound Domains API** — The Inbound Domains API from SparkPost — 2 operation(s) for inbound domains.
- **SparkPost Metrics API** — The Metrics API from SparkPost — 17 operation(s) for metrics.
- **SparkPost Recipient Lists API** — The Recipient Lists API from SparkPost — 2 operation(s) for recipient lists.
- **SparkPost Relay Webhooks API** — The Relay Webhooks API from SparkPost — 3 operation(s) for relay webhooks.
- **SparkPost Sending Domains API** — The Sending Domains API from SparkPost — 3 operation(s) for sending domains.
- **SparkPost Subaccounts API** — The Subaccounts API from SparkPost — 3 operation(s) for subaccounts.
- **SparkPost Suppression List API** — The Suppression List API from SparkPost — 3 operation(s) for suppression list.
- **SparkPost Templates API** — The Templates API from SparkPost — 4 operation(s) for templates.
- **SparkPost Transmissions API** — The Transmissions API from SparkPost — 2 operation(s) for transmissions.
- **SparkPost Webhooks API** — The Webhooks API from SparkPost — 6 operation(s) for webhooks.

## Agentic access (1)

- **Sparkpost Agentic Access** — 79 operations · 34 acting

## Security (3)

- **Sparkpost Authentication** — apiKey · 1 scheme
- **Sparkpost Domain Security** — TLSv1.3 · HSTS · DMARC
- **Sparkpost Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Plans (1)

- **Sparkpost Plans Pricing**

## Tags

Email, Transactional Email, Marketing Email, Email Delivery, SMTP, Webhook, Analytics, Templates, Suppression List

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