# Sync API

**Canonical:** https://apis.io/providers/sync-api/  
**Website:** https://sync-api.com  
**APIs profiled:** 3

Sync API is an enterprise API platform for the in-app mobile advertising ecosystem, delivering performance, transparency, and control for marketers. The platform provides a bidder platform and suite of APIs for user acquisition, mobile user growth, and user re-engagement. It enables data-driven, ROI-focused mobile advertising across 1.2 billion global audiences in 50+ countries, with 500+ robust API integrations and advanced algorithms for LTV forecasting and in-app event conversion tracking.

## Kin Score — 11.6 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 11.6).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 11.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 7.9 |
| Access Clarity | 7.9 |

## Agent readiness — 3.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| 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

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (3)

- **Sync API Platform** — The Sync API bidder platform provides enterprise-grade APIs for the in-app advertising ecosystem. The platform supports real-time bidding (RTB), user acquisition optimization, L...
- **Sync API User Acquisition** — User acquisition API leveraging advanced algorithms to optimize user acquisition strategies for mobile apps. Provides targeting across 1.2B+ global audiences with LTV forecastin...
- **Sync API User Re-Engagement** — Re-engagement API that analyzes behavioral data to identify relevant content for target audiences, enabling advertisers to re-engage lapsed users through personalized in-app adv...

## Security (1)

- **Sync Api Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Sync Api Plans Pricing**

## Tags

Advertising, Digital Marketing, In-App Advertising, Mobile, Programmatic, Real-Time Bidding, User Acquisition

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