# Sync API > Sync API is an in-app mobile advertising company that markets an "Enterprise API for the > In-App advertising ecosystem" — a bidder platform for programmatic user acquisition, > LTV forecasting and user re-engagement. As of 2026-08-12 the company publishes NO public > developer program, NO machine-readable API contract, and NO callable API host. ## What this file is Generated by the API Evangelist enrichment pipeline from apis.yml and the artifacts in this repository. Sync API does not serve an llms.txt of its own (https://sync-api.com/llms.txt returned HTTP 404 on 2026-08-12), so this file is a faithful summary of what is publicly observable — not a document authored by the provider. ## What the company says it does - Enterprise API for the in-app advertising ecosystem, aimed at performance marketers. - Claims on the homepage: 50+ countries, "500+ Robust API Integrations", 1.2B+ audience reach. - Product line described as "API Driven": in-app inventory, self-served platforms, programmatic, OEMs and short-video apps. - Services: user acquisition, full-funnel UA with LTV and in-app-event forecasting, dynamic creative optimization, predictive ML targeting, re-engagement with deep links, cross-device partnerships. - Partnerships: programmatic UA and retargeting for advertisers (25+ targeting vectors, 100+ pre-built audience sets); tracking-platform integration for publishers. ## What is actually callable Nothing publicly. Verified 2026-08-12: - https://api.sync-api.com — DOES NOT RESOLVE. Authoritative NXDOMAIN from 8.8.8.8, 1.1.1.1 and 9.9.9.9. There is no API host to call. - No OpenAPI, Swagger, GraphQL, AsyncAPI or MCP contract at any probed location. - No /.well-known/ document of any kind (every path returns the WordPress 404 template). - No SDKs, no CLI, no sandbox, no changelog, no status page, no rate-limit documentation, no published pricing (the /pricing-plans/ page is unmodified WordPress theme demo content). - The only machine-readable surface on the domain is the WordPress core REST API of the marketing site itself (/wp-json/, 268 CMS routes) plus an auth-gated (401) WordPress MCP-adapter route. Neither is the advertising product. ## Public pages - Home: https://sync-api.com/ - About Us: https://sync-api.com/about-us/ - Our Services: https://sync-api.com/our-services/ - Partnerships: https://sync-api.com/partnerships/ - Contact Us: https://sync-api.com/contact-us/ - Contact: support@sync-api.com ## How to actually reach the API Access appears to be relationship-based: the site's only call to action is a "Get in touch" contact form. An agent or developer cannot self-serve here. Contact support@sync-api.com to ask for API documentation, a base URL, and credentials. ## Artifacts in this repository - apis.yml — the APIs.json index for this provider. - well-known/sync-api-well-known.yml — the full discovery probe record (all 404s / NXDOMAIN). - plans/sync-api-plans-pricing.yml — measured: zero published plans. - rate-limits/sync-api-rate-limits.yml — measured: zero published rate limits. - security/sync-api-domain-security.yml — probed TLS/DNS/email-auth posture. - vocabulary/, json-ld/ — catalog-derived vocabulary and JSON-LD context. ## Provenance generated: 2026-08-12 method: generated source: apis.yml + live probes of https://sync-api.com (2026-08-12)