# mParticle IDSync API

**Canonical:** https://apis.io/apis/mparticle/idsync-api/  
**Provider:** mParticle — https://apis.io/providers/mparticle/  
**Base URL:** https://identity.mparticle.com/v1  
**Documentation:** https://docs.mparticle.com/developers/apis/idsync/

mParticle IDSync API is one of 6 APIs that [mParticle](https://apis.io/providers/mparticle/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include REST, Identity, IDSync, and MPID. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Identity resolution REST API used to match, link, and modify user identities across devices and channels in mParticle, returning a stable mParticle ID (MPID) for downstream use. Accepts HTTP Basic or an HMAC-SHA256 request digest over the x-mp-key, Date and x-mp-signature headers.

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/mparticle/refs/heads/main/openapi/mparticle-identity-swagger-original.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/mparticle/refs/heads/main/overlays/mparticle-identity-overlay.yaml
- **Documentation** — https://docs.mparticle.com/developers/apis/idsync/

## Other mParticle APIs (5)

- [mParticle Events API](https://apis.io/apis/mparticle/events-api/)
- [mParticle Profile API](https://apis.io/apis/mparticle/profile-api/)
- [mParticle Platform API](https://apis.io/apis/mparticle/platform-api/)
- [mParticle Data Planning API](https://apis.io/apis/mparticle/data-planning-api/)
- [mParticle Warehouse Sync API](https://apis.io/apis/mparticle/warehouse-sync-api/)

## Tags

REST, Identity, IDSync, MPID

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/mparticle/idsync-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/mparticle/.