# TransUnion Verification Service API

**Canonical:** https://apis.io/apis/transunion/transunion-verification-service-api/  
**Provider:** TransUnion — https://apis.io/providers/transunion/  
**Base URL:** https://{hostname}:{port}/{optionalRoutingPath}  
**Documentation:** https://neustar.github.io/tcs-apis/

TransUnion Verification Service API is one of 7 APIs that [TransUnion](https://apis.io/providers/transunion/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Verification Service. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Currently, a RESTful API client is required to provide an 'apiKey' query parameter with a pre-provisioned value to access API calls that are restricted. If the 'apiKey' parameter is not specified, the client IP address may be used as the backup authentication mechanism if pre-provisioned. Three different API entry points are defined for SIP Identity header verification: * Accepts requests in JSON format and produces responses in JSON format * Accepts text messages and produces responses in JSON format * Accepts text messages and produces responses in SIP format

## Operations (3)

| Method | Path | Summary |
|---|---|---|
| POST | `/verify/v2/identityj-j` | Request & Response in JSON Format |
| POST | `/verify/v2/identitys-j` | Text Message & Response in JSON Format |
| POST | `/verify/v2/identitys-s` | Text Message & Response in Text Format |

## Machine-readable artifacts (5)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/transunion/refs/heads/main/openapi/transunion-verification-service-api-openapi.yml
- **Documentation** — https://neustar.github.io/tcs-apis/
- **APIReference** — https://neustar.github.io/tcs-apis/
- **SourceCode** — https://github.com/neustar/tcs-apis
- **Solutions** — https://www.transunion.com/solution/trucontact/branded-communications/trusted-call-solutions

## Other TransUnion APIs (6)

- [TransUnion Global Developer Portal](https://apis.io/apis/transunion/global-developer-portal/)
- [TransUnion TruValidate Device Risk](https://apis.io/apis/transunion/truvalidate-device-risk/)
- [TransUnion Authentication Service API](https://apis.io/apis/transunion/transunion-authentication-service-api/)
- [TransUnion Signing API](https://apis.io/apis/transunion/transunion-signing-api/)
- [TransUnion Verification API](https://apis.io/apis/transunion/transunion-verification-api/)
- [TransUnion Verification Service with Call Validation Treatment (CVT) API](https://apis.io/apis/transunion/transunion-verification-service-with-call-validation-treatment-cvt-api/)

## Tags

Verification Service

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