# TransUnion

**Canonical:** https://apis.io/providers/transunion/  
**Website:** https://www.transunion.com/  
**APIs profiled:** 3

A global information and insights company providing credit reporting, risk, fraud, and identity solutions. One of the three largest consumer credit bureaus in the United States, serving businesses and consumers across multiple international markets. Its credit and TruValidate decisioning APIs are contract-gated, but its TruContact Trusted Call Solutions business — acquired with Neustar in December 2021 — publishes an open, MIT-licensed OpenAPI for the STIR/SHAKEN call authentication and verification service.

## Kin Score — 29.0 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 29.0).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 52.4 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 23.2 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Telecommunications**: 31.9 (matched via tags).

## Agent readiness — 40.8 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Contract only — onboarding: unknown, pricing: unknown, trial: no (confidence: high).

## APIs (3)

- **TransUnion TruContact Trusted Call Solutions (STI-AS / STI-VS)** — The STIR/SHAKEN call Authentication Service and Verification Service behind TransUnion TruContact Branded Communications. Nine POST operations sign SIP Identity headers (PASSpor...
- **TransUnion Global Developer Portal** — TransUnion's API products for credit reporting, identity verification, fraud prevention and consumer risk decisioning. Access requires a business agreement with TransUnion and c...
- **TransUnion TruValidate Device Risk** — Device recognition and fraud signals, formerly iovation FraudForce. Mobile SDKs collect a device "blackbox" that is submitted to a risk check from your servers. The API host api...

## Security (3)

- **Transunion Authentication** — apiKey/ip-allowlist/mutualTLS · 3 schemes
- **Transunion Domain Security** — TLSv1.3 · DMARC
- **Transunion Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Plans (1)

- **Transunion Plans Pricing**

## Tags

Financial, Credit Reporting, Risk, Identity, Fraud, Marketing, Telecommunications, Call Authentication, STIR/SHAKEN

---

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