# Audigent

**Canonical:** https://apis.io/providers/audigent/  
**Website:** https://audigent.com/  
**APIs profiled:** 4

Audigent is a data activation, curation and identity platform for digital advertising, acquired by Experian in December 2024 and now operated as part of Experian Marketing Services. Its products include the Hadron ID cookieless identifier, the SmartPMP, ContextualPMP and CognitivePMP private-marketplace suites, a first-party data platform for publishers and advertisers, and the 1st Unit rich-media format. Audigent's public technical surface is not a documented REST developer program: it is a set of live ad-tech identity, segment and analytics endpoints on the ad.gt and hadronid.net domains, reached through first-party open-source Prebid.js modules (hadronIdSystem, hadronRtdProvider, hadronAnalyticsAdapter) that Audigent authors and maintains upstream in the Prebid.js project. Audigent is IAB Europe TCF Global Vendor List vendor 561 and publishes a machine-readable device-storage disclosure.

## Kin Score — 28.4 / 100 (thin)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 28.4).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 0.0 |
| Governance | 12.5 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 43.5 |
| Commercial Clarity | 31.6 |

## Agent readiness — 12.2 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | yes |
| 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 |

## APIs (4)

- **Hadron ID API** — Public, anonymous identity-resolution endpoint that returns Audigent's cookieless Hadron ID (plus hadronIdv2 and the legacy haloId) for the calling browser. Called by the Prebid...
- **Hadron Real-Time Data (RTD) API** — Segment and real-time-data endpoint returning an OpenRTB ortb2 fragment used to enrich a Prebid auction with Audigent audience segments and contextual signals. Backed by the had...
- **Hadron Analytics API** — Analytics collection endpoint for the hadronAnalyticsAdapter Prebid.js analytics adapter. Receives auction lifecycle events (auctionInit, auctionEnd, bidWon and related) keyed t...
- **Audigent Platform API** — Authenticated platform API behind the Audigent admin console. The host is live (gunicorn/Django) but every anonymous request 302s to the admin.audigent.com login, and no public ...

## Security (2)

- **Audigent Authentication** — 2 schemes
- **Audigent Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Audigent Plans Pricing**

## Tags

Company, Advertising, AdTech, Data, Identity, Programmatic, Audience, Marketing, Privacy, Prebid, Header Bidding, Data Curation

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