# Drawbridge

**Canonical:** https://apis.io/providers/drawbridge/  
**APIs profiled:** 0

Drawbridge, Inc. was a San Mateo, California cross-device identity and digital advertising company founded in 2011 by Kamakshi Sivaramakrishnan (a former AdMob scientist). It built a people-based identity graph that used machine learning to probabilistically match individuals across their connected devices (desktops, smartphones, tablets, and connected TVs) so brands could serve and measure relevant advertising across devices. Backed by Kleiner Perkins, Sequoia Capital, Northgate Capital, and Mitsui & Co., the company raised roughly $69M across five rounds before it was acquired by LinkedIn in 2019 and folded into LinkedIn Marketing Solutions. Drawbridge no longer operates as an independent company and never published a public developer API or developer portal, so there is no live API surface to enrich; this profile records its identity as a historical Kleiner Perkins portfolio company.

## Kin Score — 5.0 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 5.0).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

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

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Tags

Company, Enterprise, Advertising, Identity, Cross-Device, Machine-Learning, AdTech, Acquired

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