# PlainID

**Canonical:** https://apis.io/providers/plainid/  
**Website:** https://www.plainid.com/  
**APIs profiled:** 1

PlainID is an enterprise authorization company whose Policy-Based Access Control (PBAC) platform, "The Authorization Platform," controls what identities (human and AI agent) can access, do, and expose across data, APIs, applications, and AI systems. The platform centralizes policy authoring and externalizes runtime access decisions through a Policy Decision Point (PDP), Policy Information Points (PIP), and Policy Authorization Agents. PlainID exposes three public REST API families: Runtime Authorization APIs (permit/deny decisions, policy resolution, user access tokens, PDP cache invalidation), Management APIs (policy, asset-template, application, mapper, and identity-template CRUD plus orchestration and SaaS-vendor management), and Administration APIs (audit events, API client credentials, platform reports). PlainID is backed by Insight Partners.

## Kin Score — 29.1 / 100 (thin)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (+1.5 from 27.6).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 57.1 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

Regulatory layer — **Insurance**: 37.9 (matched via tags).

## Agent readiness — 8.5 (agent-aware)

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

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **PlainID Authorization Platform API** — Runtime Authorization (PDP permit/deny, policy resolution, user access token, cache invalidation), Management (policy/asset/application/mapper/identity CRUD, orchestration, SaaS...

## Security (2)

- **Plainid Authentication** — apiKey/oauth2/http · 3 schemes
- **Plainid Domain Security** — TLSv1.3 · DNSSEC · DMARC

## Tags

Company, Cybersecurity, Authorization, Access Control, PBAC, Identity, Policy Management, API Security

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