# SAML

**Canonical:** https://apis.io/providers/saml/  
**Website:** https://www.oasis-open.org/standard/saml/  
**APIs profiled:** 3

SAML (Security Assertion Markup Language) is an XML-based open standard for exchanging authentication and authorization data between identity providers and service providers. Ratified as an OASIS Standard in March 2005, SAML 2.0 enables single sign-on (SSO) across different applications and domains, reducing the need for users to manage multiple sets of credentials. It uses XML digital signatures and encryption to secure assertions exchanged between Identity Providers (IdP) and Service Providers (SP).

## Kin Score — 29.5 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 29.5).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 56.8 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 19.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (3)

- **SAML Metadata API** — SAML 2.0 metadata retrieval.
- **SAML SLO API** — SAML 2.0 Single Logout operations.
- **SAML SSO API** — SAML 2.0 Single Sign-On operations.

## Agentic access (1)

- **Saml Agentic Access** — 5 operations · 2 acting

## Plans (1)

- **Saml Plans Pricing**

## Tags

Authentication, Authorization, Federation, Identity Management, Open Standard, Security, Single Sign-On, SSO, XML

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