# Polygon ID

**Canonical:** https://apis.io/providers/polygon-id/  
**Website:** https://www.privado.id/  
**APIs profiled:** 17

Polygon ID (now operating as Privado ID) is a self-sovereign identity platform that enables issuers to create and manage decentralized identifiers (DIDs) and verifiable credentials (VCs) using zero-knowledge proof cryptography. Built on the iden3 protocol and the Polygon blockchain, it allows organizations to issue privacy-preserving credentials — such as KYC attestations, age proofs, and reputation signals — while giving users full control over their identity data. Verifiers can authenticate users and gate access using ZK queries without learning underlying personal information.

## Kin Score — 36.3 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 36.3).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 58.2 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 32.1 (agent-aware)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (17)

- **Polygon ID Verifier SDK** — The Verifier SDK enables web2 and web3 applications to authenticate users based on verifiable credentials without accessing the underlying personal data. Verifiers compose ZK qu...
- **Polygon ID JavaScript SDK** — The JS-SDK enables browser-based applications, extensions, and dApps to implement identity wallet functionality, create and manage DIDs, generate ZK proofs, and interact with th...
- **Polygon ID Wallet SDK (Flutter)** — Flutter plugin for integrating Polygon ID wallet capabilities into mobile applications. Provides identity creation, credential storage, ZK proof generation, and protocol communi...
- **Polygon ID Agent API** — Collection of endpoints related to Mobile
- **Polygon ID Auth API** — The Auth API from Polygon ID — 3 operation(s) for auth.
- **Polygon ID Config API** — The Config API from Polygon ID — 2 operation(s) for config.
- **Polygon ID Connection API** — The Connection API from Polygon ID — 5 operation(s) for connection.
- **Polygon ID Credentials API** — Collection of endpoints related to Credentials
- **Polygon ID Display Methods API** — The Display Methods API from Polygon ID — 2 operation(s) for display methods.
- **Polygon ID Identity API** — Collection of endpoints related to Identity
- **Polygon ID Internal API** — Internal endpoints
- **Polygon ID Key Management API** — Collection of endpoints related to Key Management
- **Polygon ID Links API** — The Links API from Polygon ID — 4 operation(s) for links.
- **Polygon ID Payment API** — The Payment API from Polygon ID — 6 operation(s) for payment.
- **Polygon ID Public API** — Public endpoints for integrators
- **Polygon ID QR Store API** — The QR Store API from Polygon ID — 1 operation(s) for qr store.
- **Polygon ID Schemas API** — The Schemas API from Polygon ID — 2 operation(s) for schemas.

## Agentic access (1)

- **Polygon Id Agentic Access** — 69 operations · 37 acting · 2 human-in-the-loop

## Security (2)

- **Polygon Id Authentication** — http · 1 scheme
- **Polygon Id Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Plans**

## Tags

Identity, Verifiable Credentials, Zero-Knowledge Proofs, Self-Sovereign Identity, Decentralized Identity, Blockchain, Web3, KYC

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