Polygon ID
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.
Polygon ID publishes 14 APIs on the APIs.io network, including Agent API, Auth API, Config API, and 11 more. Tagged areas include Identity, Verifiable Credentials, Zero-Knowledge Proofs, Self-Sovereign Identity, and Decentralized Identity.
The Polygon ID catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
Polygon ID’s developer surface includes authentication, documentation, engineering blog, YouTube channel, support, and 8 more developer resources.
Kin Score
APIs 17
Individual APIs this provider publishes, each with its own machine-readable definition.
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.
Scroll for all 17
Pricing Plans 1
Published pricing tiers and plan structures.
Plans
PLANSRate Limits 1
Documented rate limits and quota policies.
Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Finops
FINOPSSemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Polygon Id Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Polygon ID API Rules
SPECTRALJSON Schema 91
Standalone JSON Schema definitions for this provider's data models.
AgentResponse
JSON SCHEMAAuthenticationConnection
JSON SCHEMAAuthenticationResponse
JSON SCHEMABasicMessage
JSON SCHEMAConnectionsPaginated
JSON SCHEMACreateAuthCredentialRequest
JSON SCHEMACreateConnectionRequest
JSON SCHEMACreateCredentialRequest
JSON SCHEMACreateCredentialResponse
JSON SCHEMACreateDisplayMethodRequest
JSON SCHEMACreateIdentityRequest
JSON SCHEMACreateIdentityResponse
JSON SCHEMACreateKeyRequest
JSON SCHEMACreateKeyResponse
JSON SCHEMACreateLinkRequest
JSON SCHEMACreatePaymentRequestResponse
JSON SCHEMACreatePaymentRequest
JSON SCHEMACredentialLinkQrCodeResponse
JSON SCHEMACredentialOfferResponse
JSON SCHEMACredentialSchema
JSON SCHEMACredentialSubject
JSON SCHEMACredential
JSON SCHEMACredentialsPaginated
JSON SCHEMADisplayMethodEntity
JSON SCHEMADisplayMethodPaginated
JSON SCHEMADisplayMethod
JSON SCHEMAEncryptedVC
JSON SCHEMAGenericErrorMessage
JSON SCHEMAGenericMessage
JSON SCHEMAGetAuthenticationConnectionResponse
JSON SCHEMAGetConnectionResponse
JSON SCHEMAGetConnectionsResponse
JSON SCHEMAGetIdentitiesResponse
JSON SCHEMAGetIdentityDetailsResponse
JSON SCHEMAGetPaymentRequestsResponse
JSON SCHEMAHealth
JSON SCHEMAIdentityState
JSON SCHEMAImportSchemaRequest
JSON SCHEMAIssuerDescription
JSON SCHEMAKey
JSON SCHEMAKeysPaginated
JSON SCHEMALinkSimple
JSON SCHEMALink
JSON SCHEMANetworkData
JSON SCHEMAOffer
JSON SCHEMAPaginatedMetadata
JSON SCHEMAPaymentOptionConfigItem
JSON SCHEMAPaymentOptionConfig
JSON SCHEMAPaymentOptionRequest
JSON SCHEMAPaymentOption
JSON SCHEMAPaymentOptionsPaginated
JSON SCHEMAPaymentOptions
JSON SCHEMAPaymentRequestInfo
JSON SCHEMAPaymentStatus
JSON SCHEMAPaymentVerifyRequest
JSON SCHEMAPaymentsConfiguration
JSON SCHEMAPublishIdentityStateResponse
JSON SCHEMARefreshService
JSON SCHEMARevocationStatusResponse
JSON SCHEMARevokeClaimResponse
JSON SCHEMASchema
JSON SCHEMAStateStatusResponse
JSON SCHEMAStateTransaction
JSON SCHEMAStateTransactionsPaginated
JSON SCHEMAStateTransactions
JSON SCHEMASupportedNetworks
JSON SCHEMATimeUTC
JSON SCHEMAUpdatePaymentOptionRequest
JSON SCHEMAUUIDResponse
JSON SCHEMAUUIDString
JSON SCHEMABody
JSON SCHEMACallbackResponse
JSON SCHEMAGenericErrorMessage
JSON SCHEMAHealth
JSON SCHEMAJWZMetadata
JSON SCHEMAJWZProofs
JSON SCHEMAQRCode
JSON SCHEMAQRStoreRequest
JSON SCHEMAQRStoreResponse
JSON SCHEMAQuery
JSON SCHEMAScopeParams
JSON SCHEMAScopeRequest
JSON SCHEMAScope
JSON SCHEMASignInRequest
JSON SCHEMASingInResponse
JSON SCHEMAStatusResponse
JSON SCHEMATransactionDataResponse
JSON SCHEMATransactionData
JSON SCHEMAUUID
JSON SCHEMAVerifiablePresentation
JSON SCHEMAVerifiablePresentations
JSON SCHEMAScroll for all 91
Examples 13
Example request and response payloads for these APIs.
Scroll for all 13
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 1
Status, limits, changes, and where to get help
Company 4
The organization behind the API
Other 1
Properties that don't map to a standard resource type