https://www.w3.org/TR/webauthn/#idl-index

[SecureContext, Exposed=Window]
interface PublicKeyCredential : Credential {
    [SameObject] readonly attribute ArrayBuffer              rawId;
    [SameObject] readonly attribute AuthenticatorResponse    response;
    AuthenticationExtensionsClientOutputs getClientExtensionResults();
};

partial dictionary CredentialCreationOptions {
    PublicKeyCredentialCreationOptions      publicKey;
};

partial dictionary CredentialRequestOptions {
    PublicKeyCredentialRequestOptions      publicKey;
};

partial interface PublicKeyCredential {
    static Promise<boolean> isUserVerifyingPlatformAuthenticatorAvailable();
};

[SecureContext, Exposed=Window]
interface AuthenticatorResponse {
    [SameObject] readonly attribute ArrayBuffer      clientDataJSON;
};

[SecureContext, Exposed=Window]
interface AuthenticatorAttestationResponse : AuthenticatorResponse {
    [SameObject] readonly attribute ArrayBuffer      attestationObject;
    sequence<DOMString>                              getTransports();
    ArrayBuffer                                      getAuthenticatorData();
    ArrayBuffer?                                     getPublicKey();
    COSEAlgorithmIdentifier                          getPublicKeyAlgorithm();
};

[SecureContext, Exposed=Window]
interface AuthenticatorAssertionResponse : AuthenticatorResponse {
    [SameObject] readonly attribute ArrayBuffer      authenticatorData;
    [SameObject] readonly attribute ArrayBuffer      signature;
    [SameObject] readonly attribute ArrayBuffer?     userHandle;
};

dictionary PublicKeyCredentialParameters {
    required DOMString                    type;
    required COSEAlgorithmIdentifier      alg;
};

dictionary PublicKeyCredentialCreationOptions {
    required PublicKeyCredentialRpEntity         rp;
    required PublicKeyCredentialUserEntity       user;

    required BufferSource                             challenge;
    required sequence<PublicKeyCredentialParameters>  pubKeyCredParams;

    unsigned long                                timeout;
    sequence<PublicKeyCredentialDescriptor>      excludeCredentials = [];
    AuthenticatorSelectionCriteria               authenticatorSelection;
    DOMString                                    attestation = "none";
    AuthenticationExtensionsClientInputs         extensions;
};

dictionary PublicKeyCredentialEntity {
    required DOMString    name;
};

dictionary PublicKeyCredentialRpEntity : PublicKeyCredentialEntity {
    DOMString      id;
};

dictionary PublicKeyCredentialUserEntity : PublicKeyCredentialEntity {
    required BufferSource   id;
    required DOMString      displayName;
};

dictionary AuthenticatorSelectionCriteria {
    DOMString                    authenticatorAttachment;
    DOMString                    residentKey;
    boolean                      requireResidentKey = false;
    DOMString                    userVerification = "preferred";
};

enum AuthenticatorAttachment {
    "platform",
    "cross-platform"
};

enum ResidentKeyRequirement {
    "discouraged",
    "preferred",
    "required"
};

enum AttestationConveyancePreference {
    "none",
    "indirect",
    "direct",
    "enterprise"
};

dictionary PublicKeyCredentialRequestOptions {
    required BufferSource                challenge;
    unsigned long                        timeout;
    USVString                            rpId;
    sequence<PublicKeyCredentialDescriptor> allowCredentials = [];
    DOMString                            userVerification = "preferred";
    AuthenticationExtensionsClientInputs extensions;
};

dictionary AuthenticationExtensionsClientInputs {
};

dictionary AuthenticationExtensionsClientOutputs {
};

dictionary CollectedClientData {
    required DOMString           type;
    required DOMString           challenge;
    required DOMString           origin;
    boolean                      crossOrigin;
    TokenBinding                 tokenBinding;
};

dictionary TokenBinding {
    required DOMString status;
    DOMString id;
};

enum TokenBindingStatus { "present", "supported" };

enum PublicKeyCredentialType {
    "public-key"
};

dictionary PublicKeyCredentialDescriptor {
    required DOMString                    type;
    required BufferSource                 id;
    sequence<DOMString>                   transports;
};

enum AuthenticatorTransport {
    "usb",
    "nfc",
    "ble",
    "internal"
};

typedef long COSEAlgorithmIdentifier;

enum UserVerificationRequirement {
    "required",
    "preferred",
    "discouraged"
};

partial dictionary AuthenticationExtensionsClientInputs {
  USVString appid;
};

partial dictionary AuthenticationExtensionsClientOutputs {
  boolean appid;
};

partial dictionary AuthenticationExtensionsClientInputs {
  USVString appidExclude;
};

partial dictionary AuthenticationExtensionsClientOutputs {
  boolean appidExclude;
};

partial dictionary AuthenticationExtensionsClientInputs {
  boolean uvm;
};

typedef sequence<unsigned long> UvmEntry;
typedef sequence<UvmEntry> UvmEntries;

partial dictionary AuthenticationExtensionsClientOutputs {
  UvmEntries uvm;
};

partial dictionary AuthenticationExtensionsClientInputs {
    boolean credProps;
};

dictionary CredentialPropertiesOutput {
    boolean rk;
};

partial dictionary AuthenticationExtensionsClientOutputs {
    CredentialPropertiesOutput credProps;
};

partial dictionary AuthenticationExtensionsClientInputs {
    AuthenticationExtensionsLargeBlobInputs largeBlob;
};

enum LargeBlobSupport {
  "required",
  "preferred",
};

dictionary AuthenticationExtensionsLargeBlobInputs {
    DOMString support;
    boolean read;
    BufferSource write;
};

partial dictionary AuthenticationExtensionsClientOutputs {
    AuthenticationExtensionsLargeBlobOutputs largeBlob;
};

dictionary AuthenticationExtensionsLargeBlobOutputs {
    boolean supported;
    ArrayBuffer blob;
    boolean written;
};