# SDK (syntax)

- [Xumm.ping()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.ping.md)
- [Xumm.on(event, fn)](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.on-event-fn.md): Events fired by the SDK per environment. For the order of events, see the section per environment after the table with events.
- [Xumm.off(event, fn)](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.off-event-fn.md)
- [Xumm.helpers { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers.md)
- [ping()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/ping.md): Contact the Xumm platform to check for connectivity and valid auth.
- [getRates( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/getrates.md): Get aggregated exchange rates vs. XRP for most fiat & crypto assets.
- [getRails()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/getrails.md): Fetch the available (known) networks and network parameters.
- [getHookHash( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/gethookhash.md): Get meta information for a known Hook, by specifying the Hook Hash (64 hex chars)
- [getHookHashes()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/gethookhashes.md): Get the meta information for all known Hooks. Object returned contains Hook hash as key, meta as value.
- [getCuratedAssets()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/getcuratedassets.md): Get the curated assets (shortlist in Xumm) for Trust Lines
- [getNftokenDetail( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/getnftokendetail.md): Get NFT Token details. Only available in JWT context. Please fetch your NFT info from other NFT data sources if possible.
- [getKycStatus( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/getkycstatus.md): Get the KYC status for users, based on a user\_token issued by a successful sign request.
- [verifyUserTokens(\[ … \])](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/verifyusertokens.md): Verify a user token (or multiple), to see if the token is still valid (not expired, not revoked) and can be used to deliver sign requests to user(s)
- [getTransaction( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.helpers/gettransaction.md): Fetch an XRPL transaction & metadata. Please don't use this method unless absolutely necessary: please set up your own connection to an XRPL node to fetch this information.
- [Xumm.user { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.user.md): Returns information about the signed in user (in case of xApp or Web3 flow).
- [Xumm.environment { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.environment.md)
- [Xumm.payload { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.payload.md)
- [create( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.payload/create.md)
- [createAndSubscribe( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.payload/createandsubscribe.md)
- [cancel( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.payload/cancel.md)
- [subscribe( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.payload/subscribe.md)
- [get( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.payload/get.md)
- [Xumm.xapp { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp.md)
- [ready()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/ready.md): When using the native Xumm loader screen for your xApp (until your xApp is ready, fully hydrated, booted, etc.) you call this method to remove the Xumm loading screen.
- [openSignRequest({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/opensignrequest.md): Open a Sign Request (payload) created with Xumm.payload.create
- [selectDestination({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/selectdestination.md): Open the Destination Picker: select/find/scan (QR) an XRPL destination account by r-address, slug or PayString
- [scanQr()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/scanqr.md): Scan a QR code
- [tx({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/tx.md): Open the Transaction Details panel
- [close({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/close.md): Close the xApp
- [share({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/share.md): Use the OS Share-dialog to share text or a URL
- [navigate({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/navigate.md): Navigate to another xApp (by identifier)
- [openBrowser({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/openbrowser.md): Open an external URL in the OS default browser
- [on(xAppEvent, fn)](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/on-event-fn.md): Certain events are sent to xApps. These events are usually an asynchronous callback containing data requested by calling one of the xApp UI actions.
- [off(xAppEvent, fn)](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.xapp/off-event-fn.md): Certain events are sent to xApps. These events are usually an asynchronous callback containing data requested by calling one of the xApp UI actions.
- [Xumm.userstore { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.userstore.md): Client side persistent user bound key/value store.
- [list()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.userstore/list.md): List userstore keys
- [get( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.userstore/get.md): Get userstore value (object) by key
- [delete( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.userstore/delete.md): Remove userstore key & value by key
- [set( … , { … } )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.userstore/set-...-....md)
- [Xumm.backendstore { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.backendstore.md)
- [get()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.backendstore/get.md)
- [set({ … })](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.backendstore/set.md)
- [delete()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.backendstore/delete.md)
- [Xumm.push { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.push.md)
- [event( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.push/event.md)
- [notification( … )](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.push/notification.md)
- [Xumm.runtime { … }](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.runtime.md)
- [Xumm.authorize()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.authorize.md)
- [Xumm.logout()](https://docs.xaman.dev/js-ts-sdk/sdk-syntax/xumm.logout.md)


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