# SDK methods The full method reference for the SurrealDB Mojo SDK. Most methods in the SurrealDB Mojo SDK are called on an instance of `AsyncSurrealClient` or its blocking wrapper `SurrealClient`. Both expose the same surface. The table below lists documented methods **in alphabetical order** (by page name). ## All methods

Method	Description
`client.api()`	Calls a custom API handler defined on the database
`client.authenticate()`	Authenticates the current connection with a token
`client.begin_transaction()`	Starts a session-scoped transaction, returning a handle
`client.call()`	Runs a SurrealQL function
`client.close()`	Closes the connection
`client.connect()`	Connects to a database endpoint
`client.create()`	Creates a record in the database
`client.delete()`	Deletes all records, or a specific record
`client.health()`	Runs a health check against the server
`client.insert()`	Inserts one or more records into a table
`client.insert_relation()`	Inserts one or more relations into a table
`client.invalidate()`	Invalidates the authentication for the current connection
`client.kill()`	Stops a running live query
`client.live_query()`	Starts a live query on a table
`client.merge()`	Merges data into a record
`client.patch()`	Applies a JSON Patch to a record
`client.query()`	Runs a set of SurrealQL statements against the database
`client.select()`	Selects all records in a table, or a specific record
`client.set()`	Assigns a value as a parameter for this connection
`client.signin()`	Signs in to the database with credentials
`client.signup()`	Signs up to a record-access method
`client.transaction_multi()`	Runs a list of statements as one atomic transaction
`client.unset()`	Removes a parameter for this connection
`client.update()`	Updates all records in a table, or a specific record
`client.upsert()`	Upserts all records in a table, or a specific record
`client.use()`	Switches to a specific namespace and database
`client.version()`	Returns the database version