Tools

Manage Function URL

Create, update, get, or delete a dedicated HTTPS endpoint (function URL) for a Lambda function. Function URLs provide public API access without needing API Gateway. Supports IAM authentication or open access, and configurable CORS.

Manage Alias

Create, update, get, delete, or list aliases for a Lambda function. Aliases are named pointers to function versions, enabling canary and blue/green deployments via weighted traffic shifting.

Get Account Settings

Retrieve Lambda account-level settings and limits for the configured region, including concurrent execution limits, code storage usage, and total code size.

Delete Function

Delete a Lambda function. Optionally specify a **qualifier** to delete only a specific version (not `$LATEST`). Without a qualifier, the entire function including all versions and aliases is deleted.

Create Function

Create a new Lambda function. Provide the function code via an S3 location, container image URI, or base64-encoded ZIP file. Requires a function name and an IAM execution role ARN at minimum.

Get Function

Retrieve detailed information about a Lambda function including its configuration, code location, concurrency settings, and tags. Supports fetching a specific version or alias using the **qualifier** parameter.

Publish Version

Publish an immutable version from the current `$LATEST` code and configuration. Optionally list all published versions of a function by setting **listOnly** to true.

Manage Recursion Config

Get or set recursive loop detection for a Lambda function. Lambda defaults to terminating detected recursive invocation loops; only use Allow for intentional recursive designs with safeguards.

Invoke Function

Invoke a Lambda function synchronously or asynchronously. **Synchronous** (RequestResponse) returns the function's output. **Asynchronous** (Event) queues the event and returns immediately. Use **DryRun** to validate permissions without executing.

Manage Tags

List, add, or remove tags on a Lambda function. Tags are key-value pairs used for organization, cost allocation, and access control. Provide the full function ARN for tag operations.

Update Function

Update a Lambda function's code and/or configuration. Provide **code** fields to update the deployment package, or **configuration** fields to modify settings like runtime, handler, memory, timeout, environment variables, layers, and VPC. Both can be updated in a single call.

Manage Event Source Mapping

Create, update, get, delete, or list event source mappings that connect Lambda to streaming/queue services (SQS, Kinesis, DynamoDB Streams, Kafka, Amazon MQ). Lambda automatically polls the source and invokes the function.

Manage Permission

Add, remove, or view resource-based policy statements on a Lambda function. These policies grant other AWS accounts or services (e.g., S3, API Gateway, EventBridge) permission to invoke the function.

List Functions

List Lambda functions in the configured AWS region. Returns function names, ARNs, runtimes, and key configuration. Use **maxItems** to control page size and **marker** for pagination.

Manage Layer

Publish, get, delete, or list Lambda layers and their versions. Layers are reusable packages of libraries, dependencies, or custom runtimes that can be attached to functions.

Manage Concurrency

Configure reserved and provisioned concurrency for a Lambda function. **Reserved concurrency** guarantees a set amount of concurrent executions. **Provisioned concurrency** keeps execution environments warm to eliminate cold starts.

Manage Runtime Management

Get or set the runtime update mode for a Lambda function version. Runtime management controls whether Lambda applies runtime patches automatically, on function updates, or pins a manual runtime version ARN.

Manage Durable Execution

Inspect, list, stop, or send callbacks for Lambda durable executions. Durable executions are long-running, stateful workflows that can be checkpointed and resumed. Supports viewing execution history, state, and sending callback signals for human-in-the-loop patterns.

Configure Async Invocation

List, get, set, update, or remove the asynchronous invocation configuration for a Lambda function. Controls retry behavior, maximum event age, and destination routing for successful or failed invocations (to SQS, SNS, Lambda, S3, or EventBridge).