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IntegrationsAwsActions

Invoke Lambda function asynchronously

Accept a Lambda Event invocation (HTTP 202). Provider acceptance is not function completion; Lambda may retry failures and deliver duplicates, so handlers must be idempotent with a failure destination or DLQ. Payload is JSON text capped at 256 KiB. Unsafe with one SDK attempt and no client dispatch retry. Excluded from MCP. Requires lambda:InvokeFunction.

Agent markdown

lambda.functions.invoke_async · AWS · v1

Details

Risk
Write
Idempotency
Unsafe
Availability
Default
Exposure
REST, SDK
MCP hints
readOnly=false, destructive=false, idempotent=false, openWorld=true

Scopes

  • lambda:InvokeFunction

Input

Input schema
NameTypeRequiredConstraints
(root)objectYesadditionalProperties false
function_namestringYesminLength 1; maxLength 170
payloadstringYesminLength 1; maxLength 262144
regionstringNoenum us-east-1 | us-east-2 | us-west-1 | us-west-2 | af-south-1 | ap-east-1 | ap-east-2 | ap-south-1 | ap-south-2 | ap-southeast-1 | ap-southeast-2 | ap-southeast-3 | ap-southeast-4 | ap-southeast-5 | ap-southeast-6 | ap-southeast-7 | ap-northeast-1 | ap-northeast-2 | ap-northeast-3 | ca-central-1 | ca-west-1 | eu-central-1 | eu-central-2 | eu-west-1 | eu-west-2 | eu-west-3 | eu-north-1 | eu-south-1 | eu-south-2 | il-central-1 | me-central-1 | me-south-1 | mx-central-1 | sa-east-1
qualifierstringNominLength 1; maxLength 128

Output

Output schema
NameTypeRequiredConstraints
(root)objectYesadditionalProperties false
acceptedbooleanYes—
status_codeintegerYesminimum 202; maximum 202

Raw schema

Input
{
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "function_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 170
    },
    "payload": {
      "type": "string",
      "minLength": 1,
      "maxLength": 262144
    },
    "region": {
      "type": "string",
      "enum": [
        "us-east-1",
        "us-east-2",
        "us-west-1",
        "us-west-2",
        "af-south-1",
        "ap-east-1",
        "ap-east-2",
        "ap-south-1",
        "ap-south-2",
        "ap-southeast-1",
        "ap-southeast-2",
        "ap-southeast-3",
        "ap-southeast-4",
        "ap-southeast-5",
        "ap-southeast-6",
        "ap-southeast-7",
        "ap-northeast-1",
        "ap-northeast-2",
        "ap-northeast-3",
        "ca-central-1",
        "ca-west-1",
        "eu-central-1",
        "eu-central-2",
        "eu-west-1",
        "eu-west-2",
        "eu-west-3",
        "eu-north-1",
        "eu-south-1",
        "eu-south-2",
        "il-central-1",
        "me-central-1",
        "me-south-1",
        "mx-central-1",
        "sa-east-1"
      ]
    },
    "qualifier": {
      "type": "string",
      "minLength": 1,
      "maxLength": 128
    }
  },
  "required": [
    "function_name",
    "payload"
  ]
}
Output
{
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "accepted": {
      "type": "boolean"
    },
    "status_code": {
      "type": "integer",
      "minimum": 202,
      "maximum": 202
    }
  },
  "required": [
    "accepted",
    "status_code"
  ]
}

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DetailsScopesInputOutputRaw schema