ActionAnthropicUpdated September 2026

How do I run Claude messages in a batch?

Short answer: You can create message batch in Anthropic by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Anthropic Create Message Batch action to a workflow, map its 4 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Create Message Batch in Anthropic — start free
Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

FieldTypeRequiredDescription
Model
model
optionsRequiredModel. Options: Claude Sonnet 4.6, Claude Opus 4.6, Claude Haiku 4.5
Prompt
prompt
stringRequiredThe prompt to send to each item in the batch
Max Tokens
max_tokens
stringOptionalMax Tokens
Custom ID
custom_id
stringRequiredYour unique ID for this batch request
Sample request
{
"model": "{{trigger.model}}",
"prompt": "{{trigger.prompt}}",
"max_tokens": "{{trigger.max_tokens}}",
"custom_id": "e.g. request-001"
}
Returns
{
"id": "batch_abc123",
"type": "message_batch",
"request_counts": {
"errored": 0,
"expired": 0,
"canceled": 0,
"succeeded": 0,
"processing": 1
},
"processing_status": "in_progress"
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Create Message Batch.

Any of these apps can fire this action as part of a workflow.

FAQ

Questions about Create Message Batch.

What does the Create Message Batch action do in Anthropic?
Creates a batch of messages for async processing on the Messages API, with a 50% cost reduction and up to 24-hour turnaround. Perfect for bulk classification, summarization, or labeling jobs.
What inputs does Create Message Batch require?
Required: Model, Prompt, Custom ID. Every input accepts a static value or a variable from any upstream node in your workflow.
Can I use dynamic inputs from earlier workflow nodes?
Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.
What happens if Anthropic returns an error?
The run history shows the failed step with its input and the error message Anthropic returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.
Does Create Message Batch support batch operations?
Run Create Message Batch inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Anthropic's rate limits.
More actions

Other Anthropic actions.

Create Message Batch in Anthropic — start free