Anthropic - Atako

Let your agents call Claude models — send messages, count tokens, run batches and manage files on your behalf.

Connection

Authentication: API key (API key (sk-ant-…)).

console.anthropic.com → Settings → API keys → Create Key. Pick the workspace to scope it to, name the key, then copy the value (starts with sk-ant-). No extra scopes needed — a standard API key covers Messages, Batches, Files and Models.See Anthropic’s documentation.

Read actions (9)

Action	Description
`count_message_tokens`	Count how many input tokens a message list uses for a given model, without running it.
`download_file`	Download the raw content of an uploaded or Claude-generated file.
`get_file`	Fetch metadata for an uploaded file (filename, size, MIME type).
`get_message_batch`	Fetch a message batch, including its processing status and request counts.
`get_model`	Fetch a model by ID or alias (display name, creation date).
`list_files`	List files uploaded to the workspace via the Files API.
`list_message_batch_results`	Fetch the results of an ended message batch (JSONL, one result per request).
`list_message_batches`	List message batches in the workspace, most recent first.
`list_models`	List the Claude models available to the API key.

Write actions (5)

Action	Description
`cancel_message_batch`	Cancel a message batch that is still processing.
`create_message`	Send a conversation to a Claude model and get its reply (non-streaming).
`create_message_batch`	Submit a batch of Messages API requests for async processing at 50% cost.
`delete_file`	Permanently delete an uploaded file.
`delete_message_batch`	Delete an ended message batch and its results.

Permissions

Every action above must be explicitly granted to an agent before it can be used. See Permissions for the grant model and Security for how credentials are protected.