MCP Tool Reference Medium Risk

add-actor

Add an Actor as a new tool for the user to call

Part of the Apify MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@apify/actors-mcp-server Write

WHEN AI AGENTS USE THIS TOOL

AI agents use add-actor to create or modify resources in Apify. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

WHY ENFORCE A POLICY ON ADD-ACTOR

Without a policy, an AI agent could call add-actor repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Apify.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

apify.yaml 
tools:
  add-actor:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Apify policy for all 18 tools.

DETAILS

Tool Name

add-actor

Category

Write

MCP Server

Apify MCP Server

Risk Level

Medium

MORE APIFY TOOLS

search-actors Read
Search for Actors in the Apify Store
fetch-actor-details Read
Retrieve detailed information about a specific Actor
get-actor-output Read
Retrieve the output from an Actor call
get-actor-run Read
Get detailed information about a specific Actor run
get-actor-run-list Read
Get a list of an Actor's runs filterable by status
get-actor-log Read
Retrieve the logs for a specific Actor run
get-dataset Read
Get metadata about a specific dataset
get-dataset-items Read
Retrieve items from a dataset with filtering

View all 18 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the add-actor tool do?

Add an Actor as a new tool for the user to call. It is categorised as a Write tool in the Apify MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add-actor?

Add a rule in your Intercept YAML policy under the tools section for add-actor. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Apify MCP server.

What risk level is add-actor?

add-actor is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add-actor?

Yes. Add a rate_limit block to the add-actor rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block add-actor completely?

Set action: deny in the Intercept policy for add-actor. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides add-actor?

add-actor is provided by the Apify MCP server (@apify/actors-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON APIFY

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Apify policy →