// SCAN REPORT

Marketo MCP Server

27 tools. 11 can modify or destroy data without limits.

2 destructive tools with no built-in limits. Policy required.

Last updated: 30 Jun 2026

11 can modify or destroy data

16 read-only

27 tools total

Community server · catalogue entry checked 30/06/2026

How to control Marketo MCP Server ↓

TOOL MAP

What Marketo MCP Server exposes to your agents

Read (16) Write / Execute (9) Destructive / Financial (2)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

Critical Risk

The most dangerous Marketo MCP Server tools

Destructive · High marketo_delete_channel This tool performs an irreversible deletion of a marketing channel. Destructive · High marketo_delete_lead The tool irreversibly deletes lead data from Marketo. Execute · Medium marketo_send_sample_email This tool triggers an external operation — sending an email — which constitutes executing an action with real-world side effects (email delivery). Write · Medium marketo_remove_lead_from_list Removing leads from a list is a reversible write operation — the leads themselves are not deleted, only their association with the list is removed.

11 of Marketo MCP Server's 27 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Marketo MCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and Marketo MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations

{
  "marketo_delete_channel": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations

{
  "marketo_add_lead_to_list": {
    "limits": [
      {
        "counter": "marketo_add_lead_to_list_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "marketo_get_channel_by_id": {
    "limits": [
      {
        "counter": "marketo_get_channel_by_id_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Marketo MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON MARKETO →

Instant setup, no code required.

FULL CATALOGUE

All 27 Marketo MCP Server tools

DESTRUCTIVE 2 tools

Destructive marketo_delete_channel Delete a channel by ID. Fails if any programs are currently using this channel. Destructive marketo_delete_lead Permanently delete a lead by its numeric ID. This action cannot be undone.

EXECUTE 1 tools

Execute marketo_send_sample_email Send a sample/preview of an email to a specified email address. Optionally render with a specific lead\

WRITE 8 tools

Write marketo_add_lead_to_list Add one or more leads to a static list by list ID. Accepts an array of lead IDs. Max 300 leads per call. Write marketo_approve_form Approve a draft form, making it available for use in landing pages and embeds. Optionally include an approval Write marketo_clone_form Clone an existing form into a destination folder. The cloned form is created in draft status and must be appro Write marketo_clone_program Clone an existing program into a destination folder. Clones all local assets (emails, landing pages, smart cam Write marketo_create_channel Create a new program channel. Channels must have a unique name and type. The type determines which program typ Write marketo_create_or_update_lead Bulk create or update leads (upsert). Accepts an array of lead records with standard and custom fields. Dedupl Write marketo_remove_lead_from_list Remove one or more leads from a static list. Accepts an array of lead IDs. Max 300 leads per call. Write marketo_update_channel Update an existing channel\

READ 16 tools

Read marketo_get_channel_by_id Retrieve a single channel by its numeric ID. Returns the channel definition including progression statuses and Read marketo_get_channels List all program channels in the instance. Channels define the progression statuses available to programs (e.g Read marketo_get_email_by_id Retrieve a single email by its numeric ID. Returns full email metadata including subject, from address, reply- Read marketo_get_emails List email assets in Marketo. Filter by approval status (approved/draft) and paginate with maxReturn/offset. R Read marketo_get_form_by_id Retrieve a single form by its numeric ID. Returns full form metadata including fields, submit button, and than Read marketo_get_forms List forms in the Marketo instance. Filter by approval status (approved/draft) and paginate with maxReturn/off Read marketo_get_lead_activities Fetch activity records for a specific lead. Filter by activity type IDs (e.g., 1=Visit Webpage, 2=Fill Out For Read marketo_get_lead_by_email Look up a lead by email address using the Marketo leads filter API. Optionally specify which fields to return. Read marketo_get_lead_by_id Retrieve a lead by its numeric Marketo ID. Optionally specify which fields to return (defaults to standard fie Read marketo_get_lead_changes Fetch field-change history for a specific lead. Optionally filter to specific field names. Useful for auditing Read marketo_get_lead_lists Get all static lists that a lead belongs to. Supports cursor-based pagination via nextPageToken. Returns list Read marketo_get_program_by_id Retrieve a single program by its numeric ID. Returns full program metadata including channel, status, costs, t Read marketo_get_program_members Get leads that are members of a specific program. Optionally specify which fields to return. Supports cursor-b Read marketo_get_programs List programs in Marketo. Filter by type (filterType: id, programType, folder, tag) with filterValues, or by d Read marketo_get_smart_list_by_id Retrieve a single smart list by its numeric ID. Returns the smart list definition including filter rules and m Read marketo_get_smart_lists List smart lists in the Marketo instance. Paginate with maxReturn (default 200) and offset. Returns smart list

EXPLORE

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

Questions about Marketo MCP Server

Can an AI agent delete data through the Marketo MCP Server MCP server? +

Yes. The Marketo MCP Server server exposes 2 destructive tools including marketo_delete_channel, marketo_delete_lead. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through Marketo MCP Server? +

The Marketo MCP Server server has 8 write tools including marketo_add_lead_to_list, marketo_approve_form, marketo_clone_form. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Marketo MCP Server.

How many tools does the Marketo MCP Server MCP server expose? +

27 tools across 3 categories: Destructive, Read, Write. 16 are read-only. 11 can modify, create, or delete data.

How do I enforce a policy on Marketo MCP Server? +

Register the Marketo MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Marketo MCP Server tool call.

Deterministic rules across all 27 Marketo MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON MARKETO →

Instant setup, no code required.

27 Marketo MCP Server tools catalogued and risk-classified — across an index of 46,500+ MCP servers.

// WHERE THIS COMES FROM

These policies come from Marketo MCP Server's registry record.

The record behind this page: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →