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Marketing tools

UTM Builder

You need a shareable landing URL that Analytics and ads platforms can attribute to a campaign.

Campaign workspace

UTM Builder

Structured inputs and readable results — copy URLs, scan limits, and review findings without digging through JSON.

Final destination page (https preferred).

Optional

Optional

Results

Waiting

Results appear here

Fill the form and run the tool — outputs are structured cards, not a raw JSON dump.

Free · API · MCPToolYour platform

Use UTM Builder three ways

The free UTM Builder on this page works in your browser. The same workflow is available via REST API for apps and via MCP for Cursor, Claude, and other agents — one API key, one plan, one quota. This tool is part of the marketing-apis module under Marketing Tools.

  • Free in browserUse UTM Builder here — no account required.
  • REST APICall from your server with X-Api-Key.
  • MCP for agentsConnect Cursor or Claude to ToolYour MCP with the same key.
  • 1. Get an API keySign in and open Dashboard → API Keys (works for REST and MCP).
  • 2. Call or connectUse the REST API from your server, or paste the MCP URL into your agent config.
  • 3. Same qualityOutput matches the free web tool across all three surfaces.
Manage API keysMCP setupAPI referenceCreate free account

What is UTM Builder?

You need a shareable landing URL that Analytics and ads platforms can attribute to a campaign. ToolYour UTM Builder takes a base URL plus required utm_source, utm_medium, and utm_campaign (optional term, content, id), merges them onto the query string, and returns the tagged URL with naming warnings when values are not lowercase-hyphen. It does not create ads, short links, or GA properties. Same route via REST and MCP (POST /api/v1/marketing-apis/utm-builder).

What are common questions about UTM Builder?

Which UTM parameters are required?

utm_source, utm_medium, and utm_campaign are required. Optional: utm_term, utm_content, utm_id.

Why am I getting naming warnings?

Values with spaces, uppercase, or underscores fail the lowercase-hyphen convention check. Prefer spring-sale over Spring_Sale. Use UTM Naming Convention Checker to audit existing links.

Does this shorten the URL?

No. It only appends UTM query params to your base URL. Pair with QR Code Generator for print, or your own shortener if needed.

What are the key features of UTM Builder?

Core + optional UTMs

Source, medium, campaign required; term, content, and id optional on one form.

Convention warnings

Flags non–lowercase-hyphen values so Analytics reports stay consistent.

API and MCP

POST body with baseUrl and utm_* — same credit path agents use.

How do you use UTM Builder?

Paste the landing URL

Use the final destination page (https preferred).

Fill source, medium, campaign

Match your naming doc (e.g. newsletter / email / march-launch).

Copy the tagged URL

Drop into ads, email, or social; fix any naming warnings first.

Why this tool exists

Hand-typing UTM strings into a URL bar is how tracking breaks: a missed utm_medium, a stray capital letter, or a duplicated question mark and the click lands in Analytics as “(not set)” or as three different campaigns instead of one. UTM Builder exists so the tagged URL comes out correct the first time, from a short form instead of a text editor.

Problems it solves

Concrete failure modes this replaces:

  • Missing required params (utm_source/utm_medium/utm_campaign) that silently drop attribution
  • Manually concatenated URLs with double ? or duplicated query keys
  • Mixed casing and spacing across team members tagging the same campaign differently
  • No warning before a link ships that it violates your naming convention

Common use cases

  • Agency: building a client-ready tracked link before handoff, so the client's Analytics rolls up cleanly by channel.
  • In-house marketer: tagging a podcast or newsletter placement before it goes into a media kit or ad order.
  • Pre-launch checklist: locking the canonical campaign URL before creative freeze so every asset points to the same tagged link.
  • QA before spend: confirming source/medium/campaign are present and lowercase-hyphen before a paid campaign goes live.
  • Agent/MCP: an agent building a tracked link inside a playbook step without a human copy-pasting into a spreadsheet.

Honest scope

This tool builds and lightly validates a query string — it does not shorten URLs, does not check that the destination page loads, and does not push anything into Google Analytics or an ad account. For an existing link, use UTM Parser; for a batch of campaigns, use UTM Bulk Builder; for platform macros, use Ads UTM Builder.

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