Docs · Updated 2026-10-03
Marketing Toolkit — tool reference
Ad maths, ad copy limits, UTM links, WhatsApp links and email checks in one MCP server.
Server URL: https://toolcargo.com/mcp/marketing-kit · Scope: connector:marketing-kit · Included with Site Audit. Calculators and link builders are not counted; parsing a UTM link, ads.txt checks and email checks use one shared call each.
One server, 9 tools. Older single-tool endpoints (for example /mcp/ads-math) stay live for existing keys. Prefer this server so the assistant sees every tool in one place.
What’s inside
These tools are served from this same server; each link has the detailed reference.
- Ad maths: CTR, CPC, CPM, CPA, ROAS from numbers you already have.
- Ad copy limits: Will this headline fit Google RSA, Meta or LinkedIn?
- UTM links: Build and parse campaign URLs so Ads and Analytics agree.
- ads.txt: Who is authorised to sell this site's inventory?
- WhatsApp click-to-chat: A wa.me link with optional text — for ads and bios. Does not send.
- mailto link: A mailto: button with subject and body — does not send.
- SMS segments: How many SMS parts is this Arabic (or English) text?
- Email check: Is this email even able to receive mail?
ad_metrics
CTR, CPC, CPM, CPA, conversion rate and ROAS from spend/impressions/clicks/conversions/revenue. Not connected to Ads Manager.
check_ad_copy
Character count vs Google RSA, Meta, LinkedIn or X field limits. Does not talk to the ad networks.
build_utm_url
Add utm_source, utm_medium, utm_campaign (and optional term/content) to a landing page URL.
parse_utm_url
Read utm_* parameters from a URL and list which of the five campaign fields are missing.
inspect_ads_txt
Fetch public /ads.txt (SSRF-guarded) and count DIRECT vs RESELLER records.
build_whatsapp_link
wa.me URL with an optional pre-filled message. Does not send. WATI send stays Coming soon.
build_mailto
mailto: URL with optional subject, body and cc. Does not send mail.
count_sms_segments
GSM-7 vs UCS-2 segment count. Arabic and emoji use the shorter UCS-2 segments. Does not send.
check_email
Syntax plus MX lookup for the domain. Does not send mail.
Set up Marketing Toolkit
Review connection instructions, required credentials and plan limits before connecting your agent.