Ad copy limits

Live

Will this headline fit Google RSA, Meta or LinkedIn?

Character counts against published field limits. Does not read spend. Google Ads and Meta Ads reporting stay Coming soon.

Start free Tool reference

Server URL

streamable http

https://toolcargo.com/mcp/ad-copy-limits

Claude Code

terminal

claude mcp add --transport http --scope user toolcargo-ad-copy-limits https://toolcargo.com/mcp/ad-copy-limits \
  --header "Authorization: Bearer YOUR_API_KEY"

Create a key in your dashboard. Other clients: setup guides.

What it helps you do

Chars vs max
Over by N

Built for: Media buyers writing RSA and Meta ads.

Example requests

RSA headline

“Check ad copy field google-headline text Ramadan offers in Riyadh with ToolCargo.”

n / 30, fits or over.

Step-by-step workflows: pre-launch check · fixing link previews

Tools

Tool	What it does	Access
`check_ad_copy` Check ad copy length	Character count vs Google RSA, Meta, LinkedIn or X field limits. Does not talk to the ad networks.	Read-only

Requirements

• A ToolCargo account with Site Audit activated (free).

Limitations

• Pixel wrapping can still truncate. Not connected to Ads Manager.

Supported clients

“Tested” means we connected that client to this endpoint and ran a tool call ourselves. “Documented” means the client supports this setup per its own docs, but we have not tested it yet.

Claude Code	API key header	Tested	Remote HTTP server with an Authorization header. Tested 2026-09-11 (v2.1.268).
Claude (claude.ai)	OAuth sign-in	Tested	Custom connector with OAuth sign-in; tested on claude.ai web 2026-09-11. Desktop and mobile use the same account connectors but were not tested separately.
Cursor	API key header	Documented, not yet tested	mcp.json with url and headers.
VS Code (Copilot agent mode)	API key header	Documented, not yet tested	.vscode/mcp.json with type http and headers.
ChatGPT (developer mode)	OAuth sign-in	Documented, not yet tested	Requires OAuth; API keys cannot be entered.
MCP Inspector	API key header	Tested	CLI mode, tested 2026-09-11. Useful for calling tools directly.

Pricing

Free

For trying the connector on your own sites.

50 calls/month · 25 links per check

Pro

$12/mo

For freelancers and agencies auditing client sites every week.

2,000 calls/month · 100 links per check

Proposed test price. See the pricing page for checkout status.

Full pricing and billing details