Which free tools does AdRails offer?
Each runs entirely in your browser: nothing you enter is sent anywhere. The same checks run for AI agents inside the open-source AdRails MCP server.
Seven controls before an AI agent touches your budget
Seven checks score a Google Ads MCP setup: reviewed plans, fixed caps, validate-only, human approval, audit chain, rollback and a pause-only guard.
Which AI crawlers can read your site?
Paste robots.txt and check whether 18 AI and search crawlers, from GPTBot to Bingbot, may fetch your pages. Findings, verdict, all in your browser.
Postcard QR codes and per-piece tracking codes
Give every postcard its own tracking code and QR code, preview the symbols, and download a manifest CSV, an Avery 5160 label sheet or a page of QRs.
Direct mail holdout calculator
Size a direct mail holdout test, see the smallest lift your list can prove, and split a CSV into mail and holdout files. Runs in your browser.
Direct mail response & cost calculator
Free direct mail calculator: response rate with a 95% Wilson interval, cost per response, cost per lead, cost per client, ROI and break-even lead rate.
Check a Responsive Search Ad before Google does
Validate RSA drafts against Google's limits: headline and description widths, pins, duplicates, ALL-CAPS, punctuation, phone numbers and banned phrases.
Straight answers.
Are the AdRails tools free?
Yes. Every tool on this page is free, needs no account and runs entirely in your browser, so nothing you type or upload is sent to a server. AdRails itself is free open-source software under the Apache-2.0 licence.
Can an AI agent run these checks?
Yes. The same checks are MCP tools inside AdRails, so Claude Code, Cursor or another MCP client can run them on your real accounts and sites: adsops_rsa_validate, aeo_site_audit, mail_codes_assign, mail_qr, mail_holdout_plan, mail_response and more.