--- title: "42 tools for AI assistants, one delivery answer, honest claims | Changelog" description: "An assistant connected to the free MCP server can now run 42 of the 55 tools, find the rest, and connect from Claude or ChatGPT in one click. The site now…" url: https://warminboxes.com/changelog/2026-10-21 breadcrumb: "Home > Changelog > 21 October 2026" --- Changelog 21 October 2026 # 42 tools for AI assistants, one delivery answer, honest claims An assistant connected to the free MCP server can now run 42 of the 55 tools, find the rest, and connect from Claude or ChatGPT in one click. The site now gives one answer to how long delivery takes, says what the guarantee actually is, and stopped claiming things the Terms, the tools or other providers contradict; the build fails if those claims come back. ## Tools - Ten more of the free tools can be run by an AI assistant over the MCP server, taking it from 32 of the 55 to 42: the Header Analyzer, DMARC Alignment Checker and Unsubscribe Header Checker (analyze_headers), the Gmail Clipping Checker and Link & Pixel Scanner (analyze_email_html), the DMARC Report Analyzer (analyze_dmarc_report), and the Email Authentication, Domain Reputation, Tracking Domain and Bulk Sender checkers, each as one call. They run the pages’ own code, so an assistant gets the answer the page gives. [/for-ai](https://warminboxes.com/for-ai) - The Claude, ChatGPT, Cursor and other assistant logos on the tools page each open that assistant with a starter prompt, or install the MCP server where the client allows it. [the tools page](https://warminboxes.com/deliverability-tools) ## For AI agents - The free MCP server can now find things, not only check them. find_lead_lists searches the free leads database with the same search the leads page uses; find_tools says which free tool does a job and whether it can be called from the server or only on its page; find_resources searches the guides, playbooks, studies, recipes, videos and inbox guides; get_pricing returns the price list. The server went from 23 tools to 27. [/for-ai](https://warminboxes.com/for-ai) - Every tool result now leads with a credit line in the assistant’s voice, naming the tool and its page (“I used WarmInboxes’ free SPF Checker for this”), and the server asks assistants to repeat it. Lead lists are always handed over as the list page: an assistant is told never to request one for the person. - Claude and ChatGPT connect in one click from the tools page: the Claude link opens its Add custom connector dialog with the name and URL filled in, and ChatGPT’s opens its Plugins page with the URL copied and every form field shown to copy. The server now answers OAuth discovery with a 404, which is what made ChatGPT report it “couldn’t discover OAuth settings” for a server that needs none. [the tools page](https://warminboxes.com/deliverability-tools) - Every one of the 57 tools in the catalogue now has an MCP status, the tool that runs it or the reason it runs only on its page, and the build fails on a tool with neither. ## Pages - October’s placement test is in the log: 135,600 messages scored, 94.47% to the inbox, Google into Google at 94.34% and Azure into Google back at 97.99%. The month count, the message total and the dataset window now derive from the log, so the next month cannot leave a stale seven behind. [the placement log](https://warminboxes.com/research/inbox-placement-log) ## Corrections - The Claude, ChatGPT and Grok inbox pages said our warmup keeps running underneath the agent’s sending. It does not by default: an agent sends but does not warm, so the pages now ask you to tell us the inboxes are going to an agent, and either run an external warmup tool or we keep them in our warmup pool for free. [/claude-inboxes](https://warminboxes.com/claude-inboxes) - The agent, sequencer and partner pages, the product comparison and price.md said replacement inboxes come with every order when deliverability drops. They do not: the 7-day placement replacement guarantee replaces an eligible inbox that misses the placement standard in its first week, and after that what comes with every order is the free deliverability tools. All of them now say so. [price.md](https://warminboxes.com/price.md) - The Tracking Domain Checker read SURBL’s answer from the wrong place, so a tracking domain listed on SURBL was reported as not listed, and its IP blocklist row asked the blacklist lookup the wrong question and only ever said it had not answered. Both are fixed; the Link & Pixel Scanner, which had the same misread and showed every domain as unknown, is fixed with them. [/tracking-domain-checker](https://warminboxes.com/tracking-domain-checker) - Every call through the free MCP server was being counted against one shared daily limit for all assistants everywhere, rather than each caller’s own. Each caller now has their own. [/for-ai](https://warminboxes.com/for-ai) - llms.txt described the verify-email endpoint as SMTP-level verification with catch-all detection. It is syntax, MX, disposable and role checks; no SMTP connection is opened, so a catch-all domain comes back valid. It now says so. [llms.txt](https://warminboxes.com/llms.txt) - The DMARC Checker marked p=none as a failure and p=quarantine as a warning, and the deliverability grade docked p=none, so every cold email domain set up the way Google and Yahoo ask was told it was broken. p=none with reporting now passes: monitoring is enough for broad cold email, and p=quarantine is named as the step for stricter enforcement. The authentication, reputation and bulk sender checkers, the record generator and the offer page now say the same. [/dmarc-checker](https://warminboxes.com/dmarc-checker) - The offer page promised “warm inbox placement guaranteed” while the Terms say inbox placement is not guaranteed. What we guarantee is a replacement: the 7-Day Placement Replacement Guarantee replaces an eligible newly delivered inbox that misses the placement standard in its first seven days, at no charge, and the offer page, price list, comparison data and inbox pages now say that and say placement itself cannot be guaranteed. It also no longer promises new inboxes the same day when infrastructure breaks mid-campaign. [/offer](https://warminboxes.com/offer) - Delivery is stated once. Calls to action across the site still said “send today”, “get live today”, “the day you sign up” and “dropped in the same day” while every order takes 48 to 72 hours. They now say what is true, and a delivery table by product, from one source, is on How It Works, For AI, llms.txt, price.md and facts.json. [the delivery table](https://warminboxes.com/how-it-works#delivery) - The offer page said no other provider offers Azure tenants. Others do; it now says we are one of the few offering prewarmed Google, Microsoft 365 and Azure from one platform. It also no longer says every other provider charges for domains and makes you wait four weeks. [/offer](https://warminboxes.com/offer) - The homepage said “Built and endorsed by” above a list of certifications and partnerships, and llms.txt said “endorsed by” too. None of those companies has endorsed us; they are credentials, and both now say so. [the homepage](https://warminboxes.com/) - The homepage served to crawlers described the Deliverability Checker as testing inbox placement rate. It grades SPF, DKIM, DMARC, MX, blacklist status and domain age; it sends nothing. Inbox placement is what the placement log measures. [/deliverability-checker](https://warminboxes.com/deliverability-checker) - The guide count read 102 in some places and 101 in others. It is 101, counted from the blog registry, and the build now fails if a page says otherwise. A new /facts.json carries every count the site states. [/facts.json](https://warminboxes.com/facts.json) ## Technical - The build now fails on claims the site must not make again: same-day or send-today delivery, “endorsed by” a platform, “not resellers”, a placement guarantee, no other provider, and a placement test where there is none. Each was live once beside its own contradiction. 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