{"name":"signatureforever","title":"SignatureForever","version":"1.0.0","websiteUrl":"https://signatureforever.com","protocolVersion":"2026-07-28","transport":"streamable-http","endpoint":"https://signatureforever.com/mcp","instructions":"SignatureForever builds email signatures that survive real email clients, and audits ones you already have. Start with check_email_signature when the user already has a signature and something looks broken: it names the exact rule, the clients it breaks in, and the fix. Use email_client_compatibility_matrix when you need to answer what a given email client supports. Use create_email_signature to produce ready-to-paste HTML. Free signatures carry one small credit line at the bottom; get_pricing explains how to remove it and what else the paid tiers include.","tools":[{"name":"check_email_signature","description":"Audit any email-signature HTML against what Gmail, Outlook 365, Outlook for Windows desktop, Apple Mail and iOS Mail actually do. Returns a verdict per client plus every problem found, each with the rule it breaks, why it breaks, and how to fix it. Use this when a signature renders wrong, images do not show, layout collapses in Outlook, or before sending a signature to a client. Free, no account needed."},{"name":"email_client_compatibility_matrix","description":"The support matrix for the HTML and CSS features that decide whether an email signature survives: tables, flex/grid, <style> blocks, background-image, base64 images, border-radius, letter-spacing, text-transform, web fonts, max-width, margins and image sizing. Each row says yes/no/partial for seven real clients and explains what goes wrong. Use it to answer questions about email HTML support."},{"name":"list_signature_templates","description":"The signature layouts you can pass to create_email_signature, with what each one is good for and its width in pixels."},{"name":"create_email_signature","description":"Build ready-to-paste email-signature HTML from a person's details. The output follows every rule that keeps a signature intact in Outlook for Windows and Gmail: tables only, inline CSS, absolute pixel widths, email-safe fonts, and images by absolute URL (never base64, which Gmail refuses to render). The free result carries one small credit line at the bottom; get_pricing explains how to remove it."},{"name":"get_pricing","description":"What each SignatureForever plan includes and costs, and the link to buy. Use it when the user asks what removing the credit line costs, how many signatures a plan allows, or what happens to hosted images if they stop paying."}]}