Ciro Cesar Maciel — Free Tools
Free, no sign-in: favicons, web to Markdown, CSV to chart, text to speech, time zones, passwords.
| Endpoint | https://mcp.tools.ciromaciel.click (streamable-http) |
|---|---|
| Registry version | 0.2.0 |
| Now | 9 tools · grade F (45) · pin ts_87a63aa3515d2e461bff8c92c57e6bff · protocol 2025-06-18 |
| First / last listed | 2026-10-26 00:48 UTC / 2026-10-26 00:48 UTC |
| Grade over time | 2026-10-26: F (45), 9 tools |
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Tools: receive_email mindmaps generate_password compare_timezones data_to_chart text_to_speech generate_favicon generate_background web_to_markdown
receive_email | Creates or opens a disposable, receive-only email inbox and reads what arrived — to sign up somewhere and get the verification code or confirmation link without using the user's real address.
WHEN TO USE: a site or service asks for an email to send a code, a magic link or a confirmation, and the user does not want to give their own; or you need to read what was sent to an inbox created earlier.
params: inbox, waitSeconds, message |
mindmaps | Create and edit mind maps from an outline or a project file. Export PNG, SVG and PDF, save locally and share a link. No account required. params: outline, project |
generate_password | Generates a strong random password with a cryptographically secure generator.
WHEN TO USE: the user asks for a password or a random key.
HOW IT WORKS: always uses upper and lower case letters; numbers and symbols are optional. Each selected kind of character appears at least once. length: 8 to 64 (default 16).
RETURNS: password, the options used, and link — this tool's web page with the same op params: length, numbers, symbols |
compare_timezones | Converts one moment across several time zones, daylight saving time included.
WHEN TO USE: "what time is it in…", scheduling a meeting across cities, checking whether a time falls at night or on another day somewhere.
HOW IT WORKS:
- zones: IANA time zone names in Area/City form — America/Sao_Paulo, Europe/Lisbon, Asia/Tokyo, UTC. Not city names alone, abbreviations (EST, BRT) or offsets (GMT-3) params: zones, date, hour, format |
data_to_chart | Draws a chart from a CSV table and returns it as an image.
WHEN TO USE: the user wants to see data as a chart, or needs a chart image for a document, a README, a slide or a chat.
HOW IT WORKS:
- csv: a header row, then data rows. First column: the category (or x value); the next columns: numbers. Use a comma or semicolon as separator; decimals with a point, or with a comma when the separator is params: chartType, csv*, title |
text_to_speech | Reads a text aloud in a natural Portuguese voice from Fish Audio — Rafael by default, or one of six others — and returns an MP3.
WHEN TO USE: the user wants to hear a Portuguese text or needs an audio file of it — narration, audiobook, lesson, voice-over, a message read aloud. The voices speak Portuguese (Brazil, and Tomás from Portugal); a text in another language is read with their accent.
HOW params: text*, voice, speed |
generate_favicon | Generates a complete favicon set from 1 to 3 characters (initials) or one emoji.
WHEN TO USE: the user needs a favicon, tab icon, apple-touch-icon or web app icon for a website or web app, or the project still has a framework's default icon. PRIORITY: if the host also provides open_favicon_editor, call that editor first for every normal favicon request (create, preview, adjust or download). Use t params: mode, text, emoji, font, weight, size, margin, shape, background, color, adaptive, framework |
generate_background | Draws a background or wallpaper at the exact size of a place: YouTube banner, Instagram story, LinkedIn cover, desktop up to 4K here (8K on the web page), phones, video calls, slides.
WHEN TO USE: the user wants a background, wallpaper, cover or banner image for a channel, profile, screen or presentation, or asks what size one of these must be.
HOW IT WORKS: pick `format` (70 places, each with i params: format, style, colors, seed, scale, grain, angle, width, height |
web_to_markdown | Fetches a public web page and returns its content as clean Markdown.
WHEN TO USE: you need to read a page — documentation, an article, a product page — to answer, summarize or quote it; or the user wants a page as Markdown.
HOW IT WORKS:
- url: a public http(s) address. Private networks, localhost and addresses with credentials are refused.
- Reads the HTML the server sends (like a simple browse params: url*, pages, onlyMainContent |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.