MCP server

Heffl Free Tools Official

com.heffl/free-tools

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Free email verification, business calculators, UAE estimates and drafts. No API key.

Website

At a glance

Type

MCP server

Publisher

heffl.com (verified by the MCP Registry)

Status

Working at last check

Tools

15

Token cost

About 3,707 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http free-tools https://api.heffl.com/api/public-tools/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.free-tools]
url = "https://api.heffl.com/api/public-tools/mcp"

Gemini CLI

{"mcpServers":{"free-tools":{"httpUrl":"https://api.heffl.com/api/public-tools/mcp"}}}

Cursor

{"mcpServers":{"free-tools":{"url":"https://api.heffl.com/api/public-tools/mcp"}}}

VS Code

{"servers":{"free-tools":{"type":"http","url":"https://api.heffl.com/api/public-tools/mcp"}}}

Antigravity

agy mcp add free-tools https://api.heffl.com/api/public-tools/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"free-tools","server_url":"https://api.heffl.com/api/public-tools/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"free-tools","server_url":"https://api.heffl.com/api/public-tools/mcp"}

Tools

• agency_pricing ~211 tokens
  Calculate project price from labor, overhead and risk buffer. margin is percentage of selling price; overhead and riskBuffer are percentage additions. Free, no authentication required. Rate limited.
• business_days ~309 tokens
  Count weekdays between dates or add/subtract days. UTC dates, Monday–Friday; start included and end excluded unless includeEnd. Offset excludes start. Public holidays are not excluded. Free, no authentication required. Rate limited.
• coaching_agreement ~391 tokens
  Generate the website's coaching agreement as plain text. Missing text fields use placeholders. Draft only; legal review may be needed. Free, no authentication required. Rate limited.
• email_verify ~162 tokens
  Check one email's syntax, mail routing, disposable/free-provider/role flags, and SMTP recipient acceptance. Sends no email. DNS alone does not verify a mailbox. unknown means inconclusive or mailbox not checked; likely_deliverable is evidence, not a delivery guarantee. No login or API key required.
• freelance_rate ~247 tokens
  Calculate sustainable rates. margin is a percentage buffer added to annual income plus overhead, matching the website. All money must use the same currency. Free, no authentication required. Rate limited.
• photography_pricing ~263 tokens
  Calculate session price, costs, profit and per-photo price. Margin is a percentage of selling price; currency-neutral, no conversion. Free, no authentication required. Rate limited.
• quotation_generate ~354 tokens
  Generate quotation JSON and plain-text draft with percentage discounts per item and tax on discounted amounts. Does not save, send, or render PDF; website provides visual export. Currency is a label, no FX conversion. Free, no authentication required. Rate limited.
• retainer_agreement ~361 tokens
  Generate the website's monthly retainer agreement as plain text. Missing text fields use placeholders. Draft only; legal review may be needed. Free, no authentication required. Rate limited.
• risk_assessment ~219 tokens
  Score user-supplied risks using likelihood × impact (1–5). Low <=6, medium <=14, high >=15. Does not infer likelihood or impact. Free, no authentication required. Rate limited.
• sow_generate ~252 tokens
  Generate a scope-of-work draft using the existing Heffl DeepSeek service. Returns untrusted HTML, not legal advice. Drafts may infer details; verify before use. Provider configuration required server-side. Free, no authentication required. Rate limited.
• uae_corporate_tax ~149 tokens
  Estimate standard UAE corporate tax on already-adjusted taxable income in AED: 0% up to 375000 and 9% above. Does not determine deductions, free-zone rules, relief or multinational minimum tax. Free, no authentication required. Rate limited.
• uae_gratuity ~219 tokens
  AED estimate for covered private-sector full-time foreign workers using monthly basic salary, at least one year service, 21 days for first five years then 30; capped at 24 months basic salary. Assumes continuous service without unpaid leave; no deductions or alternative schemes assessed. Free, no au
• uae_real_estate_vat ~234 tokens
  Estimate VAT on ordinary commercial/residential property in AED, not transfer fees. Residential zero-rating requires FIRST supply within three years of completion; other residential supply exempt. No mixed-use or specialist properties. Free, no authentication required. Rate limited.
• uae_vat ~132 tokens
  Estimate standard 5% UAE VAT in AED, inclusive or exclusive. Does not classify exempt or zero-rated supplies. Free, no authentication required. Rate limited.
• whatsapp_generate Sends messages · ~204 tokens
  Generate a business WhatsApp message draft using Heffl's DeepSeek service. Only drafts text; never sends messages. Provider configuration required server-side. Free, no authentication required. Rate limited.

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