# GrowFast Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## GrowFast

Find companies that fit your product and draft cold emails to the people who decide.

- Record: https://musedirectory.ai/connector/growfast
- Category: Marketing & Ads
- Developer: GrowFast (https://growfast.sh/docs)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 651ms, checked 2026-11-12T08:36:25Z
- Endpoint: https://growfast.sh/api/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-12T08:36:25Z)
- Source: Found in the official MCP Registry (sh.growfast/growfast) https://registry.modelcontextprotocol.io/v0/servers?search=sh.growfast%2Fgrowfast

Connects to GrowFast's B2B outreach service. Muse can read a product site to build an ideal customer profile, score matching companies, draft first emails to named decision-makers, clean an existing contact list, and watch Reddit for people asking for the product. Sending runs on a daily limit.

Example request: "Scan my product site, find ten companies that fit, and draft a first email to the decision-maker at each one."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use GrowFast to help me. It is a free service with an MCP server at https://growfast.sh/api/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- scan_domain: Read a product's website and return its ideal customer profile, a first cold email and the best-fit companies scored 1-10. Takes about 30 seconds.
- import_leads: Clean your own list (CSV text with an email column, optional company, name, website) into leads: drops invalid, duplicate, already-emailed, public-sector, role-mailbox (info@, support@) and no-mail-server addresses, and says why. A list that is mostly unmailable is refused whole.
- get_email_allowance: How many outreach emails are left this month on the plan.
- export_outreach: Everyone this account has emailed, as CSV: email, company, contact, product, subject, delivery, replied, reply category.
- list_sending_domains: The account's sending domains and managed GrowFast address, with remaining sends today.
- list_autopilots: Every autopilot on the account (one per product) with its last result.
- set_autopilot: Create or change the autopilot for one product and turn it on or off. Each day it finds new fits (8/10 or better), writes to the decision-maker and sends within the daily limit.
- send_reply: Send the founder's answer to a prospect who replied, in the same thread, from the address they wrote to.
- list_reddit_monitors: The Reddit monitors on the account, one per product.
- set_reddit_monitor: Set what to listen for on Reddit for one product. Replaces that product's existing monitor settings. GrowFast finds posts where the author needs the product and drafts a reply and DM; the founder posts them.
- list_reddit_matches: Reddit posts found for a product, best first, with drafted replies.
- draft_outreach_emails: For up to 10 companies (for example from scan_domain), find the named decision-maker on each company's own site and write a first email to them. Nothing is sent and nothing is saved: the founder reads and edits the drafts. Takes 10-60 seconds.

Screening checks:
- MCP handshake: pass (Answered in 651ms)
- Domain against threat feeds (Cloudflare security DNS): pass (growfast.sh not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (12 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (autopilot sends cold emails daily without per-message approval; bulk lead import and Reddit outreach could enable spam if misused)