Find B2B customers for a product: score matching companies, draft emails, listen on Reddit.
Connect Remote server
claude mcp add --transport http growfast https://growfast.sh/api/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"growfast": {
"url": "https://growfast.sh/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"growfast": {
"type": "http",
"url": "https://growfast.sh/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://growfast.sh/api/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 12 found in our last check
scan_domainRead 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_leadsClean 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_allowanceHow many outreach emails are left this month on the plan.
export_outreachEveryone this account has emailed, as CSV: email, company, contact, product, subject, delivery, replied, reply category.
list_sending_domainsThe account's sending domains and managed GrowFast address, with remaining sends today.
list_autopilotsEvery autopilot on the account (one per product) with its last result.
set_autopilotCreate 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 real email within the daily limit; sent email cannot be recalled.
send_replySend the founder's answer to a prospect who replied, in the same thread, from the address they wrote to. Delivers real email that cannot be recalled.
list_reddit_monitorsThe Reddit monitors on the account, one per product.
set_reddit_monitorSet 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_matchesReddit posts found for a product, best first, with drafted replies.
draft_outreach_emailsFor up to 10 companies 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.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. Leave empty to sign in with OAuth. Or send a GrowFast API key as 'Bearer sk_live_...' (Settings > API keys). |
Details
| Endpoint | https://growfast.sh/api/mcp (Streamable HTTP) |
| First published | 12 Nov 2026 |
| Last updated | 12 Nov 2026 |
| Registry name | sh.growfast/growfast |
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