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Pipefire

ai.pipefire/pipefireVersion 1.2.0

Cold email for agencies: SPF, DKIM, DMARC, blacklist checks, plus campaigns and replies.

Status

Responds177 msAnswered our handshake without sign-in.

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Last checked
Nov 14, 2026, 13:32 UTC
Latency
177 ms
Remotes responding
1 of 1
Sign-in
No sign-in
Hosting
Hosted outside the EU (detected)
Registry data as of
Nov 14, 2026, 21:12 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP
https://pipefire.ai/mcpResponds177 ms
No sign-in

Claude Code

claude mcp add --transport http pipefire https://pipefire.ai/mcp

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: pipefire
Remote MCP server URL: https://pipefire.ai/mcp

Cursor

{
  "mcpServers": {
    "pipefire": {
      "url": "https://pipefire.ai/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"pipefire","type":"http","url":"https://pipefire.ai/mcp"}'

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Tools

31 tools

Tools of Pipefire
Read-only
Idempotent
Open world
account_summaryOverview of this Pipefire account: campaigns running, emails sent and replies this month, interested leads, and replies waiting for an answer. Start here.NoYesYesNo
analyze_email_headersRead the raw headers of a received email: SPF, DKIM and DMARC results, alignment, the delivery path and delays. Use when someone pastes headers and asks why a message went to spam or failed authentication.NoYesYesNo
check_bimiCheck a domain's BIMI record (logo in the inbox) and whether its DMARC policy is strict enough for BIMI to show. Returns pass, warn or fail, the record as published, what was found, how to fix it, and a guide link.NoYesYesYes
check_blacklistsCheck whether a domain's sending IPs, or a single IPv4 address, are listed on the major email blacklists (Spamhaus, Barracuda, SpamCop and others). Returns each IP with its result on every list (clean, listed or unknown), totals, and the removal page for each listing.NoYesYesYes
check_cold_emailScore a cold email (subject and body) out of 10 against the rules Pipefire checks its own emails with: length, reading level, the ask, subject line, and spam-filter wording. Returns each issue with why it matters and how to fix it.NoYesYesNo
check_dkimLook up a domain's DKIM public key, trying the selectors Google Workspace, Microsoft 365 and common senders use, plus one you name. Use when mail fails DKIM or to confirm signing is set up. Returns pass, warn or fail, the record as published, what was found, how to fix it, and a guide link. The value is the DKIM record found (shortened if long), or null if no selector matched.NoYesYesYes
check_dmarcCheck a domain's DMARC record: whether one exists at _dmarc, its policy (none, quarantine, reject), whether reports are collected, and outdated tags. Tells you whether the domain can be impersonated by email. Returns pass, warn or fail, the record as published, what was found, how to fix it, and a guide link.NoYesYesYes
check_domain_email_setupCheck whether a domain is set up to send and receive email properly: MX, SPF, DKIM and DMARC in one go, each with pass/warn/fail, what was found, and how to fix it. Use when someone asks why their email goes to spam, whether their domain is set up right, or before sending cold email.NoYesYesYes
check_mta_stsCheck a domain's MTA-STS policy, which forces encrypted delivery of incoming mail: whether the _mta-sts record exists and the policy file loads, and its mode (testing, enforce or none). Returns pass, warn or fail, the record as published, what was found, how to fix it, and a guide link.NoYesYesYes
check_mxList a domain's mail servers (MX records) and which provider handles its email (Google Workspace, Microsoft 365 and others). Use to find who hosts a domain's email or why it cannot receive mail. Returns pass, warn or fail, the record as published, what was found, how to fix it, and a guide link. The value lists the mail servers, highest priority first.NoYesYesYes
check_spfCheck a domain's SPF record: whether it exists, is valid, stays under the 10 DNS lookup limit, and ends with a sensible all mechanism. Use when mail fails SPF or before adding a new sending service. Returns pass, warn or fail, the record as published, what was found, how to fix it, and a guide link.NoYesYesYes
create_campaignWrite a new campaign from a short brief: who to email, where, and what you offer them. Pipefire writes the email sequence (two subject-line versions), starts finding and verifying the businesses, and saves it as a DRAFT. Nothing sends until you launch it. Read it with get_campaign. Takes up to a minute.NoNoNoYes
fleet_statusThe sending domains and mailboxes on this Pipefire account: which are ready, which are warming (and on what day), how many emails a day they can send, and anything paused or broken. Pipefire buys, sets up and warms these for you.NoYesYesNo
generate_dkim_recordFormat a DKIM public key as the TXT record to publish at selector._domainkey.yourdomain. Returns the DNS host and the TXT value to paste, plus any warnings. It does not change DNS.NoYesYesNo
generate_dmarc_recordBuild a valid DMARC TXT record (to publish at _dmarc.yourdomain) from a policy and report addresses.NoYesYesNo
generate_spf_recordBuild a valid SPF TXT record for a domain from the email services it sends with. Returns the DNS host and the TXT value to publish, plus warnings such as nearing the 10-lookup limit. It does not change DNS.NoYesYesNo
get_campaignOne campaign in full: its market, how far it has got (found, verified, contacted, replied, interested), the emails it sends (both subject-line versions of email 1), and a sample of the businesses it will email. Use after create_campaign to read what was written.NoYesYesNo
get_conversationThe full email thread with one prospect: what was sent, what they replied, and the draft answer if one is waiting. Sending the answer is done in the Pipefire console (link included), never from here.NoYesYesNo
get_launch_linkCheck that a draft campaign has its emails and return the link to it in the Pipefire console, where the user reads the emails and presses Launch themselves. This tool changes nothing and sends nothing.NoYesYesNo
get_reply_approval_linkCheck that a draft answer is waiting on a conversation and return the link to it in the Pipefire console, where the user reads it and presses Approve to send it themselves. This tool changes nothing and sends nothing.NoYesYesNo
guess_email_addressesList the likely email address formats for a person at a company domain (first@, first.last@, flast@ ...). Guesses only: verify before sending.NoYesYesNo
lead_sourcingHow far Pipefire has got finding the businesses for one campaign: how many found, how many with an email, how many emails checked, how many owners named, which sources they came from, and the latest businesses found. Use after create_campaign, or when asked how a campaign's list is coming along.NoYesYesNo
list_campaignsEvery campaign on this Pipefire account with its status, market, people contacted, replies, interested leads, meetings and next send. Use the id with pause_campaign or resume_campaign.NoYesYesNo
list_repliesProspect replies that need an answer, oldest first: who, which campaign, what the reply was classified as, a snippet, and whether a draft answer is ready. Use the id with get_conversation.NoYesYesNo
pause_campaignStop a running campaign. Nothing further sends until it is resumed. Replies still arrive. Reversible with resume_campaign.NoNoYesNo
redraft_replyAsk Pipefire to rewrite the draft answer to a prospect, with an instruction such as "shorter", "more casual" or "offer to send the list first". Returns the new draft. It does not send: get the approval link with get_reply_approval_link.NoNoNoNo
request_lead_listWhen a prospect replies yes to a lead list, queue it: local businesses of the types they sell to, around their town, verified, as a spreadsheet and PDF on a private link. Ready in about 30 minutes; the link appears in the conversation and get_conversation. Up to 5 a day.NoNoNoYes
resultsEmails sent, replies, interested leads and meetings booked between two dates (inclusive). Dates are YYYY-MM-DD. Defaults to the last 30 days.NoYesYesNo
resume_campaignRestart a campaign you paused. A campaign Pipefire paused to protect your sending reputation cannot be resumed from here; the answer says why.NoNoYesYes
suggest_sending_domainsSuggest lookalike sending domains for cold email (so the main domain is never put at risk), with live .com/.net availability. Give a business name or its website. Returns the names free to register and the ones already taken.NoYesYesYes
test_subject_lineScore a cold email subject line out of 10: length, wording that hurts opens, and spam trigger words. Returns the score, a verdict, word and character counts, and each problem with why it matters and how to fix it.NoYesYesNo

Details

Registry status
Active
Published
Nov 10, 2026
Updated
Nov 10, 2026
Categories (suggested)
SecuritySuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR
Not declared

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