email59

MCP server · hosted · v0.5.0 · com.email59/email59

Online · tested 2h agoNEW · 3h agoSeen in the registry 2h ago

Send transactional email from AI agents: sign up by email code, no domain or DNS setup.

What it does

email59 is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES

Local installNO

Live checkOnline · 20 tools

Version0.5.0

PriceNot in the registry

First seen24 Oct 2026

Last checked2h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)

Hosted endpoint

https://email59.com/v1/mcp streamable-http

In Claude Code: claude mcp add --transport http email59 https://email59.com/v1/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "email59": {
      "url": "https://email59.com/v1/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 2h ago

ONLINE email59 answered an MCP connection on 24 Oct 2026 and introduced itself as email59 0.5.0 (MCP protocol 2025-06-18).

20 tools offered to AI assistants

auth · Sign up or sign in to email59. Pass email to have a 6-digit code emailed, then call again with email and otp to get a session key (a new email is signed up with 200 free emails a day). Or pass api_key to swap an API key for a session key. S
get_pricing · Free daily emails (renewed every day), email credits per dollar, and the packs on sale. No sign-in needed.
get_account · The signed-in account: email, daily_limit, sent_today, remaining_today, credits_remaining, resets_at.
update_account · Set the name, company or brand (the look of every email the account sends) on the account.
send_email · Send one email to one recipient: transactional (receipt, code, alert) or marketing (category). It goes out as HTML in a branded template with a text part; give text, html or both. Uses 1 email of today's allowance. Many recipients at once:
send_campaign · Send a marketing email to up to 1,000 recipients; the unsubscribe link is added for you. Invalid, role, blocked or unsubscribed recipients are skipped and cost nothing; each accepted recipient uses 1 email of today's allowance. A campaign t
check_email · Free deep check of an email address, no sign-in needed: format, provider username rules, disposable and role addresses, and the domain's MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT and BIMI records. Returns a report with a score (0-99, likelihoo
check_list · List check for a mailing list: up to 1,000 different addresses a call, as emails or the text of a CSV (the column headed email). One status each: valid, risky, role, disposable, no_mx or invalid, with a reason, plus counts per status. Forma
validate_email · Check an address before sending. Verdicts: ok, invalid, no_mx, disposable, role.
block · Block an email address or a whole domain for this account. Sends to it are refused.
unblock · Remove an email address or domain from the blocklist.
list_blocklist · The account's blocked addresses and domains.

Show 8 more

add_unsubscribe · Record an opt-out. Campaigns to that list (or every list, if list_id is empty) skip the address.
buy_pack · Start buying a pack (pack_5 = $5, pack_10 = $10, pack_50 = $50; each $1 adds 3,636 email credits, which don't renew and last until used, plus a purchase fee of 5% or at least $0.50 at checkout; GET /v1/pricing has the totals). Returns a che
order_status · Status of an order from buy_pack: pending or paid.
create_api_key · Create a long-lived API key (max 10 per account). It is shown only once. mode 'test' makes an e59_test_ key for staging and CI: its sends are accepted and stored, never delivered, and use no allowance.
list_test_messages · Emails sent with a test key (e59_test_...), newest first: accepted, stored, never delivered. Pass id for one email with its html and text (a verify_start code is in there), or to to filter by recipient.
list_api_keys · The account's API keys (ids and labels, never the keys themselves).
verify_start · Email a one-time verification code to an address (sign-up, sign-in, confirming an email). email59 makes the code, sends it, limits resends and expires it; the code is never returned to you. Returns an id. Uses 1 email of today's allowance.
verify_check · Check a code from verify_start. Give to (checks the newest code sent there) or id, and code. Returns valid true or false and a status: approved, wrong_code, expired, too_many_attempts (5 wrong codes lock it), already_used, replaced or not_f

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Hosted endpoint	https://email59.com/v1/mcp	DECLARED	SRC-001 Official MCP Registry	2h ago
Local install (package)	no	DECLARED	SRC-001 Official MCP Registry	2h ago
Remote access (hosted)	yes	DECLARED	SRC-001 Official MCP Registry	2h ago
Website	https://b59.link/mcp-pulsemcp-email59	DECLARED	SRC-001 Official MCP Registry	2h ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	2h ago
Version	0.5.0	DECLARED	SRC-001 Official MCP Registry	2h ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	2h ago

Change history

NEW24 Oct 2026
first seen in the index

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Questions about email59

How do I connect email59?

Use the hosted endpoint https://email59.com/v1/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does email59 offer?

When Electra Index connected on 24 Oct 2026, it listed 20 tools: auth, get_pricing, get_account, update_account, send_email, send_campaign, check_email, check_list and more. The full list is in "Live check" above.

Is email59 online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.