Emailable MCP by usefulapi MCP Server

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answering

Emailable MCP by usefulapi is answering right now. Last checked 10 min ago. It exposes 4 tools. Last commit 1 Nov 2026.

Verify email addresses with Emailable one by one or in batches, and read credits and batch results.

Uptime history 20 days of history · worst day 99%

20 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

173 ms

Response time

average over 24h

Stars

last commit 1 Nov 2026

What changed 23

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 13 October 2026. No other catalogue keeps this.

31 Oct a tool changed version4 times that day

30 Oct a tool changed version2 times that day

29 Oct a tool changed version2 times that day

28 Oct a tool changed version

27 Oct a tool changed version

25 Oct a tool changed version4 times that day

24 Oct a tool changed version3 times that day

23 Oct a tool changed version

22 Oct a tool changed version

20 Oct a tool changed version3 times that day

and 13 more, back to 13 October 2026

Emailable MCP by usefulapi missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add emailable --transport http https://emailable.usefulapi.io/mcp

Settings → Connectors → Add custom connector, then paste this address

https://emailable.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.emailable]
url = "https://emailable.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "emailable": {
      "url": "https://emailable.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "emailable": {
      "type": "http",
      "url": "https://emailable.usefulapi.io/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

emailable

emailable_create_batch

SPENDS CREDITS: starts a bulk verification of up to 5000 email addresses. Emailable takes 1 credit per email when the batch is created, and if the account has too few credits it may charge the account's saved card to buy more. A test_ API key spends nothing. The batch cannot be cancelled here, and the call is never retried: if it fails or times out, check emailable_get_account before trying again, because a retry can charge twice. Returns the batch id; poll it with emailable_get_batch. Emailable's terms allow verification of opt-in subscribers' addresses. POST /v1/batch.

emailable_get_account

The Emailable account behind this API key: the owner's email and available_credits. Check it before a large batch. GET /v1/account.

emailable_get_batch

Status and results of a batch made with emailable_create_batch: message, progress (processed/total), reason_counts and total_counts (deliverable, undeliverable, risky, unknown). Batches of up to 1,000 emails also return the results inline in `emails` (30 days). They come in pages: up to `limit` results, fewer if the reply would get too long; ask for the next page with emails_page.next_offset. A bigger batch returns download_file, a temporary link (5 days) to a ZIP of a CSV: share it only with the account owner. Free to call. GET /v1/batch.

emailable_verify_email

SPENDS CREDITS: verifies one email address and uses 1 Emailable credit (a test_ API key spends none). Returns state (deliverable, undeliverable, risky, unknown), reason, score (0-100), and flags: disposable, free, role, accept_all, no_reply, mailbox_full, plus did_you_mean (a typo fix), the detected user/domain/tag, mx_record and smtp_provider. A credit is returned for an unknown result. The call is never retried automatically. If the reply is {status: "try_again"}, the check took longer than the timeout: call again with the same email; repeats within 5 minutes are not charged. Emailable's terms allow verification of opt-in subscribers' addresses. GET /v1/verify.

Endpoints

URL	Transport	State	Latency	Checked
https://emailable.usefulapi.io/mcp	streamable-http	answering	170 ms	10 min ago

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Emailable MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Emailable MCP by usefulapi do?

It exposes 4 tools, read directly from the server on our last check. Among them: emailable_create_batch, emailable_get_account, emailable_get_batch, emailable_verify_email. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Emailable MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 173 ms. The bar chart above shows every period we have measured.

How do I connect Emailable MCP by usefulapi?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Emailable MCP by usefulapi need an API key?

No. Emailable MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Emailable MCP by usefulapi?

It answers our handshake in 173 ms on average, which is faster than 78% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Emailable MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at emailable.usefulapi.io, which runs on its operator's own terms.