# BounceLayer Muse connector

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

## BounceLayer

Check if an email address is real before you send, with a plain reason for each result.

- Record: https://musedirectory.ai/connector/bouncelayer
- Category: Marketing & Ads
- Developer: BounceLayer (https://bouncelayer.com/ai-agents)
- 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, 233ms, checked 2026-11-07T02:45:58Z
- Endpoint: https://api.bouncelayer.com/mcp/
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-06T21:16:28Z)
- Source: Found in the official MCP Registry (com.bouncelayer/mcp) https://registry.modelcontextprotocol.io/v0/servers?search=com.bouncelayer%2Fmcp

Connects to BounceLayer's email verification API. Muse can verify single addresses, queue bulk lists, check job status, cancel jobs, and read credit balance. Main checks need an API key; a limited demo works without one.

Example request: "Check whether the email addresses on my customer list are deliverable before I send a newsletter."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use BounceLayer to help me. It is a free service with an MCP server at https://api.bouncelayer.com/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:
- verify_email: Verify a single email's deliverability (syntax, DNS/MX, SMTP mailbox, disposable / role / catch-all detection, confidence score). Costs 1 credit for a billable result (valid/invalid/catch_all/disposable/do_not_mail), whether fresh or served from cache. `unknown` results are free.
- submit_bulk_verification: Queue a list of emails for asynchronous verification. Reserves up to N credits (final charge settles on completion). Poll get_bulk_job for status and results. Optionally provide webhook_url for a completion callback. Requires an API key. Returns {job_id, status, total_emails, cre
- get_bulk_job: Get the status, progress, and (when complete) results of a bulk job by its job_id. Requires an API key.
- list_bulk_jobs: List your recent bulk verification jobs (paginated, newest first). Optionally filter by status. Requires an API key.
- cancel_bulk_job: Cancel a pending or processing bulk job and release any reserved credits. Requires an API key.
- get_credit_balance: Return your current credit balance and lifetime usage. Requires an API key.
- verify_email_demo: Check one email WITHOUT an API key: format, common typos, throwaway domains, role and free-provider addresses, and whether the domain has mail servers (MX). It never contacts the mailbox, so a good address comes back "unknown", not "valid"; use verify_email for a real answer. Lim
- create_agent_account: Get your own BounceLayer API key without a person signing up first. No API key needed. Returns an API key with a few free credits and a claim_url. Use the key in the 'X-API-Key' header (reconnect this MCP server with it). Give claim_url to the person you work for: when they open 
- get_api_discovery: Return BounceLayer's machine-readable discovery URLs (OpenAPI, docs, auth.md, well-known metadata). No API key required.

Screening checks:
- MCP handshake: pass (Answered in 184ms)
- Domain against threat feeds (Cloudflare security DNS): pass (api.bouncelayer.com, bouncelayer.com not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: pass (9 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 32 days ago)
- AI review of purpose and tool behavior: pass (No concerns)