Skip the install. Get this working in under 2 minutes.
Start a free trial on cloud.anythingmcp.com, add the NeverBounce in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.
Summary
Validate single emails or run bulk-list verification jobs via NeverBounce. 6 tools, query-string API-key auth.
Try asking
Example prompts for NeverBounce
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → NeverBounce, paste your credentials, mint an MCP API key — done. No Docker, no
git clone, no local server.
NeverBounce + ChatGPT
Validate single emails or run bulk-list verification jobs via NeverBounce. 6 tools, query-string API-key auth.
Prerequisites
See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:
NEVERBOUNCE_API_KEY
Step 1 — Get credentials
2 (developers.neverbounce.com).
Setup:
- Sign in to https://app.neverbounce.com → Apps → New API Key.
- Copy the key. Set
NEVERBOUNCE_API_KEY.
Authentication: query-string ?key=.... NeverBounce also supports a custom Auth header but query-string is the primary.
Single vs Bulk:
neverbounce_single_check: synchronous single-email verification. ~1 credit. Returns result (valid/invalid/disposable/catchall/unknown) + flags + suggested_correction.neverbounce_create_job: async bulk verification of a list (up to 1M emails). Returns job_id; poll status withneverbounce_job_statusuntil status='complete'; thenneverbounce_job_resultsto fetch.
…(continued in the in-app connector instructions)
Step 2 — Install the adapter
curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d
Step 3 — Add the connector in ChatGPT
Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (
https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide showsYOUR_SERVER_ID.
ChatGPT connects to MCP servers as custom apps in developer mode, available on paid plans (not on Free). On Business and Enterprise workspaces an admin may have to allow it first.
- In ChatGPT, open Settings → Security and login and turn on Developer mode.
- Go to chatgpt.com/plugins and click +.
- Enter a name and a short description, e.g. Name:
NeverBounce. - Under Connection, enter the MCP server URL
https://cloud.anythingmcp.com/mcp/YOUR_SERVER_IDand create the connection. - When ChatGPT asks, sign in to AnythingMCP (OAuth) and allow access.
Available tools
| Tool | What it does |
|---|---|
neverbounce_account_info | Return account credit balance and details |
neverbounce_single_check | Verify a single email synchronously |
neverbounce_create_job | Create a bulk verification job |
neverbounce_job_status | Poll the status of a bulk verification job |
neverbounce_job_results | Fetch verification results for a complete job, paginated |
neverbounce_jobs_search | Search past jobs by status, name, date |
FAQ
Does the free ChatGPT plan work with custom MCP connectors? No. Custom MCP connections need developer mode, which is only on paid plans.
Next steps
Was this guide helpful?
