Create a verification batch

Create a verification batch

Queues a list of up to 100,000 email addresses for verification and returns a batchId, the number of addresses and the duplicates found.

Note: Send [{"email": "…"}]. Batches of 1,000 to 10,000 are recommended, and an account's batches run one after another. Returns 402 when credits run short. Poll the batch's status, then download its results.

Set up

Use the first option your agent supports.

MCP (official, remote)

Add this server to your agent's MCP settings, then sign in when asked.

{ "mcpServers": { "bouncer": { "url": "https://api.usebouncer.com/mcp" } } }

Call the MCP tool create_batch.

Server URL: https://api.usebouncer.com/mcp

API (official)

• Base URL: https://api.usebouncer.com
• Endpoint: POST /v1.1/email/verify/batch
• Auth: send the header x-api-key: $BOUNCER_API_KEY
• Get a key: https://app.usebouncer.com
• Docs: https://docs.usebouncer.com/quick-start

Note: Create the key in the app's API section. Batch jobs run one after another per account, so a 100,000-address batch delays the next one.

Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
• Never print API keys.