> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bounceless.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Choose an integration

> Choose between the Bounceless API, CLI, local MCP server, and agent skill.

# Choose an integration

All supported interfaces use the same account-scoped Bounceless API key. Choose by execution environment, not by a promise of different verification quality.

| Interface   | Best for                               | Start here                       | Important boundary                                                            |
| ----------- | -------------------------------------- | -------------------------------- | ----------------------------------------------------------------------------- |
| HTTP API    | Applications and services              | [Quickstart](/quickstart)        | Four GA routes; `X-Api-Key` is canonical.                                     |
| CLI         | Shell workflows and controlled exports | [CLI guide](/cli)                | Writes results to stdout; redirect them to a protected file.                  |
| Product MCP | MCP-capable local agents               | [MCP guide](/guides/mcp)         | `@bounceless/mcp` runs locally over stdio and exposes four product tools.     |
| Agent skill | Coding agents that can install skills  | [Agent onboarding](/agent-guide) | Instructions only; the key remains in the agent runtime's secret environment. |

The Mintlify documentation MCP is a separate read-only service for searching and reading these pages. It cannot verify an address and must not receive your product API key.

For a synchronous one-address check, use [Verify single](/verify-single). For a retrievable asynchronous workflow or more than one address, use [Verify batch](/verify-batch).