# LeadLex API rate limits and MCP limits

> How many calls an API key can make a day, how fast an AI assistant can call LeadLex over MCP, and which plans include it.

Source: https://www.leadlex.com/help/ai-and-api/api-and-mcp-limits
Last updated: 2026-10-23

An API key is limited to 500 calls a day. The MCP connection that lets Claude or ChatGPT work with LeadLex allows 60 calls a minute, and it is included on every plan.

| | Limit | Where it applies |
|---|---|---|
| API key | 500 calls a day | Each key |
| MCP connection | 60 calls a minute | Claude, ChatGPT and other AI assistants |

## What to do when you hit a limit

- **API key.** Space the calls across the day, or batch the work into fewer calls.
- **MCP.** Wait a minute. A long request that makes many small calls reaches 60 faster than one broad question.

## Who sets these up

Only workspace admins create API keys. See [Create an API key](/help/ai-and-api/create-an-api-key). To connect an AI assistant, see [Connect Claude or ChatGPT to LeadLex](/help/ai-and-api/connect-claude-or-chatgpt).

## Credits are separate

These limits count calls. Credits count AI work. A call that triggers an AI action also uses credits. See [Credits: what costs what](/help/account/credits-what-costs-what).

## What happens next

Need a higher limit for a project? Write to [lexi@leadlex.com](mailto:lexi@leadlex.com) with what you want to build.