> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.ntropy.com/api/rate-limits/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.ntropy.com/_mcp/server. # Rate limits At Ntropy, we implement a rate-limiting policy based on the computational cost of each endpoint and its possible use case. **The rate limiting is calculated per API key**, independent of the source of the request (i.e., IP). For transaction enrichment, we have a system of credits for wherein each transaction deducts one credit from your API key. You can accumulate at most 50,000 credits which are refilled at a rate of 500 per second. Additionally, there is a system to limit the number of concurrent enrichment operations running at any given time. You can have up to 10 concurrent enrichment operations. **If you are hitting rate limits of our API with your workloads, please [contact us](/support) to increase them for your API key.**