# Authentication and access

## APIs

All Happy Endpoint APIs are distributed through RapidAPI. We do not issue our own keys.

1. Open the API's page on this site and follow the RapidAPI link.
2. Subscribe to a plan. Most APIs include a free tier for testing.
3. Copy your key from the RapidAPI dashboard.
4. Send it on every request:

```
x-rapidapi-key: <your-rapidapi-key>
x-rapidapi-host: <api-host>.p.rapidapi.com
```

The host for each API is listed at https://happyendpoint.com/api-catalog.json.

Billing, quotas and key rotation are handled by RapidAPI, not by us. Remaining quota is
returned on every response in `x-ratelimit-requests-remaining`.

For MCP clients, see https://happyendpoint.com/mcp.md.

## Datasets

Bulk datasets are a one-time purchase, not an authenticated API. Delivered as CSV, Excel
or Parquet. Several ship a free sample with an identical schema so integration code
written against the sample works unchanged against the paid file:
https://happyendpoint.com/free-datasets

## Data feeds

Daily-tracked feeds are delivered as a shared sheet, updated every day. Access is
arranged per customer rather than self-serve: https://happyendpoint.com/data-feeds

## Contact

happyendpointhq@gmail.com - https://happyendpoint.com/contact