> For the complete documentation index, see [llms.txt](https://userguide.zappost.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://userguide.zappost.com/zap-api/api-endpoints.md).

# API Endpoints

1. ​[Campaigns ](/zap-api/api-endpoints/campaigns.md)- List campaigns and view campaign specific information or configuration
2. ​[Scheduled Sends](https://app.gitbook.com/o/j3sCcHTw7fXmpqup9TTi/s/jYJopZy4jSpzcf1NPU0w/api-endpoints/scheduledsends) - List the current scheduled send dates available in ZAP-POST
3. ​[Submissions ](/zap-api/api-endpoints/submissions.md)- Push data to the ZAP API and trigger your direct mail sends
4. ​[Rejected Records](/zap-api/api-endpoints/rejectedrecords.md) - Look up details for any records that have failed our data cleansing process
5. ​[Returned ZAPs ](/zap-api/api-endpoints/returnedzaps.md)- List any ZAPs that were unable to be posted and why


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