---
title: "Contact"
description: "Talk to a human"
canonical: "https://onecheckout.ai/contact"
last-updated: "2026-08-23"
---
# Contact OneCheckout

How to reach the OneCheckout and OneText team, as a human or as an agent.

## For agents: submit programmatically

`POST https://onecheckout.ai/api/contact`

No API key is required for this endpoint. Send JSON.

### Fields

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `email` | string | yes | Contact email address. |
| `interest` | string (enum) | yes | Which use case you're most excited about. Allowed values: `developer`, `build_agent`, `buy_from_agent`, `platform_buttons`, `not_interested`, `other`. |
| `firstName` | string | no | Given name. |
| `lastName` | string | no | Family name. |
| `companyUrl` | string (URL) | no | Company or brand URL. A bare domain is accepted. |
| `message` | string | no | What you'd like to let us know. |
| `dreamPurchase` | string | no | If you could buy anything via AI, what would it be? |

### Example

```bash
curl -X POST https://onecheckout.ai/api/contact \
  -H "Content-Type: application/json" \
  -d '{"firstName":"Ada","lastName":"Lovelace","email":"ada@example.com","companyUrl":"https://example.com","interest":"build_agent","message":"Exploring OneCheckout for an autonomous shopping agent.","dreamPurchase":"Groceries delivered before I run out."}'
```

A machine-readable description of this same contract is served by
`GET https://onecheckout.ai/api/contact`, and the endpoint is described in
the OpenAPI document at https://onecheckout.ai/openapi.json.

### Responses

- `200`: received.
- `422`: validation failed. The body carries an `error.details` array naming each invalid field.
- `429`: rate limited. Honour the `Retry-After` header (seconds) and the `RateLimit-*` headers.

Rate-limit conventions for every endpoint are documented at https://onecheckout.ai/docs/versioning.

## For humans

- Contact form: https://onecheckout.ai/contact
- Book time with the founders: https://calendly.com/onetext/30min

## Related agent resources

- API reference: https://onecheckout.ai/docs (Markdown: https://onecheckout.ai/docs.md)
- OpenAPI: https://onecheckout.ai/openapi.json
- MCP server: https://onecheckout.ai/connect (Markdown: https://onecheckout.ai/connect.md)
- Versioning and deprecation policy: https://onecheckout.ai/docs/versioning