# Seltz — Orthogonal API

> Pay-per-use API on Orthogonal. Each call is billed to your Orthogonal balance.
> Base API: `https://mono.orthogonal.com/v1/run` · [llms.txt](https://mono.orthogonal.com/llms.txt) · [browse all APIs](https://mono.orthogonal.com/catalog)

Context-engineered web search API. Search the web and return matching documents with full content.

**Verified:** yes

## Access

**Run API:** `POST https://mono.orthogonal.com/v1/run`
**Auth:** `Authorization: Bearer $ORTHOGONAL_API_KEY`
Get an API key at https://mono.orthogonal.com/account/keys

Every call goes through the unified Run API: send the API `slug`, the endpoint `path`, and the `query`/`body` parameters. The response is `{ "success": true, "price": "<usd>", "data": { ... } }`.

## Endpoints

### Search

Search the web and return matching documents with URLs and content.

`POST /v1/search`

**Estimated cost:** $0.00625

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `query` | string | Yes | The search query. Keep it short for best performance. |
| `max_results` | integer | No | Maximum number of documents to return. Default: 10. |
| `scope` | string | No | Limits search to a specific vertical. Options: "news", "wikipedia", "people", "companies". Defaults to "news" when omitted. |
| `include_domains` | array | No | Include only results from these domains (e.g. ["google.com", "example.com"]). |
| `exclude_domains` | array | No | Exclude results from these domains. |
| `from_date` | string | No | Only include results published on or after this date (ISO 8601, e.g. "2025-10-28"). |
| `to_date` | string | No | Only include results published on or before this date (ISO 8601, e.g. "2026-04-29"). |

```bash
curl -X POST 'https://mono.orthogonal.com/v1/run' \
  -H 'Authorization: Bearer $ORTHOGONAL_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"api":"seltz","path":"/v1/search","body":{"query":"<string>","max_results":"<integer>","scope":"<string>","include_domains":"<array>","exclude_domains":"<array>","from_date":"<string>","to_date":"<string>"}}'
```

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Full details and an interactive quickstart: https://mono.orthogonal.com/publisher/seltz