---
title: "Review Discovery selection, destination and Wallet Credits without a hold."
method: POST
path: "/v2/discovery/checkout/quote"
tags: ["Discovery"]
---

# Review Discovery selection, destination and Wallet Credits without a hold.

`POST /v2/discovery/checkout/quote`

## Request

- Base URL: `https://api.omtx.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.omtx.ai/v2/discovery/checkout/quote`
- Auth: one of:
  - API key in header `x-api-key`
  - HTTP bearer

## Headers

- `Idempotency-Key` string, required

## Request body

- object: Quote selected material and optional AS-MS without charging credits.
  - `candidate_source` 'om_ranked' | 'customer_selected', required
  - `space_id` 'small' | 'large', required
  - `molecule_count` integer, required
  - `molecules` DiscoveryCheckoutMolecule[] (unresolved $ref)
  - `protein_sequence` string, nullable
  - `target_label` string, nullable
  - `assay_type` 'none' | 'as_ms'
  - `shipping_address_id` string, uuid, nullable

## Response `200`

Successful Response

- unknown

---

[API](https://skmtc.dev/omtx/apis/gateway.md) - [All operations](https://skmtc.dev/omtx/apis/gateway/llms.txt) - [OpenAPI document](https://skmtc.dev/omtx/apis/gateway/revisions/232715a75205?raw)