---
title: "Append current availability evidence"
method: POST
path: "/v1/supplier/catalog-items/availability"
tags: ["Supplier catalog"]
---

# Append current availability evidence

`POST /v1/supplier/catalog-items/availability`

## Request

- Base URL: `https://api.supplyslate.com`
- URL: `https://api.supplyslate.com/v1/supplier/catalog-items/availability`
- Auth: one of:
  - OAuth 2 (authorization code, authorization URL `https://mcp.supplyslate.com/authorize`, token URL `https://mcp.supplyslate.com/oauth/token`)
  - HTTP bearer

## Headers

- `Idempotency-Key` string

## Request body

- AvailabilityWrite
  - `items` object[], required
    - `supplier_sku` string, required
    - `status` 'in_stock' | 'limited' | 'backorder' | 'made_to_order' | 'unavailable' | 'unknown', required
    - `quantity_available` number
    - `lead_time_days` integer
    - `observed_at` string, date-time, required
    - `expires_at` string, date-time

## Response `200`

Successful response

- AvailabilityResponse
  - `updated_catalog_item_ids` string[], required
  - `updated_count` integer, required
  - `request_id` string

## Other responses

- `400`: Invalid request
- `401`: Authentication required
- `403`: Scope or tenant boundary denied
- `404`: Resource not found
- `409`: State conflict or idempotency mismatch
- `429`: Rate limited

---

[API](https://skmtc.dev/supplyslate/apis/supplyslate-agent-native-supply-api.md) · [All operations](https://skmtc.dev/supplyslate/apis/supplyslate-agent-native-supply-api/llms.txt) · [OpenAPI document](https://skmtc.dev/supplyslate/apis/supplyslate-agent-native-supply-api/revisions/f7989551f167?raw)