---
title: "Submit bid asynchronously"
method: POST
path: "/api/v1/auctions/{id}/bids/async"
tags: ["Bids"]
---

# Submit bid asynchronously

`POST /api/v1/auctions/{id}/bids/async`

Submit a bid for an auction with queue-based processing. Returns a tracking ID for status monitoring. Requires authentication with bid permissions.

## Path parameters

- `id` string, required — Auction ID

## Request body

- object
  - `amount` string, required — Bid amount in wei
  - `quantity` integer, required — Requested quantity
  - `maxGasPrice` string — Maximum gas price in wei
  - `metadata` object — Additional bid metadata
  - `priority` 'low' | 'normal' | 'high' — Processing priority
  - `callback` string, uri — Callback URL for status updates

## Response `202`

Bid queued for processing

- object
  - `success` true, required
  - `timestamp` number, required
  - `trackingId` string, required — Unique tracking identifier for the bid
  - `estimatedProcessingTime` number, required — Estimated processing time in milliseconds
  - `queuePosition` integer, required — Current position in queue
  - `status` 'queued' | 'processing', required — Current processing status
  - `message` string, required — Status message

## Other responses

- `401` — Unauthorized - Invalid or missing API key
- `403` — Forbidden - Insufficient permissions
- `429` — Too Many Requests - Rate limit exceeded
- `500` — Internal Server Error

---

[API](https://skmtc.net/manifoldfinance/apis/xga-auction-system-api.md) · [All operations](https://skmtc.net/manifoldfinance/apis/xga-auction-system-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/manifoldfinance/xga-auction-system-api/revisions/329190dccb50/schema)