How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
Bullish

Bullish WebSocket Auction Feed API

AsyncAPI 3.0.0 document for the real-time auction feed, delivering phase and order-imbalance data for Bullish markets with auctions enabled.

Documentation Provider Profile APIs.io AsyncAPI GitHub

Bullish WebSocket Auction Feed API is one of 32 APIs that Bullish publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Market Data, Auction, and WebSocket. The published artifact set on APIs.io includes an AsyncAPI specification and API documentation.

This event API exposes 0 operations across 1 channel, and defines 5 schemas. It is described by AsyncAPI 3.0.0, at version 1.0.0.

The API connects through 6 servers: api.exchange.bullish.com (wss), registered.api.exchange.bullish.com (wss), prod.access.bullish.com (wss), api.simnext.bullish-test.com (wss), registered.api.simnext.bullish-test.com (wss), simnext.access.bullish.com (wss).

0 operations 1 channels 5 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 3.0.0
API Version
1.0.0
Base URL
wss://api.exchange.bullish.com

Messages & Schemas 5

The contract defines 5 schemas that model the data carried by its messages. The most detailed are AuctionPhase (14 properties), AuctionNoii (10 properties). Each schema is shown below with its type and property counts.

AuctionNoii
object
10 properties
AuctionPhase
object
14 properties
AuctionJsonRpcRequestId
string
Request identifier
AuctionJsonRpcVersion
string
"2.0"
AuctionJsonRpcCommandType
object
"command"

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

bullish-ws-auction-asyncapi.yml Raw ↑

Other APIs Bullish publishes across the network.

Bullish Deprecated Features and APIs
AE Profile APIs.io
Bullish WebSocket Multi-Order Book API
AE Profile APIs.io
Bullish WebSocket Anonymous Trades API
AE Profile APIs.io
Bullish WebSocket Anonymous Ticks API
AE Profile APIs.io
Bullish WebSocket Index Data API
AE Profile APIs.io
Bullish WebSocket Private Data API
AE Profile APIs.io
Bullish FIX API
AE Profile APIs.io
Bullish Aggregator API
AE Profile APIs.io
Bullish Account Assets API
AE Profile APIs.io
Bullish Amm Instructions API
AE Profile APIs.io
Bullish Asset Data API
AE Profile APIs.io
Bullish Auction Public API
AE Profile APIs.io
#Market Data#Auction#WebSocket
← Back to B APIs
API Details
ID
bullish:ws-auction
Base URL
wss://api.exchange.bullish.com
Docs
https://docs.exchange.bullish.com/websocket/public/market-data/auction
Provider
Bullish
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=ws-auction&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/ws-auction"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of Bullish WebSocket Auction Feed API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.