# Bullish **Canonical:** https://apis.io/providers/bullish/ **Website:** https://www.bullish.com/us/ **APIs profiled:** 32 Bullish is an institutional digital-asset exchange and custodian operating a regulated spot, perpetual, dated-futures and options venue with an integrated automated market maker, deterministic central limit order book matching, and qualified custody. It publishes a genuinely machine-readable API estate: a 79-operation OpenAPI 3.0.3 Trading API covering markets, orders, trades, AMM instructions, derivatives positions, portfolio-margin simulation, OTC and inter-dealer-broker booking, custody deposits and withdrawals, and history; six AsyncAPI 3.0.0 WebSocket documents for order book, trades, ticks, auction, index and private account data; and a FIX 4.2/5.0 order-entry and drop-copy surface. Authentication is JWT bearer minted from a client-signed ECDSA R1 or HMAC login rather than OAuth. Bullish is licensed or registered with the Gibraltar Financial Services Commission, BaFin (MiCA CASP and qualified crypto custodian), the Hong Kong SFC, FinCEN and NYDFS, and lists on the NYSE as BLSH. ## Kin Score — 62.9 / 100 (strong) Scored 2026-08-12 under rubric 0.11.0. Trend: flat (+0.0 from 62.9). | Facet | Score | |---|---| | Discoverability | 81.5 | | Contract Quality | 66.9 | | Governance | 11.5 | | Operational Transparency | 86.8 | | Developer Ergonomics | 69.0 | | Commercial Clarity | 60.5 | Regulatory layer — **Securities & Market Data**: 60.0 (matched via tags). ## Agent readiness — 46.2 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | MCP Server | derived | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | verified | | OpenAPI Examples | partial | | Rate Limit Signal | documented | | Event Surface Described | derived | | Agent Skills | derived | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | ## APIs (32) - **Bullish Deprecated Features and APIs** — A separately published OpenAPI document carrying the 15 operations Bullish has deprecated or decommissioned — the v1 order create/cancel/get surface, v1 AMM instructions, v1 spo... - **Bullish WebSocket Multi-Order Book API** — AsyncAPI 3.0.0 document for simultaneous subscriptions to multiple L1 and L2 order books across different Bullish markets over WebSocket. - **Bullish WebSocket Anonymous Trades API** — AsyncAPI 3.0.0 document for batched anonymous trade subscriptions across multiple Bullish markets over WebSocket. - **Bullish WebSocket Anonymous Ticks API** — AsyncAPI 3.0.0 document for simultaneous tick subscriptions across multiple Bullish markets over WebSocket. - **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. - **Bullish WebSocket Index Data API** — AsyncAPI 3.0.0 document for streaming Bullish index prices, with the subscribed asset set controlled by subscription-message parameters. - **Bullish WebSocket Private Data API** — AsyncAPI 3.0.0 document for the authenticated private stream — real-time orders, trades, asset accounts, trading accounts, derivatives positions, AMM instructions and market-mak... - **Bullish FIX API** — The Bullish FIX order-entry, drop-copy, reference-data and trading-status surface for institutional and high-frequency clients, with session management and component definitions... - **Bullish Aggregator API** — A small non-authenticated REST surface publishing aggregated public market data — tickers with 24-hour rolling statistics, order books, and the last 100 trades, each optionally ... - **Bullish Account Assets API** — Authenticated APIs for reading account data - **Bullish Amm Instructions API** — Authenticated APIs that allow users to Create, View and Terminate AMM instructions. Please refer to the [AMM instruction Overview Doc](https://github.com/bullish-exchange/api-do... - **Bullish Asset Data API** — Non-authenticated APIs for accessing general asset data information - **Bullish Auction Public API** — The auction-public API from Bullish — 2 operation(s) for auction-public. - **Bullish command entry API** — Authenticated API for submitting commands into the exchange. - **Bullish Custody API** — Authenticated APIs for custody, [Custody Basic Examples](https://github.com/bullish-exchange/api-examples/blob/master/bullish/rest/custody_basics.py) Custody APIs have a limit o... - **Bullish deprecated - q3 2024 API** — List of deprecated APIs that will be removed towards the end of Q3 2024. - **Bullish Derivatives API** — The derivatives API from Bullish — 1 operation(s) for derivatives. - **Bullish Derivatives Public API** — The derivatives-public API from Bullish — 3 operation(s) for derivatives-public. - **Bullish General API** — The general API from Bullish — 2 operation(s) for general. - **Bullish History API** — The history API from Bullish — 5 operation(s) for history. - **Bullish Idb API** — The Inter-dealer Broker (IDB) API is available to authorized inter-dealer brokers to book OTC trades on Bullish on behalf of their respective end customers. - **Bullish Index Price Data API** — The index-price-data API from Bullish — 2 operation(s) for index-price-data. - **Bullish Market Data API** — Non-authenticated APIs for accessing general market data information - **Bullish Market History Data API** — The market-history-data API from Bullish — 4 operation(s) for market-history-data. - **Bullish Market Maker Protection API** — The market-maker-protection API from Bullish — 1 operation(s) for market-maker-protection. - **Bullish Orders API** — Authenticated APIs for interacting with orders - **Bullish Otc API** — The OTC Clearing Facility API (OTC API) is available to customers to book trades negotiated outside of the Bullish Exchange order book to Bullish's clearing and settlement platf... - **Bullish Portfolio Margin Simulator API** — The portfolio-margin-simulator API from Bullish — 2 operation(s) for portfolio-margin-simulator. - **Bullish Session Management API** — The session-management API from Bullish — 3 operation(s) for session-management. - **Bullish Trades API** — Authenticated APIs for reading trade data - **Bullish Trading Accounts API** — The trading-accounts API from Bullish — 2 operation(s) for trading-accounts. - **Bullish Transfer API** — Authenticated API for initiating asset transfers between trading accounts. ## MCP servers (1) - **bullish-mcp.yml** ## Agentic access (1) - **Bullish Agentic Access** — 94 operations · 29 acting · 3 human-in-the-loop ## Security (4) - **Bullish Authentication** — http/custom-signed-login · 1 scheme - **Bullish Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC - **Bullish Vulnerability Disclosure** — Bugcrowd - **Bullish Trust Center** — SOC 1 Type 1, SOC 2 Type 1 ## Tags Digital Assets, Cryptocurrency, Exchange, Trading, Derivatives, Custody, Market Data, Financial Services, Institutional, FIX --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/bullish/). Scores are computed from the provider's own public artifacts under a published rubric.