Bitnomial website screenshot

Bitnomial

Bitnomial is a Chicago-based derivatives exchange company that owns and operates U.S. CFTC-regulated subsidiaries — a Designated Contract Market (exchange/DCM), a Derivatives Clearing Organization (clearinghouse/DCO), and a Futures Commission Merchant (clearing brokerage/FCM). It offers leveraged spot, perpetuals, futures, options, and prediction markets on a single regulated venue with crypto margin and settlement. For developers, Bitnomial publishes a public HTTPS REST API (products, orders, fills, block trades, indexes, funding rates, market stats), a real-time WebSocket market-data feed (trade, book, block, status channels), a low-latency binary order-entry protocol (BTP), and a FIX 4.4 API with dropcopy. REST authentication uses HMAC-SHA256 request signing with per-connection credentials. Surfaced as a portfolio company of Electric Capital and enriched by the API Evangelist pipeline.

Bitnomial publishes 1 API on the APIs.io network: Market Data WebSocket API. Tagged areas include Company, Fintech, Cryptocurrency, Derivatives, and Exchange.

The Bitnomial catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Bitnomial’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, authentication, sandbox, and 18 more developer resources.

40.8/100 developing ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessSelf serve
2 APIs 1 MCP Servers
CompanyFintechCryptocurrencyDerivativesExchangeTradingMarket DataFuturesOptionsCFTC Regulated

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 40.8/100 · developing
Contract Quality 9.4 / 21
Developer Ergonomics 13.4 / 17
Access Clarity 0.0 / 17
Operational Transparency 3.2 / 11
Contract Governance 1.9 / 10
Discoverability 6.5 / 9
Regulatory Posture 5.7 / 15
Agent readiness — 29/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/bitnomial: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Bitnomial Exchange REST API

Public HTTPS REST API for the Bitnomial exchange — products and contract specs, orders, fills, block trades, indexes, funding rates, and market statistics. HMAC-SHA256 signed au...

Bitnomial Market Data WebSocket API

Real-time WebSocket market-data feed delivering trade, order book, block trade, and market status messages for subscribed products.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Bitnomial Market Data WebSocket API

Real-time market-data feed for Bitnomial's CFTC-regulated derivatives exchange. Clients open a WebSocket connection and must send a subscribe message within 10 seconds or they a...

ASYNCAPI

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Bitnomial Authentication

hmac-signed-api-key · 1 scheme

SECURITY

Bitnomial Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Bitnomial Vulnerability Disclosure

disclosure policy published

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 4

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: bitnomial
name: Bitnomial
description: Bitnomial is a Chicago-based derivatives exchange company that owns and operates U.S. CFTC-regulated subsidiaries
  — a Designated Contract Market (exchange/DCM), a Derivatives Clearing Organization (clearinghouse/DCO), and a Futures Commission
  Merchant (clearing brokerage/FCM). It offers leveraged spot, perpetuals, futures, options, and prediction markets on a single
  regulated venue with crypto margin and settlement. For developers, Bitnomial publishes a public HTTPS REST API (products,
  orders, fills, block trades, indexes, funding rates, market stats), a real-time WebSocket market-data feed (trade, book,
  block, status channels), a low-latency binary order-entry protocol (BTP), and a FIX 4.4 API with dropcopy. REST authentication
  uses HMAC-SHA256 request signing with per-connection credentials. Surfaced as a portfolio company of Electric Capital and
  enriched by the API Evangelist pipeline.
url: https://raw.githubusercontent.com/api-evangelist/bitnomial/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- electric-capital
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://bitnomial.com/images/social-preview.jpg
tags:
- Company
- Fintech
- Cryptocurrency
- Derivatives
- Exchange
- Trading
- Market Data
- Futures
- Options
- CFTC Regulated
apis:
- name: Bitnomial Exchange REST API
  description: Public HTTPS REST API for the Bitnomial exchange — products and contract specs, orders, fills, block trades,
    indexes, funding rates, and market statistics. HMAC-SHA256 signed authentication; cursor pagination; rate limited to 200
    requests per 5 minutes.
  humanURL: https://bitnomial.com/exchange/docs/api/rest/overview/
  baseURL: https://bitnomial.com/exchange/api/v1/prod
  tags:
  - REST
  - Trading
  - Market Data
  properties:
  - type: Documentation
    url: https://bitnomial.com/exchange/docs/api/rest/overview/
  - type: Authentication
    url: authentication/bitnomial-authentication.yml
  - type: Conventions
    url: conventions/bitnomial-conventions.yml
  - type: ErrorCatalog
    url: errors/bitnomial-problem-types.yml
  - type: DataModel
    url: data-model/bitnomial-data-model.yml
- name: Bitnomial Market Data WebSocket API
  description: Real-time WebSocket market-data feed delivering trade, order book, block trade, and market status messages
    for subscribed products.
  humanURL: https://bitnomial.com/exchange/docs/api/websocket/subscribe/
  baseURL: https://bitnomial.com/exchange/api/v1/prod
  tags:
  - WebSocket
  - Market Data
  - Streaming
  properties:
  - type: AsyncAPI
    url: asyncapi/bitnomial-market-data-asyncapi.yml
  - type: Documentation
    url: https://bitnomial.com/exchange/docs/api/websocket/subscribe/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://bitnomial.com/
- type: DeveloperPortal
  url: https://bitnomial.com/exchange/docs
- type: Documentation
  url: https://bitnomial.com/exchange/docs/api/overview/
- type: APIReference
  url: https://bitnomial.com/exchange/docs/api/rest/overview/
- type: GettingStarted
  url: https://bitnomial.com/exchange/docs/api/rest/authentication/
- type: Blog
  url: https://bitnomial.com/blog
- type: Support
  url: mailto:help@exchange.bitnomial.com
- type: StatusPage
  url: https://bitnomial.statuspage.io
- type: GitHubOrganization
  url: https://github.com/bitnomial
- type: Authentication
  url: authentication/bitnomial-authentication.yml
- type: Conventions
  url: conventions/bitnomial-conventions.yml
- type: ErrorCatalog
  url: errors/bitnomial-problem-types.yml
- type: Lifecycle
  url: lifecycle/bitnomial-lifecycle.yml
- type: DataModel
  url: data-model/bitnomial-data-model.yml
- type: Sandbox
  url: sandbox/bitnomial-sandbox.yml
- type: Packages
  url: packages/bitnomial-packages.yml
- type: SDKs
  url: packages/bitnomial-packages.yml
- type: CLI
  url: cli/bitnomial-cli.yml
- type: LLMsTxt
  url: llms/bitnomial-llms.txt
- type: MCPServer
  url: mcp/bitnomial-mcp.yml
- type: AsyncAPI
  url: asyncapi/bitnomial-market-data-asyncapi.yml
- type: Conformance
  url: conformance/bitnomial-conformance.yml
- type: DomainSecurity
  url: security/bitnomial-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/bitnomial-vulnerability-disclosure.yml
- type: Security
  url: https://bitnomial.com/security
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence