One Trading

One Trading (One Trading Exchange B.V.) is an EU-regulated cryptocurrency and derivatives exchange for retail and institutional traders, positioning itself as "the world's fastest exchange." It offers spot crypto plus crypto futures (up to 10x leverage), index futures and 24/7 equity futures. Its public "Fast API" provides REST market-data and trading endpoints (currencies, instruments, order book, candlesticks, ticker, fees, funding rates, orders, trades, futures positions and subaccount transfers) at https://api.onetrading.com/fast, plus a real-time WebSocket streams API at wss://streams.fast.onetrading.com. Formerly operated as Bitpanda Pro. This profile was surfaced as a Speedinvest portfolio company and enriched by the API Evangelist pipeline from the provider's public documentation and live endpoints.

One Trading publishes 5 API contracts indexed on the APIs.io network, including WebSocket Streams API, Funding API, Futures API, and 2 more. Tagged areas include Company, Cryptocurrency, Cryptocurrency Exchange, Trading, and Derivatives.

The One Trading catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

One Trading’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, authentication, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.0/100 thin ▬ flat Agent 29/100 agent ready Front door AI 1/6 silent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 3 Agent Skills

Company Cryptocurrency Cryptocurrency Exchange Trading Derivatives Futures Financial Services Market Data WebSocket Fintech Real-Time

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 34.0/100 · thin

Contract Quality 4.5 / 19

Developer Ergonomics 7.4 / 15

Access Clarity 5.7 / 15

Operational Transparency 1.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 23.9 — up to +19.0 composite points
Access Clarity scores 38.2 — up to +12.4 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/one-trading/apis.yml: open an issue on github.com/api-evangelist/one-trading to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

WebSockets

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

AsyncAPI

measured — observed by APIs.io (published)

APIs 5

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

One Trading WebSocket Streams API

Real-time WebSocket API for market data (order book, price ticks, book ticker) and, after authenticating, private trading events (order lifecycle, trades, settlement, funding pa...

One Trading Funding API

Subaccount balance transfers

One Trading Futures API

Futures positions, funding and portfolio endpoints

One Trading Public API

Public market-data endpoints (no authentication)

One Trading API

Account order and trade endpoints (Bearer token, TRADE/READ scope)

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

One Trading Fast Funding API

OPEN COLLECTION

One Trading Fast Funding Futures API

OPEN COLLECTION

One Trading Fast Funding Public API

OPEN COLLECTION

One Fast Funding Trading API

OPEN COLLECTION

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Monitor and manage a futures portfolio

AGENT SKILL

Place and manage a limit order

AGENT SKILL

Stream real-time market data

AGENT SKILL

Event Specifications 1

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

One Trading WebSocket Streams API

Real-time WebSocket (WSS) API for the One Trading exchange. Clients receive market data feeds (order book, price ticks, book ticker) and, after authenticating, private trading e...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

One Trading API Rules

54 rules · 52 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

One Trading Fast Overlay

2 actions · update · one-trading-fast-openapi.yml

DERIVED

Security Posture 2

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

One Trading Authentication

http · 1 scheme

SECURITY

One Trading Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AsyncAPI

AsyncAPI

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

DataModel

Conformance

Webhooks

Scroll for all 7

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: one-trading
name: One Trading
description: One Trading (One Trading Exchange B.V.) is an EU-regulated cryptocurrency and derivatives exchange for retail
  and institutional traders, positioning itself as "the world's fastest exchange." It offers spot crypto plus crypto futures
  (up to 10x leverage), index futures and 24/7 equity futures. Its public "Fast API" provides REST market-data and trading
  endpoints (currencies, instruments, order book, candlesticks, ticker, fees, funding rates, orders, trades, futures positions
  and subaccount transfers) at https://api.onetrading.com/fast, plus a real-time WebSocket streams API at wss://streams.fast.onetrading.com.
  Formerly operated as Bitpanda Pro. This profile was surfaced as a Speedinvest portfolio company and enriched by the API
  Evangelist pipeline from the provider's public documentation and live endpoints.
url: https://raw.githubusercontent.com/api-evangelist/one-trading/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://framerusercontent.com/images/m2JxgHpA4PAHjVJIacTjS6wnvRY.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- speedinvest
x-tier: enriched
x-tier-reason: portfolio-lead-with-live-api
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
x-docs-platform: redoc
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Cryptocurrency
- Cryptocurrency Exchange
- Trading
- Derivatives
- Futures
- Financial Services
- Market Data
- WebSocket
- Fintech
- Real-Time
tags_raw:
- Company
- Cryptocurrency
- Crypto Exchange
- Trading
- Derivatives
- Futures
- Financial Services
- Market Data
- WebSocket
- Fintech
- Financial-Services
- Real-Time
apis:
- name: One Trading WebSocket Streams API
  description: Real-time WebSocket API for market data (order book, price ticks, book ticker) and, after authenticating, private
    trading events (order lifecycle, trades, settlement, funding payments, balance adjustments).
  humanURL: https://docs.onetrading.com/websocket.md
  baseURL: wss://streams.fast.onetrading.com
  tags:
  - WebSocket
  - Streaming
  - Event
  tags_raw:
  - WebSocket
  - Streaming
  - Events
  properties:
  - type: AsyncAPI
    url: asyncapi/one-trading-streams-asyncapi.yml
  - type: Webhooks
    url: asyncapi/one-trading-streams-asyncapi.yml
- aid: one-trading:one-trading-funding-api
  name: One Trading Funding API
  description: Subaccount balance transfers
  humanURL: https://docs.onetrading.com
  baseURL: https://api.onetrading.com/fast
  tags:
  - Funding
  properties:
  - type: OpenAPI
    url: openapi/one-trading-funding-api-openapi.yml
  - type: Documentation
    url: https://docs.onetrading.com
  - type: Authentication
    url: authentication/one-trading-authentication.yml
- aid: one-trading:one-trading-futures-api
  name: One Trading Futures API
  description: Futures positions, funding and portfolio endpoints
  humanURL: https://docs.onetrading.com
  baseURL: https://api.onetrading.com/fast
  tags:
  - Futures
  properties:
  - type: OpenAPI
    url: openapi/one-trading-futures-api-openapi.yml
  - type: Documentation
    url: https://docs.onetrading.com
  - type: Authentication
    url: authentication/one-trading-authentication.yml
- aid: one-trading:one-trading-public-api
  name: One Trading Public API
  description: Public market-data endpoints (no authentication)
  humanURL: https://docs.onetrading.com
  baseURL: https://api.onetrading.com/fast
  tags:
  - Public
  properties:
  - type: OpenAPI
    url: openapi/one-trading-public-api-openapi.yml
  - type: Documentation
    url: https://docs.onetrading.com
  - type: Authentication
    url: authentication/one-trading-authentication.yml
- aid: one-trading:one-trading-trading-api
  name: One Trading API
  description: Account order and trade endpoints (Bearer token, TRADE/READ scope)
  humanURL: https://docs.onetrading.com
  baseURL: https://api.onetrading.com/fast
  tags:
  - Trading
  properties:
  - type: OpenAPI
    url: openapi/one-trading-trading-api-openapi.yml
  - type: Documentation
    url: https://docs.onetrading.com
  - type: Authentication
    url: authentication/one-trading-authentication.yml
common:
- type: Overlay
  url: overlays/one-trading-fast-overlay.yaml
- type: DomainSecurity
  url: security/one-trading-domain-security.yml
- type: Website
  url: https://onetrading.com
- type: Documentation
  url: https://docs.onetrading.com
- type: APIReference
  url: https://docs.onetrading.com/rest/public/currencies
- type: GettingStarted
  url: https://support.onetrading.com/hc/en-gb/articles/16357722538129-What-should-I-know-about-One-Trading-API
- type: Support
  url: https://support.onetrading.com/hc/en-gb
- type: Blog
  url: https://onetrading.com/blog
- type: GitHubOrganization
  url: https://github.com/one-trading
- type: Pricing
  url: https://onetrading.com/fees
- type: Login
  url: https://account.onetrading.com/login
- type: TermsOfService
  url: https://onetrading.com/terms
- type: PrivacyPolicy
  url: https://onetrading.com/privacy-policy
- type: LLMsTxt
  url: llms/one-trading-llms.txt
- type: Authentication
  url: authentication/one-trading-authentication.yml
- type: Conventions
  url: conventions/one-trading-conventions.yml
- type: Idempotency
  url: conventions/one-trading-conventions.yml
- type: ErrorCatalog
  url: errors/one-trading-problem-types.yml
- type: Lifecycle
  url: lifecycle/one-trading-lifecycle.yml
- type: DataModel
  url: data-model/one-trading-data-model.yml
- type: Conformance
  url: conformance/one-trading-conformance.yml
- type: Packages
  url: packages/one-trading-packages.yml
- type: X-MCPServerCandidate
  url: mcp/one-trading-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: AsyncAPI
  url: asyncapi/one-trading-streams-asyncapi.yml
- type: Webhooks
  url: asyncapi/one-trading-streams-asyncapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 16
  pass: local-v1

One Trading API — frequently asked questions

Does One Trading have an API?

Yes. APIs.io lists 5 APIs from One Trading, including One Trading WebSocket Streams API, One Trading Funding API and One Trading Futures API, and 2 more.

Is there an OpenAPI specification for the One Trading API?

Yes. APIs.io indexes 4 OpenAPI specifications for One Trading, each linked for download from this page.

How do I authenticate with the One Trading API?

One Trading uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as One Trading Authentication.

Is the One Trading API ready for AI agents?

One Trading has a Kin Score of 34.0 out of 100 (thin) and an Agent Readiness score of 28.7 (agent-ready), scored by API Evangelist on 2026-11-06.

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