lemon.markets

lemon.markets is a Berlin-based, BaFin-licensed investment firm that sells brokerage infrastructure as an API. Its Brokerage API lets fintechs, banks and platforms embed investing — account opening and KYC/identification, securities accounts, order placement and execution, trades, positions, transactions, withdrawals, settlements, corporate actions, income distributions, tax exemption orders (Freistellungsauftrag) and treasury products — without building or licensing a broker-dealer stack themselves. Coverage spans 10,000+ ETFs, ETPs, stocks, bonds and funds, and the platform supports omnibus, fully disclosed and BPO (business process outsourcing) operating models. The REST API is complemented by a webhook/event surface, an Idempotency-Key contract on order placement, and a sandbox environment with published test ISINs. API access is invite-only.

lemon.markets publishes 17 API contracts indexed on the APIs.io network, including Accounts: General API, Accounts: ID+V API, Batch Orders API, and 14 more. Tagged areas include Company, Fintech, Brokerage, Investing, and Trading.

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

lemon.markets’ developer surface includes authentication, sandbox, documentation, API reference, getting-started guide, changelog, support, and 27 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.8/100 developing ▲ 5.3 Agent 45/100 agent native Front door AI 2/6 trace Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 9 Agent Skills

Company Fintech Brokerage Investing Trading Embedded Finance Banking as a Service Securities Wealth Management Germany Europe

What this lets a business do 4

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Banking Customer Management

BC-1300

Accounts: GeneralAccounts: ID+VBusinessesPersons

POST /accounts/{account_id}/identity_verification POST /businesses/{business_id}/beneficial_owners POST /businesses POST /accounts

Capital Markets Operations Management

BC-1380

Cash SettlementCorporate Actions

GET /accounts/{account_id}/corporate_actions GET /corporate_actions GET /settlement_accounts GET /settlement_accounts/{settlement_account_id}/settlements

Capital Markets Trading Management

BC-1370

Batch OrdersOrders

POST /accounts/{account_id}/batch_orders POST /accounts/{account_id}/orders/{order_id}/cancel POST /accounts/{account_id}/orders

Developer Platform & API Ecosystem Management

BC-4270

Events + Webhooks

POST /webhooks DELETE /webhooks/{webhook_id} GET /events

Kin Score

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

Composite quality — 45.8/100 · developing

Contract Quality 10.3 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 3.2 / 15

Operational Transparency 4.1 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 45/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 7 / 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 5 / 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
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)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

4 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 55.0 — up to +11.3 composite points
Contract Governance scores 18.2 — up to +9.8 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/lemonmarkets/apis.yml: open an issue on github.com/api-evangelist/lemonmarkets 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Asset and Wealth Management	distribution	9.6 (thin)	-	-
EU/EEA Payment and E-Money Institutions (PSD2 passports)	distribution	9.6 (thin)	-	-
DACH and Netherlands Financial Supervisor Registers (BaFin, FINMA, DNB)	distribution	9.6 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 17

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

lemon.markets Accounts: General API

The Accounts: General API from lemon.markets — 6 operation(s) for accounts: general.

lemon.markets Accounts: ID+V API

The Accounts: ID+V API from lemon.markets — 3 operation(s) for accounts: id+v.

lemon.markets Batch Orders API

The Batch Orders API from lemon.markets — 4 operation(s) for batch orders.

lemon.markets Businesses API

The Businesses API from lemon.markets — 5 operation(s) for businesses.

lemon.markets Cash Settlement API

The Cash Settlement API from lemon.markets — 5 operation(s) for cash settlement.

lemon.markets Corporate Actions API

The Corporate Actions API from lemon.markets — 6 operation(s) for corporate actions.

lemon.markets Documents API

The Documents API from lemon.markets — 4 operation(s) for documents.

lemon.markets Events + Webhooks API

The Events + Webhooks API from lemon.markets — 3 operation(s) for events + webhooks.

lemon.markets Instruments API

The Instruments API from lemon.markets — 4 operation(s) for instruments.

lemon.markets Money + Positions API

The Money + Positions API from lemon.markets — 9 operation(s) for money + positions.

lemon.markets Orders API

The Orders API from lemon.markets — 4 operation(s) for orders.

lemon.markets Persons API

The Persons API from lemon.markets — 4 operation(s) for persons.

lemon.markets Securities Accounts API

The Securities Accounts API from lemon.markets — 2 operation(s) for securities accounts.

lemon.markets Taxes API

The Taxes API from lemon.markets — 4 operation(s) for taxes.

lemon.markets Trades API

The Trades API from lemon.markets — 2 operation(s) for trades.

lemon.markets Treasury Mandates API

The Treasury Mandates API from lemon.markets — 9 operation(s) for treasury mandates.

lemon.markets Workflows API

Use workflows to perform repetitive tasks automatically.

Scroll for all 17

Open Collections 17

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

lemon.markets Brokerage API 🍋 Accounts: General API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Accounts: ID+V API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Batch Orders API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Businesses API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Cash Settlement API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Corporate Actions API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Documents API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Events + Webhooks API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Instruments API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Money + Positions API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Orders API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Persons API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Securities Accounts API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Taxes API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Trades API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Treasury Mandates API

OPEN COLLECTION

lemon.markets Brokerage API 🍋 Accounts: General Workflows API

OPEN COLLECTION

Scroll for all 17

Agent Skills 9

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

Consume webhook events and mirror lemon.markets state

AGENT SKILL

Consume lemon.markets webhook events

AGENT SKILL

Onboard a customer and open a securities account

AGENT SKILL

Onboard a business account on lemon.markets

AGENT SKILL

Onboard a retail investor on lemon.markets

AGENT SKILL

Place and track an order on lemon.markets

AGENT SKILL

Place, confirm and reconcile an order

AGENT SKILL

Run savings plans with lemon.markets workflows

AGENT SKILL

Set up a recurring savings plan

AGENT SKILL

Scroll for all 9

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

lemon.markets

SLA

Event Specifications 1

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

Lemonmarkets Brokerage Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

lemon.markets API Rules

53 rules · 41 errors 10 warnings 2 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.

Lemonmarkets Brokerage Overlay

10 actions · documentation · lemonmarkets-brokerage-openapi.json

DERIVED

Security Posture 2

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

Lemonmarkets Authentication

http · 1 scheme

SECURITY

Lemonmarkets Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Lemonmarkets Agentic Access

96 operations · 33 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Webhooks

Scroll for all 7

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

Deprecation

ChangeLog

ChangeLog

StatusPage

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Imprint

Imprint

Source (apis.yml)

aid: lemonmarkets
name: lemon.markets
description: lemon.markets is a Berlin-based, BaFin-licensed investment firm that sells brokerage infrastructure as an API.
  Its Brokerage API lets fintechs, banks and platforms embed investing — account opening and KYC/identification, securities
  accounts, order placement and execution, trades, positions, transactions, withdrawals, settlements, corporate actions, income
  distributions, tax exemption orders (Freistellungsauftrag) and treasury products — without building or licensing a broker-dealer
  stack themselves. Coverage spans 10,000+ ETFs, ETPs, stocks, bonds and funds, and the platform supports omnibus, fully disclosed
  and BPO (business process outsourcing) operating models. The REST API is complemented by a webhook/event surface, an Idempotency-Key
  contract on order placement, and a sandbox environment with published test ISINs. API access is invite-only.
url: https://raw.githubusercontent.com/api-evangelist/lemonmarkets/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
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://www.lemon.markets/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- creandum
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-08'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- Company
- Fintech
- Brokerage
- Investing
- Trading
- Embedded Finance
- Banking as a Service
- Securities
- Wealth Management
- Germany
- Europe
apis:
- aid: lemonmarkets:lemonmarkets-accounts-general-api
  name: 'lemon.markets Accounts: General API'
  description: 'The Accounts: General API from lemon.markets — 6 operation(s) for accounts: general.'
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - 'Accounts: General'
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-accounts-general-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-accounts-id-v-api
  name: 'lemon.markets Accounts: ID+V API'
  description: 'The Accounts: ID+V API from lemon.markets — 3 operation(s) for accounts: id+v.'
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - 'Accounts: ID+V'
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-accounts-id-v-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-batch-orders-api
  name: lemon.markets Batch Orders API
  description: The Batch Orders API from lemon.markets — 4 operation(s) for batch orders.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Batch Orders
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-batch-orders-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-businesses-api
  name: lemon.markets Businesses API
  description: The Businesses API from lemon.markets — 5 operation(s) for businesses.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Business
  tags_raw:
  - Businesses
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-businesses-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-cash-settlement-api
  name: lemon.markets Cash Settlement API
  description: The Cash Settlement API from lemon.markets — 5 operation(s) for cash settlement.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Cash Settlement
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-cash-settlement-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-corporate-actions-api
  name: lemon.markets Corporate Actions API
  description: The Corporate Actions API from lemon.markets — 6 operation(s) for corporate actions.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Corporate Actions
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-corporate-actions-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-documents-api
  name: lemon.markets Documents API
  description: The Documents API from lemon.markets — 4 operation(s) for documents.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-documents-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-events-webhooks-api
  name: lemon.markets Events + Webhooks API
  description: The Events + Webhooks API from lemon.markets — 3 operation(s) for events + webhooks.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Events (webhooks)
  tags_raw:
  - Events + Webhooks
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-events-webhooks-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-instruments-api
  name: lemon.markets Instruments API
  description: The Instruments API from lemon.markets — 4 operation(s) for instruments.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Instruments
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-instruments-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-money-positions-api
  name: lemon.markets Money + Positions API
  description: The Money + Positions API from lemon.markets — 9 operation(s) for money + positions.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Money + Positions
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-money-positions-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-orders-api
  name: lemon.markets Orders API
  description: The Orders API from lemon.markets — 4 operation(s) for orders.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-orders-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-persons-api
  name: lemon.markets Persons API
  description: The Persons API from lemon.markets — 4 operation(s) for persons.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Persons
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-persons-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-securities-accounts-api
  name: lemon.markets Securities Accounts API
  description: The Securities Accounts API from lemon.markets — 2 operation(s) for securities accounts.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Securities Accounts
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-securities-accounts-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-taxes-api
  name: lemon.markets Taxes API
  description: The Taxes API from lemon.markets — 4 operation(s) for taxes.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Tax
  tags_raw:
  - Taxes
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-taxes-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-trades-api
  name: lemon.markets Trades API
  description: The Trades API from lemon.markets — 2 operation(s) for trades.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Trade
  tags_raw:
  - Trades
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-trades-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-treasury-mandates-api
  name: lemon.markets Treasury Mandates API
  description: The Treasury Mandates API from lemon.markets — 9 operation(s) for treasury mandates.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Treasury Mandates
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-treasury-mandates-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- aid: lemonmarkets:lemonmarkets-workflows-api
  name: lemon.markets Workflows API
  description: Use workflows to perform repetitive tasks automatically.
  humanURL: https://developer.lemon.markets/
  baseURL: https://api.lemon.markets/v1
  tags:
  - Workflows
  properties:
  - type: OpenAPI
    url: openapi/lemonmarkets-workflows-api-openapi.yml
  - type: Documentation
    url: https://developer.lemon.markets/docs
  - type: APIReference
    url: https://developer.lemon.markets/reference
  - type: GettingStarted
    url: https://developer.lemon.markets/docs/getting-started
  - type: ChangeLog
    url: https://developer.lemon.markets/changelog
  - type: Sandbox
    url: sandbox/lemonmarkets-sandbox.yml
  - type: Webhooks
    url: asyncapi/lemonmarkets-brokerage-webhooks.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/lemonmarkets-capability-edges.yml
  name: lemon.markets Business Capability Map
- type: AgenticAccess
  url: agentic-access/lemonmarkets-agentic-access.yml
- type: DomainSecurity
  url: security/lemonmarkets-domain-security.yml
- type: Authentication
  url: authentication/lemonmarkets-authentication.yml
- type: Conventions
  url: conventions/lemonmarkets-conventions.yml
- type: Idempotency
  url: conventions/lemonmarkets-conventions.yml
- type: ErrorCatalog
  url: errors/lemonmarkets-problem-types.yml
- type: Lifecycle
  url: lifecycle/lemonmarkets-lifecycle.yml
- type: Deprecation
  url: https://developer.lemon.markets/changelog
- type: Conformance
  url: conformance/lemonmarkets-conformance.yml
- type: DataModel
  url: data-model/lemonmarkets-data-model.yml
- type: Packages
  url: packages/lemonmarkets-packages.yml
- type: WellKnown
  url: well-known/lemonmarkets-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/lemonmarkets-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: LLMsTxt
  url: llms/lemonmarkets-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/lemonmarkets-brokerage-webhooks.yml
- type: Sandbox
  url: sandbox/lemonmarkets-sandbox.yml
- type: Overlay
  url: overlays/lemonmarkets-brokerage-overlay.yaml
- type: Website
  url: https://www.lemon.markets/
- type: DeveloperPortal
  url: https://developer.lemon.markets/
- type: Documentation
  url: https://developer.lemon.markets/docs
- type: APIReference
  url: https://developer.lemon.markets/reference
- type: GettingStarted
  url: https://developer.lemon.markets/docs/getting-started
- type: ChangeLog
  url: https://developer.lemon.markets/changelog
- type: ChangeLog
  url: changelog/lemonmarkets-changelog.yml
  name: Structured changelog artifact
- type: StatusPage
  url: https://status.lemon.markets/
- type: GitHubOrganization
  url: https://github.com/lemon-markets
- type: Support
  url: https://www.lemon.markets/en-de/contact
- type: TermsOfService
  url: https://www.lemon.markets/en-de/terms-of-use
- type: PrivacyPolicy
  url: https://www.lemon.markets/en-de/privacy-policy
- type: Imprint
  url: https://www.lemon.markets/en-de/imprint
- type: LinkedIn
  url: https://www.linkedin.com/company/lemon-markets/
- type: Blog
  url: https://lemon.markets/en-de/blog
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence
x-merged-from:
- lemon-markets

lemon.markets API — frequently asked questions

Does lemon.markets have an API?

Yes. APIs.io lists 17 APIs from lemon.markets, including lemon.markets Accounts: General API, lemon.markets Accounts: ID+V API and lemon.markets Batch Orders API, and 14 more.

Is there an OpenAPI specification for the lemon.markets API?

Yes. APIs.io indexes 17 OpenAPI specifications for lemon.markets, each linked for download from this page.

How do I authenticate with the lemon.markets API?

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

Is the lemon.markets API ready for AI agents?

lemon.markets has a Kin Score of 45.8 out of 100 (developing) and an Agent Readiness score of 44.7 (agent-native), scored by API Evangelist on 2026-11-06.

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