Liquid M website screenshot

Liquid M

LiquidM Technology GmbH is a Berlin-based demand-side platform for programmatic advertising, founded in 2013 and backed early by Earlybird, later Bertelsmann-owned, and acquired by Smart AdServer — now Equativ — in December 2019. Its platform at platform.liquidm.com exposes two developer surfaces: a Reporting API that returns the same data as the platform's Visual Reports UI, split across more than thirty dimensions (campaign, ad, site, domain, device, geo, audience) and thirty-plus metrics (impressions, bids, bid requests, clicks, CTR, win rate, eCPM, conversion funnels, video quartiles); and a campaign Management API covering campaigns, budgets and ads. LiquidM publishes a first-party MIT-licensed JavaScript client for the Management API and an example Ruby client for the Reporting API from a 100-repo public GitHub organization, neither released to a package registry. Both APIs remain live and authenticate, but the published surface has fallen well behind the deployed one: probing confirms fifteen live v1 collections against the three the client documents, and an entirely undocumented v2 generation that answers in JSON:API. The liquidm.com marketing domain no longer serves HTTPS — its certificate expired in July 2026 — and over plain HTTP redirects to Equativ.

Liquid M publishes 5 APIs on the APIs.io network, including Ads API, Authentication API, Budgets API, and 2 more. Tagged areas include Company, Advertising, AdTech, Demand-Side Platform, and Programmatic Advertising.

Liquid M’s developer surface includes developer portal, signup flow, authentication, code examples, API reference, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub
36.7/100 thin ▬ flat Agent 52/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
AccessSelf serve
5 APIs 1 MCP Servers
CompanyAdvertisingAdTechDemand-Side PlatformProgrammatic AdvertisingMobile AdvertisingReportingAnalyticsCampaign ManagementOpenRTB

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 36.7/100 · thin
Contract Quality 14.2 / 25
Developer Ergonomics 7.3 / 20
Commercial Clarity 2.6 / 20
Operational Transparency 0.7 / 13
Governance 2.6 / 12
Discoverability 9.3 / 10
Agent readiness — 52/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/liquid-m: 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 5

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

Liquid M Ads API

The Ads API from Liquid M — 1 operation(s) for ads.

Liquid M Authentication API

Auth token issuance for the Reporting API.

Liquid M Budgets API

The Budgets API from Liquid M — 1 operation(s) for budgets.

Liquid M Campaigns API

The Campaigns API from Liquid M — 1 operation(s) for campaigns.

Liquid M Reporting API

Visual report queries across dimensions and metrics.

Open Collections 6

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

API Collection

OPEN COLLECTION

LiquidM Management Ads API

OPEN COLLECTION

LiquidM Management Ads Authentication API

OPEN COLLECTION

LiquidM Management Ads Budgets API

OPEN COLLECTION

LiquidM Management Ads Campaigns API

OPEN COLLECTION

LiquidM Management Ads Reporting API

OPEN COLLECTION

MCP Servers 1

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

liquid-m-mcp.yml

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Liquid M Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Liquid M Rate Limits

0 limits

RATE LIMITS

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

LiquidM Visual Report

3 properties

JSON SCHEMA

Examples 1

Example request and response payloads for these APIs.

Liquid M Visual Report Response

3 fields

EXAMPLE

Security Posture 2

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

Liquid M Authentication

apiKey · 1 scheme

SECURITY

Liquid M Domain Security

TLSv1.2

SECURITY

Agentic Access 1

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

Liquid M Agentic Access

7 operations · 3 acting

7 operations · 3 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal
Portal
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

JSONSchema
JSONSchema
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 Vocabulary
Vocabulary
 DataModel
DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs
 Examples
Examples

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

IssueTracker
IssueTracker
 RateLimits
RateLimits

Commercial 1

Pricing, plans, and the legal terms of use

Plans
Plans

Company 1

The organization behind the API

Website
Website

Other 2

Properties that don't map to a standard resource type

Overlay
Overlay
 Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: liquid-m
name: Liquid M
description: 'LiquidM Technology GmbH is a Berlin-based demand-side platform for programmatic advertising, founded in 2013
  and backed early by Earlybird, later Bertelsmann-owned, and acquired by Smart AdServer — now Equativ — in December 2019.
  Its platform at platform.liquidm.com exposes two developer surfaces: a Reporting API that returns the same data as the platform''s
  Visual Reports UI, split across more than thirty dimensions (campaign, ad, site, domain, device, geo, audience) and thirty-plus
  metrics (impressions, bids, bid requests, clicks, CTR, win rate, eCPM, conversion funnels, video quartiles); and a campaign
  Management API covering campaigns, budgets and ads. LiquidM publishes a first-party MIT-licensed JavaScript client for the
  Management API and an example Ruby client for the Reporting API from a 100-repo public GitHub organization, neither released
  to a package registry. Both APIs remain live and authenticate, but the published surface has fallen well behind the deployed
  one: probing confirms fifteen live v1 collections against the three the client documents, and an entirely undocumented v2
  generation that answers in JSON:API. The liquidm.com marketing domain no longer serves HTTPS — its certificate expired in
  July 2026 — and over plain HTTP redirects to Equativ.'
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
image: https://avatars.githubusercontent.com/u/5937978?v=4
url: https://raw.githubusercontent.com/api-evangelist/liquid-m/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- earlybird
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Company
- Advertising
- AdTech
- Demand-Side Platform
- Programmatic Advertising
- Mobile Advertising
- Reporting
- Analytics
- Campaign Management
- OpenRTB
apis:
- aid: liquid-m:liquid-m-ads-api
  name: Liquid M Ads API
  description: The Ads API from Liquid M — 1 operation(s) for ads.
  humanURL: https://github.com/liquidm/liquidm-reporting-api-client
  baseURL: https://platform.liquidm.com
  tags:
  - Ads
  properties:
  - type: OpenAPI
    url: openapi/liquid-m-ads-api-openapi.yml
  - type: Documentation
    url: https://github.com/liquidm/liquidm-reporting-api-client/blob/master/README.md
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-reporting-api-client
  - type: Documentation
    url: https://github.com/liquidm/liquidm-management-api
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-management-api
- aid: liquid-m:liquid-m-authentication-api
  name: Liquid M Authentication API
  description: Auth token issuance for the Reporting API.
  humanURL: https://github.com/liquidm/liquidm-reporting-api-client
  baseURL: https://platform.liquidm.com
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/liquid-m-authentication-api-openapi.yml
  - type: Documentation
    url: https://github.com/liquidm/liquidm-reporting-api-client/blob/master/README.md
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-reporting-api-client
  - type: Documentation
    url: https://github.com/liquidm/liquidm-management-api
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-management-api
- aid: liquid-m:liquid-m-budgets-api
  name: Liquid M Budgets API
  description: The Budgets API from Liquid M — 1 operation(s) for budgets.
  humanURL: https://github.com/liquidm/liquidm-reporting-api-client
  baseURL: https://platform.liquidm.com
  tags:
  - Budgets
  properties:
  - type: OpenAPI
    url: openapi/liquid-m-budgets-api-openapi.yml
  - type: Documentation
    url: https://github.com/liquidm/liquidm-reporting-api-client/blob/master/README.md
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-reporting-api-client
  - type: Documentation
    url: https://github.com/liquidm/liquidm-management-api
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-management-api
- aid: liquid-m:liquid-m-campaigns-api
  name: Liquid M Campaigns API
  description: The Campaigns API from Liquid M — 1 operation(s) for campaigns.
  humanURL: https://github.com/liquidm/liquidm-reporting-api-client
  baseURL: https://platform.liquidm.com
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/liquid-m-campaigns-api-openapi.yml
  - type: Documentation
    url: https://github.com/liquidm/liquidm-reporting-api-client/blob/master/README.md
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-reporting-api-client
  - type: Documentation
    url: https://github.com/liquidm/liquidm-management-api
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-management-api
- aid: liquid-m:liquid-m-reporting-api
  name: Liquid M Reporting API
  description: Visual report queries across dimensions and metrics.
  humanURL: https://github.com/liquidm/liquidm-reporting-api-client
  baseURL: https://platform.liquidm.com
  tags:
  - Reporting
  properties:
  - type: OpenAPI
    url: openapi/liquid-m-reporting-api-openapi.yml
  - type: Documentation
    url: https://github.com/liquidm/liquidm-reporting-api-client/blob/master/README.md
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-reporting-api-client
  - type: Documentation
    url: https://github.com/liquidm/liquidm-management-api
  - type: SourceCode
    url: https://github.com/liquidm/liquidm-management-api
common:
- type: AgenticAccess
  url: agentic-access/liquid-m-agentic-access.yml
- type: Overlay
  url: overlays/liquid-m-management-overlay.yaml
- type: IssueTracker
  url: https://github.com/liquidm/liquidm-reporting-api-client/issues
- type: GitHubOrganization
  url: https://github.com/liquidm
- type: Website
  url: https://liquidm.com
- type: Portal
  url: https://platform.liquidm.com
- type: SignUp
  url: https://platform.liquidm.com
- type: Authentication
  url: authentication/liquid-m-authentication.yml
- type: Conventions
  url: conventions/liquid-m-conventions.yml
- type: ErrorCatalog
  url: errors/liquid-m-problem-types.yml
- type: Lifecycle
  url: lifecycle/liquid-m-lifecycle.yml
- type: Conformance
  url: conformance/liquid-m-conformance.yml
- type: Vocabulary
  url: vocabulary/liquid-m-vocabulary.yml
- type: DataModel
  url: data-model/liquid-m-data-model.yml
- type: Packages
  url: packages/liquid-m-packages.yml
- type: SDKs
  url: packages/liquid-m-packages.yml
- type: Examples
  url: examples/liquid-m-visual-report-response.json
- type: JSONSchema
  url: json-schema/liquid-m-visual-report.json
- type: DomainSecurity
  url: security/liquid-m-domain-security.yml
- type: MCPServer
  url: mcp/liquid-m-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/liquid-m-llms.txt
- type: Overlay
  url: overlays/liquid-m-reporting-overlay.yaml
- type: Plans
  url: plans/liquid-m-plans-pricing.yml
- type: RateLimits
  url: rate-limits/liquid-m-rate-limits.yml
- type: APIReference
  url: https://github.com/liquidm/liquidm-reporting-api-client/blob/master/README.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 3
  pass: local-v1
  note: Live route probing of platform.liquidm.com found 15 v1 collections against 3 documented, plus an undocumented live
    v2 generation serving application/vnd.api+json. Acquisition by Smart AdServer/Equativ sourced to the acquirer's 2019-12-18
    press release. liquidm.com TLS certificate expired 2026-07-20. The false WellKnown pointer was removed — its own probe
    records a soft 404 on every path.