Jeeng

Jeeng (formerly PowerInbox, acquired by OpenWeb in 2022 and now marketed as OpenWeb Email Monetization) is a multichannel monetization and audience-engagement platform for digital publishers. It helps publishers grow first-party, opt-in audiences and generate advertising revenue across email newsletters, websites, push notifications, and newsreader apps, reaching more than 150M opt-in subscribers. Its products — AdFill, AdServe, AdMarket, and Renderer — fill vacant ad inventory with monetized content, extend direct ad campaigns into email through existing ad servers, connect advertisers to opt-in audiences, and streamline Google Ad Manager ad-ops workflows. Publisher integration is handled through merge tags, per-newsletter ad tags, and cs_email tracking parameters plus direct Google Ad Manager integration; campaigns and reporting are managed through the portal at manage.jeeng.com. Jeeng also publishes partner Reporting & Management APIs at developers.jeeng.com — an advertiser API for campaign line and creative management plus campaign/performance reporting, and a publisher API for container, placement and publisher performance reporting — served from powerinbox.azure-api.net behind Microsoft Entra ID OAuth 2.0 client-credentials tokens. API access is not self-serve: an account manager provisions the client id and client secret.

Jeeng publishes 3 APIs on the APIs.io network: Management API, Reporting API, and Revenuestripe.onmicrosoft.com API. Tagged areas include Company, Advertising, Publishing, Email, and Push Notifications.

Jeeng’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, authentication, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.1/100 thin ▬ flat Agent 35/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

6 APIs 1 MCP Servers

Company Advertising Publishing Email Push Notifications Monetization AdTech Newsletters Audience Engagement Reporting Analytics OData Authentication

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 36.1/100 · thin

Contract Quality 13.2 / 23

Developer Ergonomics 7.2 / 18

Access Clarity 5.0 / 18

Operational Transparency 0.0 / 12

Contract Governance 0.5 / 11

Discoverability 7.3 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 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

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.

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 github.com/api-evangelist/jeeng: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

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

Jeeng Management API

The Management API from Jeeng — 3 operation(s) for management.

Jeeng Reporting API

The Reporting API from Jeeng — 6 operation(s) for reporting.

Jeeng Revenuestripe.onmicrosoft.com API

The Revenuestripe.onmicrosoft.com API from Jeeng — 1 operation(s) for revenuestripe.onmicrosoft.com.

Open Collections 3

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

Jeeng Email Monetization — Advertisers API

OPEN COLLECTION

Jeeng Email Monetization — Authentication (OAuth 2.0 token)

OPEN COLLECTION

Jeeng Email Monetization — Publishers API

OPEN COLLECTION

MCP Servers 1

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

Jeeng MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Jeeng Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Jeeng Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Jeeng Authentication

oauth2 · 1 scheme

SECURITY

Jeeng Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Jeeng Scopes

1 scope

1 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

ToolCrosswalk

ToolCrosswalk

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 5

Properties that don't map to a standard resource type

ParentCompany

CapabilityMap

Overlay

Overlay

Overlay

Source (apis.yml)

aid: jeeng
name: Jeeng
description: 'Jeeng (formerly PowerInbox, acquired by OpenWeb in 2022 and now marketed as OpenWeb Email Monetization) is a
  multichannel monetization and audience-engagement platform for digital publishers. It helps publishers grow first-party,
  opt-in audiences and generate advertising revenue across email newsletters, websites, push notifications, and newsreader
  apps, reaching more than 150M opt-in subscribers. Its products — AdFill, AdServe, AdMarket, and Renderer — fill vacant ad
  inventory with monetized content, extend direct ad campaigns into email through existing ad servers, connect advertisers
  to opt-in audiences, and streamline Google Ad Manager ad-ops workflows. Publisher integration is handled through merge tags,
  per-newsletter ad tags, and cs_email tracking parameters plus direct Google Ad Manager integration; campaigns and reporting
  are managed through the portal at manage.jeeng.com. Jeeng also publishes partner Reporting & Management APIs at developers.jeeng.com
  — an advertiser API for campaign line and creative management plus campaign/performance reporting, and a publisher API for
  container, placement and publisher performance reporting — served from powerinbox.azure-api.net behind Microsoft Entra ID
  OAuth 2.0 client-credentials tokens. API access is not self-serve: an account manager provisions the client id and client
  secret.'
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: sales
  trial: false
  try_now: false
  public: false
  label: Sales-gated partner API
  confidence: high
  source:
  - https://developers.jeeng.com/docs/publisher-overview
  - https://developers.jeeng.com/docs/advertiser-overview
  generated: '2026-08-12'
  method: searched
image: https://www.jeeng.com/wp-content/uploads/2022/04/Jeeng_w_OW.png
url: https://raw.githubusercontent.com/api-evangelist/jeeng/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
- battery-ventures
x-tier: enriched
x-tier-reason: enrichment-pipeline
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-12'
tags:
- Company
- Advertising
- Publishing
- Email
- Push Notifications
- Monetization
- AdTech
- Newsletters
- Audience Engagement
- Reporting
- Analytics
- OData
- Authentication
tags_raw:
- Company
- Advertising
- Publishing
- Email
- Push Notifications
- Monetization
- AdTech
- Newsletters
- Audience Engagement
- Reporting
- Analytics
- OData
- OAuth
apis:
- aid: jeeng:jeeng-management-api
  name: Jeeng Management API
  description: The Management API from Jeeng — 3 operation(s) for management.
  humanURL: https://developers.jeeng.com/reference
  baseURL: https://powerinbox.azure-api.net/
  tags:
  - Management
  properties:
  - type: OpenAPI
    url: openapi/jeeng-management-api-openapi.yml
  - type: Documentation
    url: https://developers.jeeng.com/docs/advertiser-overview
  - type: APIReference
    url: https://developers.jeeng.com/reference
  - type: Documentation
    url: https://developers.jeeng.com/docs/publisher-overview
  - type: Documentation
    url: https://developers.jeeng.com/reference/getting-an-access-token
  - type: APIReference
    url: https://developers.jeeng.com/reference/getting-an-access-token
- aid: jeeng:jeeng-reporting-api
  name: Jeeng Reporting API
  description: The Reporting API from Jeeng — 6 operation(s) for reporting.
  humanURL: https://developers.jeeng.com/reference
  baseURL: https://powerinbox.azure-api.net/
  tags:
  - Reporting
  properties:
  - type: OpenAPI
    url: openapi/jeeng-reporting-api-openapi.yml
  - type: Documentation
    url: https://developers.jeeng.com/docs/advertiser-overview
  - type: APIReference
    url: https://developers.jeeng.com/reference
  - type: Documentation
    url: https://developers.jeeng.com/docs/publisher-overview
  - type: Documentation
    url: https://developers.jeeng.com/reference/getting-an-access-token
  - type: APIReference
    url: https://developers.jeeng.com/reference/getting-an-access-token
- aid: jeeng:jeeng-revenuestripe-onmicrosoft-com-api
  name: Jeeng Revenuestripe.onmicrosoft.com API
  description: The Revenuestripe.onmicrosoft.com API from Jeeng — 1 operation(s) for revenuestripe.onmicrosoft.com.
  humanURL: https://developers.jeeng.com/reference
  baseURL: https://powerinbox.azure-api.net/
  tags:
  - Revenuestripe.onmicrosoft.com
  properties:
  - type: OpenAPI
    url: openapi/jeeng-revenuestripe-onmicrosoft-com-api-openapi.yml
  - type: Documentation
    url: https://developers.jeeng.com/docs/advertiser-overview
  - type: APIReference
    url: https://developers.jeeng.com/reference
  - type: Documentation
    url: https://developers.jeeng.com/docs/publisher-overview
  - type: Documentation
    url: https://developers.jeeng.com/reference/getting-an-access-token
  - type: APIReference
    url: https://developers.jeeng.com/reference/getting-an-access-token
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: ParentCompany
  url: https://apis.io/providers/openweb/
  name: OpenWeb
  x-relationship: acquired
  x-evidence: Jeeng (formerly PowerInbox, acquired by OpenWeb in 2022 and now marketed as OpenWeb Email Monetization) is a
    multichannel monetization and audience-engagement platform for digital publishers.
- type: CapabilityMap
  url: capabilities/jeeng-capability-edges.yml
  name: Jeeng Business Capability Map
- type: Overlay
  url: overlays/jeeng-advertisers-overlay.yaml
- type: Overlay
  url: overlays/jeeng-publishers-overlay.yaml
- type: Overlay
  url: overlays/jeeng-authentication-overlay.yaml
- type: Website
  url: https://jeeng.com
- type: DeveloperPortal
  url: https://developers.jeeng.com/
- type: Documentation
  url: https://developers.jeeng.com/docs/getting-started
- type: APIReference
  url: https://developers.jeeng.com/reference
- type: GettingStarted
  url: https://developers.jeeng.com/docs/getting-started
- type: TermsOfService
  url: https://www.jeeng.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.jeeng.com/privacy-policy/
- type: Support
  url: https://www.jeeng.com/contact-us/
- type: Blog
  url: https://www.jeeng.com/news/
- type: Login
  url: https://manage.jeeng.com/
- type: DomainSecurity
  url: security/jeeng-domain-security.yml
- type: LLMsTxt
  url: llms/jeeng-llms.txt
- type: Authentication
  url: authentication/jeeng-authentication.yml
- type: OAuthScopes
  url: scopes/jeeng-scopes.yml
- type: Conventions
  url: conventions/jeeng-conventions.yml
- type: ErrorCatalog
  url: errors/jeeng-problem-types.yml
- type: Lifecycle
  url: lifecycle/jeeng-lifecycle.yml
- type: Conformance
  url: conformance/jeeng-conformance.yml
- type: DataModel
  url: data-model/jeeng-data-model.yml
- type: Packages
  url: packages/jeeng-packages.yml
- type: Plans
  url: plans/jeeng-plans-pricing.yml
- type: RateLimits
  url: rate-limits/jeeng-rate-limits.yml
- type: MCPServer
  url: mcp/jeeng-mcp.yml
- type: ToolCrosswalk
  url: mcp/jeeng-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-12'
  status: enriched
  artifacts_added: 26
  pass: local-v1
  note: Round 1 recorded "Jeeng publishes no public developer API". That was wrong. STEP 0b contract discovery found a live
    ReadMe developer hub at developers.jeeng.com (readme-subdomain "jeeng") publishing three OpenAPI 3.1.0 definitions and
    ten operations against https://powerinbox.azure-api.net/, plus a served llms.txt and a gated MCP endpoint.

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