ZeroEntropy website screenshot

ZeroEntropy

ZeroEntropy builds specialized, lightweight AI models for information retrieval and retrieval-augmented generation (RAG). Its zerank rerankers and zembed embedding models improve the accuracy of any search pipeline, and its hosted retrieval API lets developers create collections, index documents, and run relevance queries (top documents, pages, and snippets) with metadata filtering. The API is a versioned (/v1) HTTP JSON service with US and EU data-center endpoints, official Python and TypeScript SDKs, and API-key bearer authentication. ZeroEntropy is a portfolio company of Initialized Capital operating in the enterprise AI / search sector.

ZeroEntropy publishes 7 API contracts indexed on the APIs.io network, including Admin API, Collections API, Documents API, and 4 more. Tagged areas include Company, Enterprise Saas, Artificial Intelligence, Search, and Retrieval.

ZeroEntropy’s developer surface includes authentication, documentation, API reference, quickstart, signup flow, pricing, engineering blog, and 16 more developer resources.

🌐 Visit website📡 Profile data on GitHub
48.2/100 developing ▲ 6.4 Agent 28/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0
2 published contracts
CompanyEnterprise SaasArtificial IntelligenceSearchRetrievalEmbeddingsRerankingRAG

What this lets a business do 1

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

Information & Data Management
BC-610
Models

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0
Composite quality — 48.2/100 · developing
Contract Quality 9.9 / 19
Developer Ergonomics 8.1 / 15
Access Clarity 10.3 / 15
Operational Transparency 0.3 / 10
Contract Governance 0.4 / 9
Discoverability 5.5 / 8
Regulatory Posture 4.1 / 15
Create-or-Update Ergonomics 1.1 / 10
Agent readiness — 28/100 · 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 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 0 / 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
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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/.
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/zeroentropy: 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 7

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

ZeroEntropy Admin API

The Admin API from ZeroEntropy — 7 operation(s) for admin.

ZeroEntropy Collections API

The Collections API from ZeroEntropy — 3 operation(s) for collections.

ZeroEntropy Documents API

The Documents API from ZeroEntropy — 8 operation(s) for documents.

ZeroEntropy Models API

The Models API from ZeroEntropy — 2 operation(s) for models.

ZeroEntropy Queries API

The Queries API from ZeroEntropy — 3 operation(s) for queries.

ZeroEntropy Status API

The Status API from ZeroEntropy — 1 operation(s) for status.

ZeroEntropy Usage API

The Usage API from ZeroEntropy — 6 operation(s) for usage.

Scroll for all 7

Open Collections 8

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

API Collection

OPEN COLLECTION

ZeroEntropy Admin API

OPEN COLLECTION

ZeroEntropy Admin Collections API

OPEN COLLECTION

ZeroEntropy Admin Documents API

OPEN COLLECTION

ZeroEntropy Admin Models API

OPEN COLLECTION

ZeroEntropy Admin Queries API

OPEN COLLECTION

ZeroEntropy Admin Status API

OPEN COLLECTION

ZeroEntropy Admin Usage API

OPEN COLLECTION

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Zeroentropy Plans Pricing

5 plans

PLANS

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.

Zeroentropy Openapi Overlay

3 actions · update · zeroentropy-openapi.json

GENERATED

Security Posture 3

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

Zeroentropy Authentication

http · 1 scheme

SECURITY

Zeroentropy Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Zeroentropy Trust Center

SOC 2, HIPAA

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Quickstart
Quickstart
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate
X-MCPServerCandidate
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Build 3

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 GitHubOrganization
GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 Compliance
Compliance
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap
 Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: zeroentropy
name: ZeroEntropy
description: ZeroEntropy builds specialized, lightweight AI models for information retrieval and retrieval-augmented generation
  (RAG). Its zerank rerankers and zembed embedding models improve the accuracy of any search pipeline, and its hosted retrieval
  API lets developers create collections, index documents, and run relevance queries (top documents, pages, and snippets)
  with metadata filtering. The API is a versioned (/v1) HTTP JSON service with US and EU data-center endpoints, official Python
  and TypeScript SDKs, and API-key bearer authentication. ZeroEntropy is a portfolio company of Initialized Capital operating
  in the enterprise AI / search sector.
url: https://raw.githubusercontent.com/api-evangelist/zeroentropy/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- initialized-capital
x-tier: stub
x-tier-reason: portfolio-lead
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: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://zeroentropy.dev/assets/images/ze-logo.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: vercel
tags:
- Company
- Enterprise Saas
- Artificial Intelligence
- Search
- Retrieval
- Embeddings
- Reranking
- RAG
apis:
- aid: zeroentropy:zeroentropy-admin-api
  name: ZeroEntropy Admin API
  description: The Admin API from ZeroEntropy — 7 operation(s) for admin.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Admin
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-admin-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
- aid: zeroentropy:zeroentropy-collections-api
  name: ZeroEntropy Collections API
  description: The Collections API from ZeroEntropy — 3 operation(s) for collections.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Collection
  tags_raw:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-collections-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
- aid: zeroentropy:zeroentropy-documents-api
  name: ZeroEntropy Documents API
  description: The Documents API from ZeroEntropy — 8 operation(s) for documents.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-documents-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
- aid: zeroentropy:zeroentropy-models-api
  name: ZeroEntropy Models API
  description: The Models API from ZeroEntropy — 2 operation(s) for models.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-models-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
- aid: zeroentropy:zeroentropy-queries-api
  name: ZeroEntropy Queries API
  description: The Queries API from ZeroEntropy — 3 operation(s) for queries.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Query
  tags_raw:
  - Queries
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-queries-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
- aid: zeroentropy:zeroentropy-status-api
  name: ZeroEntropy Status API
  description: The Status API from ZeroEntropy — 1 operation(s) for status.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-status-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
- aid: zeroentropy:zeroentropy-usage-api
  name: ZeroEntropy Usage API
  description: The Usage API from ZeroEntropy — 6 operation(s) for usage.
  humanURL: https://docs.zeroentropy.dev/api-reference/
  baseURL: https://api.zeroentropy.dev/v1
  tags:
  - Usage
  properties:
  - type: OpenAPI
    url: openapi/zeroentropy-usage-api-openapi.yml
  - type: Authentication
    url: authentication/zeroentropy-authentication.yml
  - type: Conventions
    url: conventions/zeroentropy-conventions.yml
  - type: Idempotency
    url: conventions/zeroentropy-conventions.yml
  - type: ErrorCatalog
    url: errors/zeroentropy-problem-types.yml
  - type: Conformance
    url: conformance/zeroentropy-conformance.yml
  - type: Lifecycle
    url: lifecycle/zeroentropy-lifecycle.yml
  - type: DataModel
    url: data-model/zeroentropy-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/zeroentropy-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/zeroentropy-capability-edges.yml
  name: ZeroEntropy Business Capability Map
- type: X-MCPServerCandidate
  url: mcp/zeroentropy-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: Overlay
  url: overlays/zeroentropy-openapi-overlay.yaml
- type: Packages
  url: packages/zeroentropy-packages.yml
- type: SDKs
  url: packages/zeroentropy-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/zeroentropy-llms.txt
- type: TrustCenter
  url: security/zeroentropy-trust-center.yml
- type: Compliance
  url: security/zeroentropy-trust-center.yml
- type: DomainSecurity
  url: security/zeroentropy-domain-security.yml
- type: Authentication
  url: authentication/zeroentropy-authentication.yml
- type: Website
  url: https://www.zeroentropy.dev/
- type: Documentation
  url: https://docs.zeroentropy.dev/
- type: APIReference
  url: https://docs.zeroentropy.dev/api-reference/
- type: Quickstart
  url: https://docs.zeroentropy.dev/quickstart
- type: SignUp
  url: https://dashboard.zeroentropy.dev/
- type: Pricing
  url: https://www.zeroentropy.dev/pricing
- type: Blog
  url: https://www.zeroentropy.dev/blog
- type: GitHubOrganization
  url: https://github.com/zeroentropy-ai
- type: TermsOfService
  url: https://www.zeroentropy.dev/terms
- type: PrivacyPolicy
  url: https://www.zeroentropy.dev/privacy
- type: Support
  url: mailto:founders@zeroentropy.dev
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 16
  pass: local-v1

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