Ocelot

Ocelot is an open-source API Gateway built with .NET for microservices architectures. It provides routing, authentication, rate limiting, load balancing, and service discovery features for managing and securing APIs in .NET ecosystems.

Ocelot publishes 4 API contracts indexed on the APIs.io network, including Authentication API, Cache API, Configuration API, and 1 more. Tagged areas include .NET, API Gateway, Microservices, and Open Source.

The Ocelot catalog on APIs.io includes 1 Spectral governance ruleset.

Ocelot’s developer surface includes authentication, documentation, getting-started guide, changelog, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.2/100 thin ▬ flat Agent 22/100 agent aware Front door AI 1/6 silent Heartbeat 83/100 alive self hosted · MIT Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

.NET API Gateway Microservices Open Source

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 34.2/100 · thin

Contract Quality 7.5 / 16

Developer Ergonomics 6.8 / 13

Access Clarity 0.8 / 13

Operational Transparency 2.2 / 8

Contract Governance 1.1 / 8

Discoverability 3.1 / 7

Regulatory Posture 0.9 / 15

Open Source Surface 6.5 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% 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 Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) Ask about this →

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 6.4 — up to +18.7 composite points Ask about this →
Contract Quality scores 46.1 — up to +13.5 composite points Ask about this →
Contract Governance scores 13.6 — up to +10.4 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/ocelot/apis.yml: open an issue on github.com/api-evangelist/ocelot 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 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 4

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

Ocelot API Gateway

Ocelot is an open-source .NET API Gateway that provides routing, authentication, authorization, rate limiting, load balancing, caching, and service discovery for microservices a...

Ocelot Authentication API

Obtain access tokens for the Administration API

Ocelot Cache API

Clear output cache regions

Ocelot Configuration API

Read and update the active gateway configuration

Open Collections 4

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

Ocelot Administration API

OPEN COLLECTION

Ocelot Administration Authentication API

OPEN COLLECTION

Ocelot Administration Authentication Cache API

OPEN COLLECTION

Ocelot Administration Authentication Configuration API

OPEN COLLECTION

Ocelot API pricing

Not yet checked against Ocelot's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Ocelot's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Ocelot Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ocelot Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Ocelot Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Ocelot API Rules

58 rules · 56 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

Ocelot Authentication

http · 1 scheme

SECURITY

Ocelot Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Ocelot Agentic Access

4 operations · 3 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 4

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

RateLimits

IssueTracker

ChangeLog

Community

Issue Tracker

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

License

License

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: ocelot
name: Ocelot
description: Ocelot is an open-source API Gateway built with .NET for microservices architectures. It provides routing, authentication,
  rate limiting, load balancing, and service discovery features for managing and securing APIs in .NET ecosystems.
type: Index
deliveryModel:
  model: self-hosted
  license: MIT
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ocelot.png
x-docs-platform: sphinx
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
tags:
- .NET
- API Gateway
- Microservices
- Open Source
tags_raw:
- .NET
- API Gateway
- Microservices
- Open Source
- Open-Source
url: https://raw.githubusercontent.com/api-evangelist/ocelot/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: ocelot:ocelot-gateway
  name: Ocelot API Gateway
  description: Ocelot is an open-source .NET API Gateway that provides routing, authentication, authorization, rate limiting,
    load balancing, caching, and service discovery for microservices architectures. It is configured via JSON files and integrates
    with ASP.NET Core middleware pipelines.
  humanURL: https://ocelot.readthedocs.io/en/latest/
  tags:
  - .NET
  - API Gateway
  - Microservices
  - Routing
  properties:
  - type: Documentation
    url: https://ocelot.readthedocs.io/en/latest/
  - type: GettingStarted
    url: https://ocelot.readthedocs.io/en/latest/introduction/gettingstarted.html
  - type: Reference
    url: https://ocelot.readthedocs.io/en/latest/features/configuration.html
  - type: Authentication
    url: https://ocelot.readthedocs.io/en/latest/features/authentication.html
  - type: GitHubRepository
    url: https://github.com/ThreeMammals/Ocelot
- aid: ocelot:ocelot-authentication-api
  name: Ocelot Authentication API
  description: Obtain access tokens for the Administration API
  humanURL: https://ocelot.readthedocs.io/en/latest/
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/ocelot-authentication-api-openapi.yml
  - type: Documentation
    url: https://ocelot.readthedocs.io/en/latest/features/administration.html
  - type: Authentication
    url: https://ocelot.readthedocs.io/en/latest/features/authentication.html
  - type: GitHubRepository
    url: https://github.com/ThreeMammals/Ocelot
- aid: ocelot:ocelot-cache-api
  name: Ocelot Cache API
  description: Clear output cache regions
  humanURL: https://ocelot.readthedocs.io/en/latest/
  tags:
  - Cache
  properties:
  - type: OpenAPI
    url: openapi/ocelot-cache-api-openapi.yml
  - type: Documentation
    url: https://ocelot.readthedocs.io/en/latest/features/administration.html
  - type: Authentication
    url: https://ocelot.readthedocs.io/en/latest/features/authentication.html
  - type: GitHubRepository
    url: https://github.com/ThreeMammals/Ocelot
- aid: ocelot:ocelot-configuration-api
  name: Ocelot Configuration API
  description: Read and update the active gateway configuration
  humanURL: https://ocelot.readthedocs.io/en/latest/
  tags:
  - Configuration
  properties:
  - type: OpenAPI
    url: openapi/ocelot-configuration-api-openapi.yml
  - type: Documentation
    url: https://ocelot.readthedocs.io/en/latest/features/administration.html
  - type: Authentication
    url: https://ocelot.readthedocs.io/en/latest/features/authentication.html
  - type: GitHubRepository
    url: https://github.com/ThreeMammals/Ocelot
common:
- type: Plans
  url: plans/ocelot-plans-pricing.yml
- type: RateLimits
  url: rate-limits/ocelot-rate-limits.yml
- type: FinOps
  url: finops/ocelot-finops.yml
- type: IssueTracker
  url: https://github.com/ThreeMammals/Ocelot/issues
- type: CodeOfConduct
  url: https://github.com/ThreeMammals/Ocelot/blob/develop/.github/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/ThreeMammals/Ocelot/blob/develop/.github/CONTRIBUTING.md
- type: License
  name: MIT
  url: https://github.com/ThreeMammals/Ocelot/blob/develop/LICENSE
- type: AgenticAccess
  url: agentic-access/ocelot-agentic-access.yml
- type: DomainSecurity
  url: security/ocelot-domain-security.yml
- type: Authentication
  url: authentication/ocelot-authentication.yml
- type: Website
  url: https://ocelot.readthedocs.io/
- type: Documentation
  url: https://ocelot.readthedocs.io/en/latest/
- type: GettingStarted
  url: https://ocelot.readthedocs.io/en/latest/introduction/gettingstarted.html
- type: ChangeLog
  url: https://github.com/ThreeMammals/Ocelot/releases
- type: GitHubOrganization
  url: https://github.com/ThreeMammals/Ocelot
- type: GitHubRepository
  url: https://github.com/ThreeMammals/Ocelot
- type: Community
  url: https://github.com/ThreeMammals/Ocelot/discussions
- type: Issue Tracker
  url: https://github.com/ThreeMammals/Ocelot/issues
- type: SDKs
  url: https://www.nuget.org/packages/Ocelot
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Ocelot API — frequently asked questions

Does Ocelot have an API?

Yes. APIs.io lists 4 APIs from Ocelot, including Ocelot API Gateway, Ocelot Authentication API and Ocelot Cache API, and 1 more.

Is there an OpenAPI specification for the Ocelot API?

Yes. APIs.io indexes 3 OpenAPI specifications for Ocelot, each linked for download from this page.

How do I authenticate with the Ocelot API?

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

How much does the Ocelot API cost?

APIs.io lists 3 pricing plans for Ocelot, with each plan's price, limits and inclusions under Pricing on this page.

Is the Ocelot API ready for AI agents?

Ocelot has a Kin Score of 34.2 out of 100 (thin) and an Agent Readiness score of 22.1 (agent-aware), scored by API Evangelist on 2026-11-13.

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