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 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% 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/hoverfly: 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 10

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

Hoverfly Cache API

Inspect and clear the cache of matched request-response pairs.

Hoverfly Diff API

Inspect and clear response difference reports.

Hoverfly Hoverfly API

Manage Hoverfly runtime configuration.

Hoverfly Journal API

Inspect and filter the journal of intercepted requests.

Hoverfly Logs API

Retrieve runtime logs.

Hoverfly Post-Serve Actions API

Manage post-serve actions executed after responses are served.

Hoverfly Simulation API

Manage simulation request-response pairs and metadata.

Hoverfly State API

Manage stateful keys used during simulation.

Hoverfly System API

System-level controls.

Hoverfly Templating Data API

Manage CSV-based templating data sources.

Scroll for all 10

Open Collections 12

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

API Collection

OPEN COLLECTION

Hoverfly Admin Cache API

OPEN COLLECTION

Hoverfly Admin Cache Diff API

OPEN COLLECTION

Admin Cache Hoverfly API

OPEN COLLECTION

Hoverfly Admin Cache Journal API

OPEN COLLECTION

Hoverfly Admin Cache Logs API

OPEN COLLECTION

Hoverfly Admin Cache Post-Serve Actions API

OPEN COLLECTION

Hoverfly Admin Cache Simulation API

OPEN COLLECTION

Hoverfly Admin Cache State API

OPEN COLLECTION

Hoverfly Admin Cache System API

OPEN COLLECTION

Hoverfly Admin Cache Templating Data API

OPEN COLLECTION

Hoverfly Admin API

OPEN COLLECTION

Scroll for all 12

Pricing Plans 1

Published pricing tiers and plan structures.

Hoverfly Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Hoverfly Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Hoverfly Finops

FINOPS

Security Posture 1

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

Hoverfly Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Hoverfly Agentic Access

42 operations · 23 acting · 1 human-in-the-loop

42 operations · 23 acting

AGENTIC

Resources

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 1

SDKs, sample code, and the tooling you integrate with

SourceCode

SourceCode

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: hoverfly
name: Hoverfly
description: Hoverfly is an open source API simulation tool for creating realistic mock services and capturing-replaying HTTP
  traffic for testing.
type: Index
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  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: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/hoverfly.png
tags:
- Mocking
- Testing
url: https://raw.githubusercontent.com/api-evangelist/hoverfly/refs/heads/main/apis.yml
created: '2026-03-25'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: hoverfly:hoverfly-cache-api
  name: Hoverfly Cache API
  description: Inspect and clear the cache of matched request-response pairs.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Cache
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-cache-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-diff-api
  name: Hoverfly Diff API
  description: Inspect and clear response difference reports.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Diff
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-diff-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-hoverfly-api
  name: Hoverfly Hoverfly API
  description: Manage Hoverfly runtime configuration.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Hoverfly
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-hoverfly-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-journal-api
  name: Hoverfly Journal API
  description: Inspect and filter the journal of intercepted requests.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Journal
  tags_raw:
  - Journal
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-journal-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-logs-api
  name: Hoverfly Logs API
  description: Retrieve runtime logs.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Logs
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-logs-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-post-serve-actions-api
  name: Hoverfly Post-Serve Actions API
  description: Manage post-serve actions executed after responses are served.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Post-Serve Actions
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-post-serve-actions-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-simulation-api
  name: Hoverfly Simulation API
  description: Manage simulation request-response pairs and metadata.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Simulation
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-simulation-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-state-api
  name: Hoverfly State API
  description: Manage stateful keys used during simulation.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - States
  tags_raw:
  - State
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-state-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-system-api
  name: Hoverfly System API
  description: System-level controls.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - System
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-system-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
- aid: hoverfly:hoverfly-templating-data-api
  name: Hoverfly Templating Data API
  description: Manage CSV-based templating data sources.
  humanURL: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  baseURL: http://localhost:8888
  tags:
  - Templating Data
  properties:
  - type: OpenAPI
    url: openapi/hoverfly-templating-data-api-openapi.yml
  - type: Documentation
    url: https://docs.hoverfly.io
  - type: APIReference
    url: https://docs.hoverfly.io/en/latest/pages/reference/api/api.html
  - type: SourceCode
    url: https://github.com/SpectoLabs/hoverfly
common:
- type: IssueTracker
  url: https://github.com/SpectoLabs/hoverfly/issues
- type: Releases
  url: https://github.com/SpectoLabs/hoverfly/releases
- type: ContributionGuide
  url: https://github.com/SpectoLabs/hoverfly/blob/master/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/SpectoLabs/hoverfly/blob/master/LICENSE
- type: AgenticAccess
  url: agentic-access/hoverfly-agentic-access.yml
- type: DomainSecurity
  url: security/hoverfly-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/hoverfly
- type: Website
  url: https://hoverfly.io
- type: Documentation
  url: https://docs.hoverfly.io
- type: SourceCode
  url: https://github.com/SpectoLabs/hoverfly
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/hoverfly"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/hoverfly/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/hoverfly/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.