Airport Gap

Airport Gap is a RESTful API designed to help developers practice API automation testing. It provides access to a database of worldwide airports including ICAO/IATA codes, location coordinates, elevation, and country information. The API also supports calculating distances between airports in miles, kilometers, and nautical miles, and allows authenticated users to save and manage favorite airports. Data is sourced from OpenFlights.org under the Open Database License (ODbL 1.0).

Airport Gap publishes 4 API contracts indexed on the APIs.io network, including Airports API, Distance API, Favorites API, and 1 more. Tagged areas include Airports, Aviation, Transportation, IATA, and ICAO.

The Airport Gap catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Airport Gap’s developer surface includes authentication, documentation, signup flow, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.9/100 thin ▬ flat Agent 33/100 agent ready Front door AI 1/6 silent open core · MIT Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeSelf serve⚡ Free to try

1 published contract

Airports Aviation Transportation IATA ICAODistance CalculationGeolocation

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 32.9/100 · thin

Contract Quality 11.6 / 19

Developer Ergonomics 3.2 / 15

Access Clarity 2.8 / 15

Operational Transparency 1.0 / 10

Contract Governance 0.9 / 9

Discoverability 5.5 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 33/100 · agent ready

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 8 / 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.

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/.

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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
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
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)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 18.4 — up to +16.3 composite points
Developer Ergonomics scores 21.4 — up to +15.7 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points

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.

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/airport-gap/apis.yml: open an issue on github.com/api-evangelist/airport-gap 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.

Airport Gap Airports API

Retrieve airport information by IATA code or browse the full database.

Airport Gap Distance API

Calculate great-circle distances between two airports.

Airport Gap Favorites API

Manage saved favorite airports (authenticated users only).

Airport Gap Tokens API

Generate Bearer tokens for authenticated access.

Open Collections 4

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

Airport Gap REST Airports API

OPEN COLLECTION

Airport Gap REST Airports Distance API

OPEN COLLECTION

Airport Gap REST Airports Favorites API

OPEN COLLECTION

Airport Gap REST Airports Tokens API

OPEN COLLECTION

Airport Gap API pricing

Not yet checked against Airport Gap's own pricing page. Compiled by API Evangelist on 2026-06-13 from airportgap.com; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free free	—

Plan details, limits and sources →

Rate limits

Requests per minute (per IP): 100 requests per minute

Compiled by API Evangelist, not yet checked against Airport Gap's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Airport Gap Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Airport Gap Rate Limits

1 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Airport Gap

SLA

FinOps 1

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

Airport Gap Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Airport Gap Context

2 classes · 17 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Airport Gap — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 3

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

Airport

3 properties

JSON SCHEMA

AirportDistance

3 properties

JSON SCHEMA

Favorite

3 properties

JSON SCHEMA

Examples 5

Example request and response payloads for these APIs.

Delete Favorites Clear All

3 fields

EXAMPLE

Get Airport Jfk

3 fields

EXAMPLE

Post Airports Distance

3 fields

EXAMPLE

Post Favorites

3 fields

EXAMPLE

Post Tokens

3 fields

EXAMPLE

Security Posture 2

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

Airport Gap Authentication

http · 1 scheme

SECURITY

Airport Gap Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Airport Gap Agentic Access

10 operations · 6 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 1

Reference material describing how the API behaves

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

GitHubRepository

GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

License

License

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: airport-gap
name: Airport Gap
description: Airport Gap is a RESTful API designed to help developers practice API automation testing. It provides access
  to a database of worldwide airports including ICAO/IATA codes, location coordinates, elevation, and country information.
  The API also supports calculating distances between airports in miles, kilometers, and nautical miles, and allows authenticated
  users to save and manage favorite airports. Data is sourced from OpenFlights.org under the Open Database License (ODbL 1.0).
url: https://airportgap.com/docs
deliveryModel:
  model: open-core
  license: MIT
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://airportgap.com/favicon.ico
specificationVersion: '0.23'
created: '2026-06-13'
modified: '2026-06-13'
x-source: public-apis/public-apis
x-category: Transportation
x-type: open-source
x-tier: 2
x-tier-reason: enriched-from-stub
tags:
- Airports
- Aviation
- Transportation
- IATA
- ICAO
- Distance Calculation
- Geolocation
apis:
- aid: airport-gap:airport-gap-airports-api
  name: Airport Gap Airports API
  description: Retrieve airport information by IATA code or browse the full database.
  humanURL: https://airportgap.com/docs
  baseURL: https://airportgap.com/api/v1
  tags:
  - Airports
  properties:
  - type: OpenAPI
    url: openapi/airport-gap-airports-api-openapi.yml
  - type: Documentation
    url: https://airportgap.com/docs
  - type: GitHubRepository
    url: https://github.com/dennmart/airport_gap
  - type: RateLimits
    url: rate-limits/airport-gap-rate-limits.yml
  - type: Plans
    url: plans/airport-gap-plans-pricing.yml
  - type: FinOps
    url: finops/airport-gap-finops.yml
- aid: airport-gap:airport-gap-distance-api
  name: Airport Gap Distance API
  description: Calculate great-circle distances between two airports.
  humanURL: https://airportgap.com/docs
  baseURL: https://airportgap.com/api/v1
  tags:
  - Distance
  properties:
  - type: OpenAPI
    url: openapi/airport-gap-distance-api-openapi.yml
  - type: Documentation
    url: https://airportgap.com/docs
  - type: GitHubRepository
    url: https://github.com/dennmart/airport_gap
  - type: RateLimits
    url: rate-limits/airport-gap-rate-limits.yml
  - type: Plans
    url: plans/airport-gap-plans-pricing.yml
  - type: FinOps
    url: finops/airport-gap-finops.yml
- aid: airport-gap:airport-gap-favorites-api
  name: Airport Gap Favorites API
  description: Manage saved favorite airports (authenticated users only).
  humanURL: https://airportgap.com/docs
  baseURL: https://airportgap.com/api/v1
  tags:
  - Favorites
  properties:
  - type: OpenAPI
    url: openapi/airport-gap-favorites-api-openapi.yml
  - type: Documentation
    url: https://airportgap.com/docs
  - type: GitHubRepository
    url: https://github.com/dennmart/airport_gap
  - type: RateLimits
    url: rate-limits/airport-gap-rate-limits.yml
  - type: Plans
    url: plans/airport-gap-plans-pricing.yml
  - type: FinOps
    url: finops/airport-gap-finops.yml
- aid: airport-gap:airport-gap-tokens-api
  name: Airport Gap Tokens API
  description: Generate Bearer tokens for authenticated access.
  humanURL: https://airportgap.com/docs
  baseURL: https://airportgap.com/api/v1
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/airport-gap-tokens-api-openapi.yml
  - type: Documentation
    url: https://airportgap.com/docs
  - type: GitHubRepository
    url: https://github.com/dennmart/airport_gap
  - type: RateLimits
    url: rate-limits/airport-gap-rate-limits.yml
  - type: Plans
    url: plans/airport-gap-plans-pricing.yml
  - type: FinOps
    url: finops/airport-gap-finops.yml
common:
- type: IssueTracker
  url: https://github.com/dennmart/airport_gap/issues
- type: License
  name: MIT
  url: https://github.com/dennmart/airport_gap/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/airport-gap-agentic-access.yml
- type: DomainSecurity
  url: security/airport-gap-domain-security.yml
- type: Authentication
  url: authentication/airport-gap-authentication.yml
- type: Website
  url: https://airportgap.com
- type: Documentation
  url: https://airportgap.com/docs
- type: Signup
  url: https://airportgap.com/tokens/new
- type: GitHubRepository
  url: https://github.com/dennmart/airport_gap
- type: Plans
  url: plans/airport-gap-plans-pricing.yml
- type: RateLimits
  url: rate-limits/airport-gap-rate-limits.yml
- type: FinOps
  url: finops/airport-gap-finops.yml
features:
- name: Airport Data Retrieval
  description: Fetch any airport by IATA code with full details including name, city, country, IATA/ICAO codes, coordinates,
    and altitude.
- name: Paginated Airport Listings
  description: Browse the full airport database with 30 records per page using the ?page parameter.
- name: Distance Calculation
  description: Calculate the distance between any two airports by IATA code, returned in miles, kilometers, and nautical miles.
- name: Token Authentication
  description: Generate a Bearer token via POST /tokens using email and password to access protected endpoints.
- name: Favorite Airports Management
  description: Authenticated users can add, list, update (notes), and delete saved favorite airports.
- name: Bulk Favorites Clear
  description: A single endpoint removes all saved favorite airports from an account at once.
- name: JSON:API Responses
  description: All responses conform to the JSON:API specification, with standardized data, links, and pagination envelopes.
useCases:
- name: API Testing Practice
  description: Use Airport Gap as a realistic target API for practicing REST automation testing with GET, POST, PATCH, and
    DELETE workflows.
- name: Airport Lookup
  description: Integrate IATA-to-airport resolution into flight booking, travel, or logistics applications.
- name: Distance and Route Planning
  description: Calculate great-circle distances between airports for route planning, fuel estimation, or travel time approximations.
- name: Authentication Flow Testing
  description: Practice token-based authentication and Bearer token lifecycle management in test automation frameworks.
- name: CRUD Testing
  description: Validate full create, read, update, and delete flows against the favorites endpoints in integration test suites.
integrations:
- name: Open Source (MIT)
  description: Full source available at github.com/dennmart/airport_gap under the MIT License for self-hosting or contribution.
- name: OpenFlights Data
  description: Airport data sourced from OpenFlights.org under the Open Database License (ODbL 1.0).
solutions:
- name: QA and Test Automation Teams
  description: A purpose-built sandbox API for building and validating automated REST test suites.
- name: Developer Education
  description: Realistic multi-resource API with auth, pagination, and distance math for API testing courses and bootcamps.
- name: Travel and Logistics Apps
  description: Lightweight airport metadata and distance API for prototyping flight search or route planning features.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Airport Gap API — frequently asked questions

Does Airport Gap have an API?

Yes. APIs.io lists 4 APIs from Airport Gap, including Airport Gap Airports API, Airport Gap Distance API and Airport Gap Favorites API, and 1 more.

Is there an OpenAPI specification for the Airport Gap API?

Yes. APIs.io indexes 4 OpenAPI specifications for Airport Gap, each linked for download from this page.

How do I authenticate with the Airport Gap API?

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

How much does the Airport Gap API cost?

APIs.io lists 1 pricing plan for Airport Gap, with each plan's price, limits and inclusions under Pricing on this page.

Is the Airport Gap API ready for AI agents?

Airport Gap has a Kin Score of 32.9 out of 100 (thin) and an Agent Readiness score of 32.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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