Extralingo

Extralingo connects language learners with schools worldwide, offering comparisons, reviews, and guaranteed low prices. The platform helps students find the best language school abroad, providing detailed information, student feedback, and tools to book courses efficiently. It aims to simplify the search and enrollment process for language education overseas.

Extralingo publishes 5 API contracts indexed on the APIs.io network, including Bookings API, Destinations API, Meta API, and 2 more. Tagged areas include Education, Language Learning, Travel, Comparison, and Reviews.

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

Extralingo’s developer surface includes authentication, documentation, engineering blog, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

40.3/100 developing Agent 59/100 agent native Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 MCP Servers 3 Agent Skills

Education Language Learning Travel Comparison Reviews

Kin Score

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

Composite quality — 40.3/100 · developing

Contract Quality 13.2 / 21

Developer Ergonomics 4.4 / 17

Access Clarity 4.7 / 17

Operational Transparency 1.8 / 11

Contract Governance 2.2 / 10

Discoverability 6.4 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 59/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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 Education & Research 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's Ask about this →
Dry-Run / Simulate Mode +4 pts — OpenAPI: destructive operations expose a dry_run / simulate / preview / validate_only parameter Ask about this →
Consent & Bot Identity +3 pts — common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures Ask about this →

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

Developer Ergonomics scores 25.6 — up to +14.9 composite points Ask about this →
Access Clarity scores 27.7 — up to +14.5 composite points Ask about this →
Operational Transparency scores 16.7 — up to +10.8 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.

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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/extralingo-com/apis.yml: open an issue on github.com/api-evangelist/extralingo-com 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 5

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.

Agent2Agent

measured — observed by APIs.io (flavored)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

Extralingo Bookings API

Unpaid booking submit after email verification

Extralingo Destinations API

Search cities, countries and languages

Extralingo Meta API

Service metadata

Extralingo Schools API

Search and compare language schools

Extralingo Trips API

Saved trip configurations (not bookings)

MCP Servers 1

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

Extralingo MCP Server

Remote MCP server at www.extralingo.com.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

extralingo-com-bookings-create-from-quote

AGENT SKILL

extralingo-com-search-and-view-school

AGENT SKILL

extralingo-com-trips-create-and-price

AGENT SKILL

Semantic Vocabularies 1

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

Extralingo Com Context

5 classes · 33 properties

JSON-LD

Spectral Rules 1

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

Extralingo API Rules

56 rules · 52 error-severity 2 warn-severity 2 info-severity

SPECTRAL

JSON Schema 4

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

SchoolSearchRequest

15 properties

JSON SCHEMA

SchoolSearchResponse

2 properties

JSON SCHEMA

TripEmailedResponse

7 properties

JSON SCHEMA

TripSavedResponse

11 properties

JSON SCHEMA

Security Posture 3

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

Extralingo Authentication

1 scheme

SECURITY

Extralingo Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Extralingo Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Extralingo Agentic Access

16 operations · 4 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

Lifecycle

ErrorCatalog

Conformance

Scroll for all 9

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 6

Authentication, authorization, and security posture

Security

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Deprecation

Deprecation

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: extralingo-com
name: Extralingo
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://img.imageboss.me/extralingo-main-uploads/cover/1200x630/fp-x:0.5,fp-y:0.5,quality:82/home-001.jpg?mtime=1718650852
description: Extralingo connects language learners with schools worldwide, offering comparisons, reviews, and guaranteed low
  prices. The platform helps students find the best language school abroad, providing detailed information, student feedback,
  and tools to book courses efficiently. It aims to simplify the search and enrollment process for language education overseas.
url: https://artifacts.apis.io/extralingo-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Education
- Language Learning
- Travel
- Comparison
- Reviews
tags_raw:
- Education
- LanguageLearning
- Travel
- Comparison
- Reviews
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/extralingo-com-agentic-access.yml
- type: Spectral
  url: rules/extralingo-com-rules.yml
- type: JSONLD
  url: json-ld/extralingo-com-context.jsonld
- type: Vocabulary
  url: vocabulary/extralingo-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/extralingo-com-data-model.yml
- type: Idempotency
  url: conventions/extralingo-com-conventions.yml
- type: Conventions
  url: conventions/extralingo-com-conventions.yml
- type: Security
  url: security/extralingo-com-vulnerability-disclosure.yml
- type: Authentication
  url: authentication/extralingo-com-authentication.yml
- type: Deprecation
  url: lifecycle/extralingo-com-lifecycle.yml
- type: Lifecycle
  url: lifecycle/extralingo-com-lifecycle.yml
- type: ErrorCatalog
  url: errors/extralingo-com-problem-types.yml
- type: Conformance
  url: conformance/extralingo-com-conformance.yml
- type: LLMsTxt
  url: llms/extralingo-com-llms.txt
- type: AgentCard
  url: a2a/extralingo-com-a2a.yml
- type: ToolCrosswalk
  url: mcp/extralingo-com-tool-crosswalk.yml
- type: MCPServer
  url: mcp/extralingo-com-mcp.yml
- type: SecurityTxt
  url: well-known/extralingo-com-security.txt
- type: SecurityTxt
  url: well-known/extralingo-com-extralingo-security.txt
- type: WellKnown
  url: well-known/extralingo-com-well-known.yml
- type: Hosts
  url: hosts/extralingo-com-hosts.yml
- type: Vendors
  url: vendors/extralingo-com-vendors.yml
- type: Login
  url: https://www.extralingo.com/en/login
- type: VulnerabilityDisclosure
  url: security/extralingo-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/extralingo-com-domain-security.yml
- type: Website
  url: https://www.extralingo.com/en
- type: Documentation
  url: https://www.extralingo.com/en/developers
- type: Blog
  url: https://www.extralingo.com/en/blog
- type: TermsOfService
  url: https://www.extralingo.com/en/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.extralingo.com/en/privacy-policy
apis:
- aid: extralingo-com:extralingo-com-bookings-api
  name: Extralingo Bookings API
  description: Unpaid booking submit after email verification
  humanURL: https://www.extralingo.com/en/developers
  baseURL: https://www.extralingo.com/api/v1
  tags:
  - Booking
  tags_raw:
  - bookings
  properties:
  - type: OpenAPI
    url: openapi/extralingo-com-bookings-api-openapi.yml
- aid: extralingo-com:extralingo-com-destinations-api
  name: Extralingo Destinations API
  description: Search cities, countries and languages
  humanURL: https://www.extralingo.com/en/developers
  baseURL: https://www.extralingo.com/api/v1
  tags:
  - Destination
  tags_raw:
  - destinations
  properties:
  - type: OpenAPI
    url: openapi/extralingo-com-destinations-api-openapi.yml
- aid: extralingo-com:extralingo-com-meta-api
  name: Extralingo Meta API
  description: Service metadata
  humanURL: https://www.extralingo.com/en/developers
  baseURL: https://www.extralingo.com/api/v1
  tags:
  - Meta
  tags_raw:
  - meta
  properties:
  - type: OpenAPI
    url: openapi/extralingo-com-meta-api-openapi.yml
- aid: extralingo-com:extralingo-com-schools-api
  name: Extralingo Schools API
  description: Search and compare language schools
  humanURL: https://www.extralingo.com/en/developers
  baseURL: https://www.extralingo.com/api/v1
  tags:
  - Schools
  tags_raw:
  - schools
  properties:
  - type: OpenAPI
    url: openapi/extralingo-com-schools-api-openapi.yml
  - type: JSONSchema
    url: json-schema/extralingo-com-school-search-request-schema.json
  - type: JSONSchema
    url: json-schema/extralingo-com-school-search-response-schema.json
- aid: extralingo-com:extralingo-com-trips-api
  name: Extralingo Trips API
  description: Saved trip configurations (not bookings)
  humanURL: https://www.extralingo.com/en/developers
  baseURL: https://www.extralingo.com/api/v1
  tags:
  - Trips
  tags_raw:
  - trips
  properties:
  - type: OpenAPI
    url: openapi/extralingo-com-trips-api-openapi.yml
  - type: JSONSchema
    url: json-schema/extralingo-com-trip-saved-response-schema.json
  - type: JSONSchema
    url: json-schema/extralingo-com-trip-emailed-response-schema.json
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 47
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Extralingo API — frequently asked questions

Does Extralingo have an API?

Yes. APIs.io lists 5 APIs from Extralingo, including Extralingo Bookings API, Extralingo Destinations API and Extralingo Meta API, and 2 more.

Is there an OpenAPI specification for the Extralingo API?

Yes. APIs.io indexes 5 OpenAPI specifications for Extralingo, each linked for download from this page.

How do I authenticate with the Extralingo API?

Extralingo documents its authentication (1 scheme). The details are profiled on APIs.io as Extralingo Authentication.

Does Extralingo have an MCP server?

Yes. APIs.io lists 1 MCP server for Extralingo: Remote MCP server at www.extralingo.com.

Is the Extralingo API ready for AI agents?

Extralingo has a Kin Score of 40.3 out of 100 (developing) and an Agent Readiness score of 59.2 (agent-native), scored by API Evangelist on 2026-11-13.

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