underlayerhq-com

Underlayer provides an embedded training API for SaaS products, allowing developers to build courses via API and embed them via an iframe. It offers a headless LMS with no portal or learner accounts, pricing per course view, and supports SCORM export, webhooks, and MCP tools. The platform is built by Outworx and integrates with popular services.

underlayerhq-com is listed with 2 APIs on the APIs.io network. Tagged areas include Education, API, SaaS, Training, and LMS.

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

underlayerhq-com’s developer surface includes sandbox, documentation, API reference, getting-started guide, pricing, signup flow, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

56.9/100 strong Agent 34/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

2 APIs

EducationAPISaaSTraining LMSEmbedding

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 56.9/100 · strong

Contract Quality 9.5 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 15.1 / 17

Operational Transparency 2.6 / 11

Contract Governance 8.1 / 10

Discoverability 4.9 / 9

Regulatory Posture 5.3 / 15

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 44.8 — up to +13.8 composite points
Developer Ergonomics scores 35.7 — up to +12.9 composite points
Operational Transparency scores 23.7 — up to +9.9 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/underlayerhq-com/apis.yml: open an issue on github.com/api-evangelist/underlayerhq-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 →

APIs 2

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

Underlayer API

REST API for Underlayer's embedded training platform.

underlayerhq-com API

underlayerhq-com API as documented publicly: 61 operations. Contract generated from the documentation by API Evangelist (2026-10-31); not the provider's own document.

Pricing Plans 1

Published pricing tiers and plan structures.

Underlayerhq Com Plans Pricing

3 plans

PLANS

Semantic Vocabularies 1

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

Underlayerhq Com Context

71 classes · 59 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

underlayerhq-com API Rules

12 rules · 9 errors 2 warnings 1 info

SPECTRAL

JSON Schema 6

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

GetCollectionsIdResponse

5 properties

JSON SCHEMA

GetCoursesIdTranslatableResponse

7 properties

JSON SCHEMA

GetCoursesResponse

16 properties

JSON SCHEMA

GetIssuedCertificatesSerialResponse

9 properties

JSON SCHEMA

PatchApiV1CoursesC123Request

4 properties

JSON SCHEMA

PostApiV1CoursesCourseidScormResponse

2 properties

JSON SCHEMA

Security Posture 3

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

Underlayerhq Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Underlayerhq Com Vulnerability Disclosure

security.txt · contact published

SECURITY

Underlayerhq Com Trust Center

SOC 2, ISO 27001, GDPR

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Webhooks

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Compliance

SecurityTxt

Security

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: underlayerhq-com
name: underlayerhq-com
description: Underlayer provides an embedded training API for SaaS products, allowing developers to build courses via API
  and embed them via an iframe. It offers a headless LMS with no portal or learner accounts, pricing per course view, and
  supports SCORM export, webhooks, and MCP tools. The platform is built by Outworx and integrates with popular services.
url: https://artifacts.apis.io/underlayerhq-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The provider's public API reference page lists the base URL but no machine‑readable OpenAPI, AsyncAPI, GraphQL,
    or other spec is published.
  evidence:
  - url: https://underlayerhq.com/docs/api
    status: 200
  checked: '2026-10-31'
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Education
- API
- SaaS
- Training
- LMS
- Embedding
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://underlayerhq.com/icon.svg
common:
- type: Plans
  url: plans/underlayerhq-com-plans-pricing.yml
- type: Spectral
  url: rules/underlayerhq-com-rules.yml
- type: JSONLD
  url: json-ld/underlayerhq-com-context.jsonld
- type: Vocabulary
  url: vocabulary/underlayerhq-com-vocabulary.yml
- type: DataModel
  url: data-model/underlayerhq-com-data-model.yml
- type: Compliance
  url: https://underlayerhq.com/security
- type: Conformance
  url: conformance/underlayerhq-com-conformance.yml
- type: LLMsTxt
  url: llms/underlayerhq-com-llms.txt
- type: SecurityTxt
  url: well-known/underlayerhq-com-security.txt
- type: WellKnown
  url: well-known/underlayerhq-com-well-known.yml
- type: Hosts
  url: hosts/underlayerhq-com-hosts.yml
- type: Vendors
  url: vendors/underlayerhq-com-vendors.yml
- type: Webhooks
  url: https://underlayerhq.com/dashboard/webhooks
- type: Security
  url: https://underlayerhq.com/security
- type: Sandbox
  url: https://underlayerhq.com/sandbox
- type: TrustCenter
  url: security/underlayerhq-com-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/underlayerhq-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/underlayerhq-com-domain-security.yml
- type: Website
  url: https://underlayerhq.com/
- type: Documentation
  url: https://underlayerhq.com/docs
- type: APIReference
  url: https://underlayerhq.com/docs/api
- type: GettingStarted
  url: https://underlayerhq.com/docs/quickstart
- type: Pricing
  url: https://underlayerhq.com/pricing
- type: SignUp
  url: https://underlayerhq.com/sign-in
- type: TermsOfService
  url: https://underlayerhq.com/terms
- type: PrivacyPolicy
  url: https://underlayerhq.com/privacy
- type: GitHubOrganization
  url: https://github.com/Underlayerhq
apis:
- name: Underlayer API
  description: REST API for Underlayer's embedded training platform.
  humanURL: https://underlayerhq.com/docs/api
  baseURL: https://underlayerhq.com/api/v1
  aid: underlayerhq-com:underlayer-api
- aid: underlayerhq-com:underlayerhq-com-api
  name: underlayerhq-com API
  description: 'underlayerhq-com API as documented publicly: 61 operations. Contract generated from the documentation by API
    Evangelist (2026-10-31);

    not the provider''s own document.'
  humanURL: https://underlayerhq.com/docs/api
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/underlayerhq-com-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/underlayerhq-com-get-issued-certificates-serial-response-schema.json
  - type: JSONSchema
    url: json-schema/underlayerhq-com-get-courses-id-translatable-response-schema.json
  - type: JSONSchema
    url: json-schema/underlayerhq-com-get-courses-response-schema.json
  - type: JSONSchema
    url: json-schema/underlayerhq-com-patch-api-v1-courses-c123-request-schema.json
  - type: JSONSchema
    url: json-schema/underlayerhq-com-get-collections-id-response-schema.json
  - type: JSONSchema
    url: json-schema/underlayerhq-com-post-api-v1-courses-courseid-scorm-response-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

underlayerhq-com API — frequently asked questions

Does underlayerhq-com have an API?

Yes. APIs.io lists 2 APIs from underlayerhq-com, including Underlayer API and underlayerhq-com API.

Is there an OpenAPI specification for the underlayerhq-com API?

Yes. APIs.io indexes 1 OpenAPI specification for underlayerhq-com, each linked for download from this page.

How much does the underlayerhq-com API cost?

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

Is the underlayerhq-com API ready for AI agents?

underlayerhq-com has a Kin Score of 56.9 out of 100 (strong) and an Agent Readiness score of 34.3 (agent-ready), scored by API Evangelist on 2026-10-31.

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