Endurain

Endurain provides a self‑hosted, privacy‑first fitness tracking platform that lets users store and analyze their activity, gear, and health data on their own infrastructure. The service offers a web dashboard, mobile apps, and integrations with Strava and Garmin, all under an AGPL‑3.0 license. Endurain emphasizes data ownership, no lock‑in, and community‑driven development, with documentation, a live demo, and open‑source code available.

Endurain is listed with 2 APIs on the APIs.io network. Tagged areas include Company, Fitness, Self-hosted, Open-source, and Privacy.

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

Endurain’s developer surface includes authentication, changelog, API reference, getting-started guide, documentation, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.7/100 thin Agent 18/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

2 APIs

Company FitnessSelf-hostedOpen-sourcePrivacy

Kin Score

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

Composite quality — 29.7/100 · thin

Contract Quality 5.2 / 21

Developer Ergonomics 6.9 / 17

Access Clarity 0.0 / 17

Operational Transparency 5.8 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 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 0 / 3

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 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

11 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 24.7 — up to +18.8 composite points
Developer Ergonomics scores 40.5 — up to +11.9 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/endurain/apis.yml: open an issue on github.com/api-evangelist/endurain 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.

Endurain API

The Endurain API is documented at https://docs.endurain.com and provides endpoints for activities, authentication, gear, health data, and integrations. The documentation lists r...

Endurain API

Endurain API as documented publicly: 23 operations. Contract generated from the documentation by API Evangelist (2026-10-28); not the provider's own document.

Rate Limits 1

Documented rate limits and quota policies.

Endurain Rate Limits

5 limits

RATE LIMITS

Semantic Vocabularies 1

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

Endurain Context

22 classes · 26 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Endurain API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Endurain Openapi Overlay

0 actions · update

UNRECORDED

JSON Schema 6

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

GetProfileApiKeysResponse

9 properties

JSON SCHEMA

PostApiV1AuthMfaVerifyResponse

7 properties

JSON SCHEMA

PostApiV1ProfileApiKeysRequest

5 properties

JSON SCHEMA

PostApiV1ProfileApiKeysResponse

10 properties

JSON SCHEMA

PostApiV1PublicIdpSessionSessionidTokensResponse

6 properties

JSON SCHEMA

PostProfileIdpIdpidLinkTokenRequest

2 properties

JSON SCHEMA

Security Posture 2

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

Endurain Authentication

1 scheme

SECURITY

Endurain Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

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: endurain
name: Endurain
image: https://endurain.com/assets/img/screenshots/screenshot_home.jpg
description: Endurain provides a self‑hosted, privacy‑first fitness tracking platform that lets users store and analyze their
  activity, gear, and health data on their own infrastructure. The service offers a web dashboard, mobile apps, and integrations
  with Strava and Garmin, all under an AGPL‑3.0 license. Endurain emphasizes data ownership, no lock‑in, and community‑driven
  development, with documentation, a live demo, and open‑source code available.
url: https://artifacts.apis.io/endurain/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-28 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-28'
modified: '2026-10-28'
tags:
- Company
- Fitness
- Self-hosted
- Open-source
- Privacy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/endurain-rate-limits.yml
- type: Spectral
  url: rules/endurain-rules.yml
- type: JSONLD
  url: json-ld/endurain-context.jsonld
- type: Vocabulary
  url: vocabulary/endurain-vocabulary.yml
- type: DataModel
  url: data-model/endurain-data-model.yml
- type: Authentication
  url: authentication/endurain-authentication.yml
- type: Conformance
  url: conformance/endurain-conformance.yml
- type: Hosts
  url: hosts/endurain-hosts.yml
- type: Vendors
  url: vendors/endurain-vendors.yml
- type: GitHubOrganization
  url: https://github.com/ThreeCO
- type: ChangeLog
  url: https://github.com/endurain-project/endurain/releases
- type: APIReference
  url: https://docs.endurain.com/reference/gears/
- type: GettingStarted
  url: https://docs.endurain.com/getting-started/quick-start/
- type: Documentation
  url: https://docs.endurain.com/
- type: DomainSecurity
  url: security/endurain-domain-security.yml
- type: Website
  url: https://endurain.com
apis:
- name: Endurain API
  description: The Endurain API is documented at https://docs.endurain.com and provides endpoints for activities, authentication,
    gear, health data, and integrations. The documentation lists reference pages but no machine‑readable OpenAPI spec was
    found.
  humanURL: https://docs.endurain.com
  aid: endurain:endurain-api-2
- aid: endurain:endurain-api
  name: Endurain API
  description: 'Endurain API as documented publicly: 23 operations. Contract generated from the documentation by API Evangelist
    (2026-10-28);

    not the provider''s own document.'
  humanURL: https://docs.endurain.com/reference/garmin
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/endurain-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/endurain-post-api-v1-auth-mfa-verify-response-schema.json
  - type: JSONSchema
    url: json-schema/endurain-post-api-v1-profile-api-keys-request-schema.json
  - type: JSONSchema
    url: json-schema/endurain-post-api-v1-public-idp-session-sessionid-tokens-response-schema.json
  - type: JSONSchema
    url: json-schema/endurain-post-api-v1-profile-api-keys-response-schema.json
  - type: JSONSchema
    url: json-schema/endurain-get-profile-api-keys-response-schema.json
  - type: JSONSchema
    url: json-schema/endurain-post-profile-idp-idpid-link-token-request-schema.json
x-submission-probe: 301 https://github.com/endurain-project/endurain, 2026-10-26
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Documentation at https://docs.endurain.com lists reference pages but no OpenAPI, AsyncAPI, GraphQL, gRPC or WSDL
    files were found.
  evidence:
  - url: https://docs.endurain.com/openapi.json
    status: 404
  checked: '2026-10-28'
x-enrichment:
  date: '2026-10-28'
  status: enriched
  artifacts_added: 24
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Endurain API — frequently asked questions

Does Endurain have an API?

Yes. APIs.io lists 2 APIs from Endurain, including Endurain API and Endurain API.

Is there an OpenAPI specification for the Endurain API?

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

How do I authenticate with the Endurain API?

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

Is the Endurain API ready for AI agents?

Endurain has a Kin Score of 29.7 out of 100 (thin) and an Agent Readiness score of 17.6 (agent-aware), scored by API Evangelist on 2026-10-31.

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