Classif.io was a machine-learning classification service that offered to build a custom classification model from a written description of the customer's task, publish it as a REST API, and let prospects try an interactive demo before buying. Its site listed sixteen such demo APIs — Fashion Style Classification, Custom Car Part Identification, Surgical Instrument Classification, Retail Planogram Compliance and others — each on its own landing page, alongside a "describe your use case" intake form. The homepage credited Kindwise, the team behind Plant.id, Insect.id, Mushroom ID and crop.health, as the maker. The service is retired: the classif.io domain is no longer registered, the last live capture of the site is 2025-03-21, and no developer documentation, OpenAPI definition or other machine-readable contract survives in any public archive. See lifecycle/classif-io-lifecycle.yml for the retirement evidence.
Classif.io is listed with 1 API on the APIs.io network. Tagged areas include Apparel, Classification, Computer Vision, Fashion, and Image Recognition.
The Classif.io catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
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):
Machine-Readable Auth+10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics+8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
12 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
The Kin Score Market layer reads a provider inside its market:
its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted:
not part of the Kin Score or agent readiness.
Registered MCP server and declares compatibility are report only — not weighted.
Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
One of the sixteen demo classification APIs Classif.io advertised, named "Fashion Style classification API" in the site navigation of the last archived capture of the homepage (...
aid: classif-io
name: Classif.io
url: https://raw.githubusercontent.com/api-evangelist/classif-io/refs/heads/main/apis.yml
deliveryModel:
model: unknown
open_source: false
commercial: false
callable_host: false
label: Delivery model not determined — needs a product licence on record
confidence: low
source:
- none
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: true
try_now: false
public: false
label: Pricing not determined — a trial preceded paid volume-based tiers, but no price was ever published on a surface that
survives
confidence: low
source:
- archive
generated: '2026-09-05'
method: probed
note: 'CORRECTED 2026-09-05. This block previously read pricing "freemium" / label "Freemium" at confidence medium, derived
from plans/classif-io-plans-pricing.yml — which was a fabricated scaffold carrying three invented tiers, retired the same
day and now recording plan_count 0. The freemium label had no provider evidence behind it. The only real pricing evidence
is archived marketing copy on the 2025-03-21 capture of the homepage: "Flexible Pricing Options: After the trial — Opt
for a more cost-effective solution based on your volume, or enhance the model''s accuracy with advanced features for a
fee." That establishes a trial and volume-based paid tiers and nothing more; no figure, currency or quota was ever published.'
created: '2025-03-01'
modified: '2026-09-16'
type: Index
access: 3rd-Party
position: Consuming
specificationVersion: '0.23'
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/classif-io.png
tags:
- Apparel
- Classification
- Computer Vision
- Fashion
- Image Recognition
- Machine Learning
- Recommendations
tags_raw:
- Apparel
- Classification
- Computer Vision
- Fashion
- Image Recognition
- Machine Learning
- Recommendation
description: 'Classif.io was a machine-learning classification service that offered to build a custom classification model
from a written description of the customer''s task, publish it as a REST API, and let prospects try an interactive demo
before buying. Its site listed sixteen such demo APIs — Fashion Style Classification, Custom Car Part Identification, Surgical
Instrument Classification, Retail Planogram Compliance and others — each on its own landing page, alongside a "describe
your use case" intake form. The homepage credited Kindwise, the team behind Plant.id, Insect.id, Mushroom ID and crop.health,
as the maker. The service is retired: the classif.io domain is no longer registered, the last live capture of the site is
2025-03-21, and no developer documentation, OpenAPI definition or other machine-readable contract survives in any public
archive. See lifecycle/classif-io-lifecycle.yml for the retirement evidence.'
apis:
- aid: classif-io:fashion-style-classification-api
name: Classif.io Fashion Style Classification API
tags:
- Apparel
- Classification
- Fashion
- Recommendations
- Styles
tags_raw:
- Apparel
- Classification
- Fashion
- Recommendation
- Style
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.classif.io/fashion-style-classification-api/
properties: []
x-pointer-removals:
- url: https://www.classif.io/fashion-style-classification-api/
type: Documentation
removed: '2026-09-05'
reason: Confirmed dead. classif.io does not resolve (NXDOMAIN from 8.8.8.8, 1.1.1.1 and 9.9.9.9) and the .io registry
RDAP endpoint returns HTTP 404 for the domain object, so the registration has lapsed. Kept here as the historical record.
description: 'One of the sixteen demo classification APIs Classif.io advertised, named "Fashion Style classification API"
in the site navigation of the last archived capture of the homepage (2025-03-21). What the API actually accepted and returned
cannot be stated: its landing page, https://www.classif.io/fashion-style-classification-api/, was real and linked from
that navigation, but the Internet Archive holds no capture of it or of any other classif.io subpage, and the domain is
no longer registered. No endpoint, schema, parameter or response of this API is asserted here, because none survives on
any public surface. The API is retired along with the rest of the service — see lifecycle/classif-io-lifecycle.yml.'
common:
- type: Plans
url: plans/classif-io-plans-pricing.yml
- type: RateLimits
url: rate-limits/classif-io-rate-limits.yml
- type: FinOps
url: finops/classif-io-finops.yml
- type: Website
url: https://classif.io
- type: JSONLD
url: json-ld/classif-io-context.jsonld
- type: Spectral
url: rules/classif-io-rules.yml
- type: Lifecycle
url: lifecycle/classif-io-lifecycle.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
x-pointer-removals:
common:
- url: https://www.classif.io/
type: Website
removed: '2026-09-05'
reason: Confirmed dead and removed rather than left to rot, per the pointer-liveness rule. classif.io publishes no NS
records and returns NXDOMAIN from 8.8.8.8, 1.1.1.1 and 9.9.9.9, and the .io registry operator's RDAP endpoint answers
HTTP 404 "Object not found" for the domain object, so the registration has lapsed. This is not a bot challenge or an
edge policy — there is no host to challenge us. A lapsed .io name is re-registrable by anyone, so leaving the pointer
in place would eventually point readers at whoever picks the domain up next. The company's own site is recorded in lifecycle/classif-io-lifecycle.yml
with its last archived capture instead.
x-enrichment:
date: '2026-09-05'
status: minimal
artifacts_added: 1
pass: local-v3
x-coverage:
state: none
reason: defunct
detail: 'Classif.io is gone, not merely unreachable: the .io registration has lapsed, the zone publishes no NS records,
every resolver returns NXDOMAIN, and the registry operator''s RDAP endpoint answers HTTP 404 for the domain object, so
the site, the Fashion Style Classification API page and every /.well-known/, /openapi.json and GraphQL probe fail at DNS
before an HTTP request is made; the Internet Archive holds the homepage only — 18 rows, nothing after 2025-03-21, not
one capture of any subpage — so no contract survives anywhere to harvest.'
evidence:
- url: https://www.classif.io/fashion-style-classification-api/
status: 0
- url: https://www.classif.io/
status: 0
- url: https://api.classif.io/openapi.json
status: 0
- url: https://rdap.identitydigital.services/rdap/domain/classif.io
status: 404
- url: https://registry.npmjs.org/-/v1/search?text=classif.io
status: 200
- url: https://api.github.com/orgs/classif-io
status: 404
- url: http://web.archive.org/cdx/search/cdx?url=classif.io&matchType=domain
status: 200
checked: '2026-09-05'
x-lifecycle:
state: shuttered
reason: domain-does-not-resolve
observed: '2026-09-27'
detail: The company's own domain returned no A or AAAA record when probed. This is an observation about the domain, not
a request from the company.
indexed: false
Classif.io API — frequently asked questions
Does Classif.io have an API?
Yes. APIs.io lists 1 API from Classif.io, including Classif.io Fashion Style Classification API.
Is the Classif.io API ready for AI agents?
Classif.io has a Kin Score of 8.2 out of 100 (minimal) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-11-06.
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