indieml-app

IndieML provides the Substance API, a high‑speed, transformer‑based service that evaluates digital text for substance, depth, and clarity in under 25 ms. Designed for high‑volume pipelines, it filters content without semantic bias, offering free and paid plans, SDKs for Python and Node.js, and integrations with LangChain, Salesforce, and Zendesk. The API runs on an asynchronous FastAPI backend with INT8‑quantized ONNX models, ensuring low latency and privacy by never storing user text.

indieml-app publishes 2 API contracts indexed on the APIs.io network: Keys API and Score API. Tagged areas include AI, NLP, Text-Analysis, Machine-Learning, and API.

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

indieml-app’s developer surface includes authentication, documentation, API reference, pricing, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.9/100 developing Agent 38/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 Agent Skills

AINLPText-AnalysisMachine-LearningAPI

Kin Score

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

Composite quality — 48.9/100 · developing

Contract Quality 11.5 / 21

Developer Ergonomics 8.8 / 17

Access Clarity 6.6 / 17

Operational Transparency 0.6 / 11

Contract Governance 8.1 / 10

Discoverability 4.9 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 38/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

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):

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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
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)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 5.3 — up to +12.3 composite points
Access Clarity scores 38.9 — up to +12.2 composite points
Contract Quality scores 54.0 — up to +11.5 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/indieml-app/apis.yml: open an issue on github.com/api-evangelist/indieml-app 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.

indieml-app Keys API

The Keys API from indieml-app — 1 operation(s) for keys.

indieml-app Score API

The Score API from indieml-app — 3 operation(s) for score.

Agent Skills 1

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

score-text

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Indieml App Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Indieml App Rate Limits

0 limits

RATE LIMITS

Semantic Vocabularies 1

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

Indieml App Context

8 classes · 13 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

indieml-app API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

JSON Schema 5

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

KeyRequest

1 properties

JSON SCHEMA

ScoreBatchRequest

1 properties

JSON SCHEMA

ScoreBatchResponse

1 properties

JSON SCHEMA

ScoreRequest

1 properties

JSON SCHEMA

ScoreResponse

1 properties

JSON SCHEMA

Security Posture 2

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

Indieml App Authentication

1 scheme

SECURITY

Indieml App Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Indieml App Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Indieml App Agentic Access

4 operations · 4 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: indieml-app
name: indieml-app
description: IndieML provides the Substance API, a high‑speed, transformer‑based service that evaluates digital text for substance,
  depth, and clarity in under 25 ms. Designed for high‑volume pipelines, it filters content without semantic bias, offering
  free and paid plans, SDKs for Python and Node.js, and integrations with LangChain, Salesforce, and Zendesk. The API runs
  on an asynchronous FastAPI backend with INT8‑quantized ONNX models, ensuring low latency and privacy by never storing user
  text.
url: https://artifacts.apis.io/indieml-app/apis.yml
image: https://indieml.app/images/final-logo.svg
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- AI
- NLP
- Text-Analysis
- Machine-Learning
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/indieml-app-agentic-access.yml
- type: Plans
  url: plans/indieml-app-plans-pricing.yml
- type: Spectral
  url: rules/indieml-app-rules.yml
- type: JSONLD
  url: json-ld/indieml-app-context.jsonld
- type: Vocabulary
  url: vocabulary/indieml-app-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/indieml-app-data-model.yml
- type: Authentication
  url: authentication/indieml-app-authentication.yml
- type: ErrorCatalog
  url: errors/indieml-app-problem-types.yml
- type: Conformance
  url: conformance/indieml-app-conformance.yml
- type: LLMsTxt
  url: llms/indieml-app-llms.txt
- type: Hosts
  url: hosts/indieml-app-hosts.yml
- type: SDKs
  url: packages/indieml-app-packages.yml
- type: Packages
  url: packages/indieml-app-packages.yml
- type: DomainSecurity
  url: security/indieml-app-domain-security.yml
- type: Website
  url: https://indieml.app/
- type: DeveloperPortal
  url: https://indieml.app/docs
- type: Documentation
  url: https://indieml.app/docs
- type: APIReference
  url: https://indieml.app/openapi.json
- type: Pricing
  url: https://indieml.app/#pricing
- type: GitHubOrganization
  url: https://github.com/ezchx/indieml
apis:
- aid: indieml-app:indieml-app-keys-api
  name: indieml-app Keys API
  description: The Keys API from indieml-app — 1 operation(s) for keys.
  humanURL: https://indieml.app/docs
  tags:
  - Keys
  properties:
  - type: OpenAPI
    url: openapi/indieml-app-keys-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indieml-app-score-batch-request-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-score-batch-response-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-score-request-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-key-request-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-score-response-schema.json
- aid: indieml-app:indieml-app-score-api
  name: indieml-app Score API
  description: The Score API from indieml-app — 3 operation(s) for score.
  humanURL: https://indieml.app/docs
  tags:
  - Score
  properties:
  - type: OpenAPI
    url: openapi/indieml-app-score-api-openapi.yml
  - type: JSONSchema
    url: json-schema/indieml-app-score-batch-request-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-score-batch-response-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-score-request-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-key-request-schema.json
  - type: JSONSchema
    url: json-schema/indieml-app-score-response-schema.json
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 31
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

indieml-app API — frequently asked questions

Does indieml-app have an API?

Yes. APIs.io lists 2 APIs from indieml-app, including indieml-app Keys API and indieml-app Score API.

Is there an OpenAPI specification for the indieml-app API?

Yes. APIs.io indexes 2 OpenAPI specifications for indieml-app, each linked for download from this page.

How do I authenticate with the indieml-app API?

indieml-app uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Indieml App Authentication.

How much does the indieml-app API cost?

APIs.io lists 4 pricing plans for indieml-app, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the indieml-app API ready for AI agents?

indieml-app has a Kin Score of 48.9 out of 100 (developing) and an Agent Readiness score of 37.9 (agent-ready), scored by API Evangelist on 2026-10-31.

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