FineVoice (Fineshare)

FineVoice (Fineshare) provides a free, all‑in‑one AI voice generation platform that lets users create realistic, expressive speech, clone voices, and apply audio effects without sign‑up. The service offers text‑to‑speech, voice conversion, speech‑to‑text, and a suite of creative audio tools accessible via a public API documented at api.finevoice.ai.

FineVoice (Fineshare) publishes 9 API contracts indexed on the APIs.io network, including Openapi API, Changeaudiofile API, and 7 more. Tagged areas include Company, AI, Voice, Text-to-Speech, and Audio.

The FineVoice (Fineshare) catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

FineVoice (Fineshare)’s developer surface includes changelog, authentication, API reference, documentation, engineering blog, pricing, getting-started guide, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

49.2/100 developing Agent 51/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

7 published contracts

CompanyAIVoice Text-to-Speech Audio

Kin Score

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

Composite quality — 49.2/100 · developing

Contract Quality 11.2 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 10.7 / 17

Operational Transparency 2.3 / 11

Contract Governance 2.2 / 10

Discoverability 5.8 / 9

Regulatory Posture 3.4 / 15

Agent readiness — 51/100 · 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 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 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

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics 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)
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

4 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 52.7 — up to +11.8 composite points
Operational Transparency scores 21.1 — up to +10.3 composite points
Developer Ergonomics scores 52.4 — up to +9.5 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/finevoice/apis.yml: open an issue on github.com/api-evangelist/finevoice 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 9

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

FineVoice API

FineVoice provides a public API for AI voice generation, voice conversion, speech-to-text, sound effects, music generation and audio processing as documented in their Mintlify d...

FineVoice (Fineshare) API

FineVoice (Fineshare) API as documented publicly: 14 operations. Contract generated from the documentation by API Evangelist (2026-10-22); not the provider's own document.

FineVoice (Fineshare) Openapi API

This is the documentation for the FineVoice API. If you have any questions or need assistance, please contact support@finevoice.ai.

FineVoice (Fineshare) Changeaudiofile API

API for modifying an audio file with various transformation parameters.

FineVoice (Fineshare) Listmodels API

API to list user models with pagination support.

FineVoice (Fineshare) Pagevoices API

API for retrieving a paginated list of voices with filtering options.

FineVoice (Fineshare) Getvoicedetail API

API to retrieve detailed information about a specific voice.

FineVoice (Fineshare) Uploadaudiofile API

API for uploading audio files.

FineVoice (Fineshare) Createaudiofilechanger API

API for managing audio file transformations.

Scroll for all 9

Pricing Plans 1

Published pricing tiers and plan structures.

Finevoice Plans Pricing

8 plans

PLANS

Semantic Vocabularies 1

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

Finevoice Context

24 classes · 102 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

FineVoice (Fineshare) API Rules

18 rules · 16 errors 1 warnings 1 info

SPECTRAL

12 properties

JSON SCHEMA

Scroll for all 18

Security Posture 2

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

Finevoice Authentication

1 scheme

SECURITY

Finevoice Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

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

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

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: finevoice
name: FineVoice (Fineshare)
description: FineVoice (Fineshare) provides a free, all‑in‑one AI voice generation platform that lets users create realistic,
  expressive speech, clone voices, and apply audio effects without sign‑up. The service offers text‑to‑speech, voice conversion,
  speech‑to‑text, and a suite of creative audio tools accessible via a public API documented at api.finevoice.ai.
url: https://raw.githubusercontent.com/api-evangelist/finevoice/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-22 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-22'
modified: '2026-10-22'
tags:
- Company
- AI
- Voice
- Text-to-Speech
- Audio
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: ErrorCatalog
  url: errors/finevoice-problem-types.yml
- type: Plans
  url: plans/finevoice-plans-pricing.yml
- type: Spectral
  url: rules/finevoice-rules.yml
- type: JSONLD
  url: json-ld/finevoice-context.jsonld
- type: Vocabulary
  url: vocabulary/finevoice-vocabulary.yml
- type: DataModel
  url: data-model/finevoice-data-model.yml
- type: ChangeLog
  url: changelog/finevoice-changelog.yml
- type: Authentication
  url: authentication/finevoice-authentication.yml
- type: Conformance
  url: conformance/finevoice-conformance.yml
- type: LLMsTxt
  url: llms/finevoice-llms.txt
- type: AgentCard
  url: a2a/finevoice-a2a.yml
- type: WellKnown
  url: well-known/finevoice-well-known.yml
- type: Hosts
  url: hosts/finevoice-hosts.yml
- type: Vendors
  url: vendors/finevoice-vendors.yml
- type: TermsOfService
  url: https://finevoice.ai/terms.html
- type: PrivacyPolicy
  url: https://finevoice.ai/privacy.html
- type: ChangeLog
  url: https://api.finevoice.ai/changelog
- type: DeveloperPortal
  url: https://api.finevoice.ai\
- type: APIReference
  url: https://api.finevoice.ai/llms.txt
- type: GitHubOrganization
  url: https://github.com/FineVoice
- type: DomainSecurity
  url: security/finevoice-domain-security.yml
- type: Website
  url: https://finevoice.ai
- type: Documentation
  url: https://api.finevoice.ai
- type: Blog
  url: https://finevoice.ai/blog
- type: Pricing
  url: https://finevoice.ai/pricing
- type: GettingStarted
  url: https://api.finevoice.ai/quickstart.md
apis:
- name: FineVoice API
  description: FineVoice provides a public API for AI voice generation, voice conversion, speech-to-text, sound effects, music
    generation and audio processing as documented in their Mintlify docs.
  humanURL: https://api.finevoice.ai
  baseURL: https://api.finevoice.ai
  aid: finevoice:finevoice-api-2
- aid: finevoice:finevoice-api
  name: FineVoice (Fineshare) API
  description: 'FineVoice (Fineshare) API as documented publicly: 14 operations. Contract generated from the documentation
    by API Evangelist (2026-10-22);

    not the provider''s own document.'
  humanURL: https://api.finevoice.ai/api-reference/endpoint/stt.md
  baseURL: https://apis.finevoice.ai
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/finevoice-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/finevoice-post-v1-enhancer-process-pipeline-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-post-v1-music-cover-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-post-v1-audio-stt-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-post-v1-enhancer-speech-enhancement-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-post-v1-music-musicgen-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-post-v1-audio-sfx-generation-request-schema.json
- aid: finevoice:finevoice-fineshare-openapi-api
  name: FineVoice (Fineshare) Openapi API
  description: This is the documentation for the FineVoice API. If you have any questions or need assistance, please contact
    support@finevoice.ai.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://apis.finevoice.ai
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-openapi-openapi.json
  - type: JSONSchema
    url: json-schema/finevoice-pipeline-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-music-cover-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-speech-to-text-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-speech-enhancement-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-music-generation-by-prompt-request-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-music-generation-request-schema.json
- aid: finevoice:finevoice-fineshare-changeaudiofile-api
  name: FineVoice (Fineshare) Changeaudiofile API
  description: API for modifying an audio file with various transformation parameters.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://voiceai.fineshare.net
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-changeaudiofile-openapi.json
  - type: JSONSchema
    url: json-schema/finevoice-file-change-req-model-schema.json
  - type: JSONSchema
    url: json-schema/finevoice-change-audio-file-response-schema.json
- aid: finevoice:finevoice-fineshare-listmodels-api
  name: FineVoice (Fineshare) Listmodels API
  description: API to list user models with pagination support.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://models.fineshare.net
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-listmodels-openapi.json
  - type: JSONSchema
    url: json-schema/finevoice-list-my-model-resp-model-schema.json
- aid: finevoice:finevoice-fineshare-pagevoices-api
  name: FineVoice (Fineshare) Pagevoices API
  description: API for retrieving a paginated list of voices with filtering options.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://converter.fineshare.net
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-pagevoices-openapi.json
  - type: JSONSchema
    url: json-schema/finevoice-page-voices-response-schema.json
- aid: finevoice:finevoice-fineshare-getvoicedetail-api
  name: FineVoice (Fineshare) Getvoicedetail API
  description: API to retrieve detailed information about a specific voice.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://converter.fineshare.net
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-getvoicedetail-openapi.json
  - type: JSONSchema
    url: json-schema/finevoice-get-voice-detail-resp-model-schema.json
- aid: finevoice:finevoice-fineshare-uploadaudiofile-api
  name: FineVoice (Fineshare) Uploadaudiofile API
  description: API for uploading audio files.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://upload.fineshare.net
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-uploadaudiofile-openapi.json
- aid: finevoice:finevoice-fineshare-createaudiofilechanger-api
  name: FineVoice (Fineshare) Createaudiofilechanger API
  description: API for managing audio file transformations.
  humanURL: https://github.com/FineVoice/finevoice-api-docs
  baseURL: https://voiceai.fineshare.net
  properties:
  - type: OpenAPI
    url: openapi/_original/finevoice-createaudiofilechanger-openapi.json
  - type: JSONSchema
    url: json-schema/finevoice-create-voice-changer-req-model-schema.json
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Mintlify documentation lists API endpoints but no OpenAPI/AsyncAPI/GraphQL spec is provided.
  evidence:
  - url: https://api.finevoice.ai/openapi.json
    status: 404
  checked: '2026-10-22'
x-submission-notes: Mintlify docs, 39 API-reference pages in llms.txt; /openapi.json 404
x-submitted-by: billy@fineshare.ai (apis.io/add, 2026-10-22)
x-enrichment:
  date: '2026-10-22'
  status: enriched
  artifacts_added: 56
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

FineVoice (Fineshare) API — frequently asked questions

Does FineVoice (Fineshare) have an API?

Yes. APIs.io lists 9 APIs from FineVoice (Fineshare), including FineVoice API, FineVoice (Fineshare) API and FineVoice (Fineshare) Openapi API, and 6 more.

Is there an OpenAPI specification for the FineVoice (Fineshare) API?

Yes. APIs.io indexes 8 OpenAPI specifications for FineVoice (Fineshare), each linked for download from this page.

How do I authenticate with the FineVoice (Fineshare) API?

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

How much does the FineVoice (Fineshare) API cost?

APIs.io lists 8 pricing plans for FineVoice (Fineshare), with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the FineVoice (Fineshare) API ready for AI agents?

FineVoice (Fineshare) has a Kin Score of 49.2 out of 100 (developing) and an Agent Readiness score of 51.3 (agent-ready), scored by API Evangelist on 2026-10-31.

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