lotsofsounds-com

Lots of Sounds provides a free CC0 sound effects library and a RESTful API for developers to search, stream, and download royalty‑free audio. The platform offers over 10,000 sounds across categories, with tools for audio conversion, trimming, and waveform generation. Plans include a free tier and paid options starting at $15/month for higher limits and commercial use. The company focuses on open licensing and easy integration for podcasts, games, videos, and AI agents.

lotsofsounds-com publishes 2 API contracts indexed on the APIs.io network: Samples API and Sounds API. Tagged areas include Company, Audio, API, Free, and CC0.

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

lotsofsounds-com’s developer surface includes authentication, documentation, API reference, getting-started guide, pricing, engineering blog, signup flow, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

56.1/100 strong Agent 49/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract

Company AudioAPIFreeCC0

Kin Score

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

Composite quality — 56.1/100 · strong

Contract Quality 13.9 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 13.0 / 17

Operational Transparency 2.9 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 49/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 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 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
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
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

3 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 26.3 — up to +9.6 composite points
Developer Ergonomics scores 52.4 — up to +9.5 composite points
Contract Governance scores 22.0 — up to +9.4 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/lotsofsounds-com/apis.yml: open an issue on github.com/api-evangelist/lotsofsounds-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.

lotsofsounds-com Samples API

Public sample endpoints - no API key required

lotsofsounds-com Sounds API

Browse, search, and download sounds

Pricing Plans 1

Published pricing tiers and plan structures.

Lotsofsounds Com Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Lotsofsounds Com Rate Limits

1 limits

RATE LIMITS

Semantic Vocabularies 1

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

Lotsofsounds Com Context

3 classes · 12 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

lotsofsounds-com API Rules

15 rules · 13 errors 1 warnings 1 info

SPECTRAL

JSON Schema 4

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

Pagination

4 properties

JSON SCHEMA

PopularSound

0 properties

JSON SCHEMA

Sound

0 properties

JSON SCHEMA

SoundSummary

7 properties

JSON SCHEMA

Security Posture 2

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

Lotsofsounds Com Authentication

1 scheme

SECURITY

Lotsofsounds Com Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Lotsofsounds Com Agentic Access

7 operations

7 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

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

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

ErrorCatalog

Conformance

Scroll for all 7

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 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: lotsofsounds-com
name: lotsofsounds-com
image: https://www.lotsofsounds.com/og?title=Lots%20of%20Sounds%3A%20Free%20CC0%20Sound%20Effects%2C%20Soundboard%20%26%20Sound%20Effects%20API
description: Lots of Sounds provides a free CC0 sound effects library and a RESTful API for developers to search, stream,
  and download royalty‑free audio. The platform offers over 10,000 sounds across categories, with tools for audio conversion,
  trimming, and waveform generation. Plans include a free tier and paid options starting at $15/month for higher limits and
  commercial use. The company focuses on open licensing and easy integration for podcasts, games, videos, and AI agents.
url: https://artifacts.apis.io/lotsofsounds-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)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- Audio
- API
- Free
- CC0
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/lotsofsounds-com-agentic-access.yml
- type: RateLimits
  url: rate-limits/lotsofsounds-com-rate-limits.yml
- type: Plans
  url: plans/lotsofsounds-com-plans-pricing.yml
- type: Spectral
  url: rules/lotsofsounds-com-rules.yml
- type: JSONLD
  url: json-ld/lotsofsounds-com-context.jsonld
- type: Vocabulary
  url: vocabulary/lotsofsounds-com-vocabulary.yml
- type: DataModel
  url: data-model/lotsofsounds-com-data-model.yml
- type: Conventions
  url: conventions/lotsofsounds-com-conventions.yml
- type: Authentication
  url: authentication/lotsofsounds-com-authentication.yml
- type: ErrorCatalog
  url: errors/lotsofsounds-com-problem-types.yml
- type: Conformance
  url: conformance/lotsofsounds-com-conformance.yml
- type: LLMsTxt
  url: llms/lotsofsounds-com-llms.txt
- type: WellKnown
  url: well-known/lotsofsounds-com-well-known.yml
- type: Hosts
  url: hosts/lotsofsounds-com-hosts.yml
- type: Vendors
  url: vendors/lotsofsounds-com-vendors.yml
- type: GitHubOrganization
  url: https://github.com/lotsofsounds
- type: DeveloperPortal
  url: https://api.lotsofsounds.com</span
- type: DomainSecurity
  url: security/lotsofsounds-com-domain-security.yml
- type: Website
  url: https://lotsofsounds.com/
- type: Documentation
  url: https://www.lotsofsounds.com/docs
- type: APIReference
  url: https://www.lotsofsounds.com/openapi.json
- type: GettingStarted
  url: https://www.lotsofsounds.com/developers
- type: Pricing
  url: https://www.lotsofsounds.com/pricing
- type: Blog
  url: https://www.lotsofsounds.com/blog
- type: SignUp
  url: https://www.lotsofsounds.com/sign-up
- type: TermsOfService
  url: https://www.lotsofsounds.com/terms
- type: PrivacyPolicy
  url: https://www.lotsofsounds.com/privacy
apis:
- aid: lotsofsounds-com:lotsofsounds-com-samples-api
  name: lotsofsounds-com Samples API
  description: Public sample endpoints - no API key required
  humanURL: https://www.lotsofsounds.com/docs/api-reference
  baseURL: https://api.lotsofsounds.com
  tags:
  - Samples
  properties:
  - type: OpenAPI
    url: openapi/lotsofsounds-com-samples-api-openapi.yml
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-sound-schema.json
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-sound-summary-schema.json
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-pagination-schema.json
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-popular-sound-schema.json
- aid: lotsofsounds-com:lotsofsounds-com-sounds-api
  name: lotsofsounds-com Sounds API
  description: Browse, search, and download sounds
  humanURL: https://www.lotsofsounds.com/docs/api-reference
  baseURL: https://api.lotsofsounds.com
  tags:
  - Sounds
  properties:
  - type: OpenAPI
    url: openapi/lotsofsounds-com-sounds-api-openapi.yml
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-sound-schema.json
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-sound-summary-schema.json
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-pagination-schema.json
  - type: JSONSchema
    url: json-schema/lotsofsounds-com-popular-sound-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

lotsofsounds-com API — frequently asked questions

Does lotsofsounds-com have an API?

Yes. APIs.io lists 2 APIs from lotsofsounds-com, including lotsofsounds-com Samples API and lotsofsounds-com Sounds API.

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

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

How do I authenticate with the lotsofsounds-com API?

lotsofsounds-com documents its authentication (1 scheme). The details are profiled on APIs.io as Lotsofsounds Com Authentication.

How much does the lotsofsounds-com API cost?

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

Is the lotsofsounds-com API ready for AI agents?

lotsofsounds-com has a Kin Score of 56.1 out of 100 (strong) and an Agent Readiness score of 48.9 (agent-ready), scored by API Evangelist on 2026-10-31.

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