BoringToolsKit

BoringToolsKit offers a free collection of private, no‑signup browser calculators and everyday tools covering finance, health, education, construction, and more. All calculations run locally in the user’s browser, ensuring privacy and instant results without accounts or uploads. The site provides detailed formulas, assumptions, and sources for each tool, plus editorial standards and methodology documentation.

BoringToolsKit publishes 2 API contracts indexed on the APIs.io network: Privacy region API and Usage events API. Tagged areas include Tools, Finance, Health, Education, and Construction.

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

BoringToolsKit’s developer surface includes engineering blog, documentation, and 17 more developer resources.

🌐 Visit website📡 Profile data on GitHub
25.3/100 emerging Agent 24/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
1 published contract 1 MCP Servers
ToolsFinanceHealthEducationConstructionFree

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Composite quality — 25.3/100 · emerging
Contract Quality 10.7 / 21
Developer Ergonomics 1.0 / 17
Access Clarity 1.8 / 17
Operational Transparency 0.3 / 11
Contract Governance 2.2 / 10
Discoverability 5.5 / 9
Regulatory Posture 1.8 / 15
Agent readiness — 24/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 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 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
MCP Tool Quality 6 / 6
Regulatory Posture applies to this provider. Its tags matched the Health 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/.
Show this score on your site. Kin Score badge preview for BoringToolsKit It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/boringtoolskit-com/"><img src="https://apis.io/badge/boringtoolskit-com/card.svg" alt="BoringToolsKit on APIs.io — Kin Score by API Evangelist"></a>
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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)
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
9 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/boringtoolskit-com/apis.yml: open an issue on github.com/api-evangelist/boringtoolskit-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 →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)
measured — observed by APIs.io (documented)
OpenAPI
measured — observed by APIs.io (published)

APIs 2

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

BoringToolsKit Privacy region API

Resolve a visitor's privacy region for consent handling.

BoringToolsKit Usage events API

Optional, labeled, privacy-bounded usage events.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

BoringToolsKit MCP Server

MCP SERVER

Semantic Vocabularies 1

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

Boringtoolskit Com Context

1 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

BoringToolsKit API Rules

43 rules · 41 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Boringtoolskit Com Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Boringtoolskit Com Agentic Access

2 operations · 1 acting

2 operations · 1 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 MCPServer
MCPServer

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 JSONLD
JSONLD
 Vocabulary
Vocabulary
 DataModel
DataModel
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Roadmap
Roadmap

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 2

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: boringtoolskit-com
name: BoringToolsKit
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://boringtoolskit.com/assets/brand/social-preview.png?v=20261018-slope-v2
description: BoringToolsKit offers a free collection of private, no‑signup browser calculators and everyday tools covering
  finance, health, education, construction, and more. All calculations run locally in the user’s browser, ensuring privacy
  and instant results without accounts or uploads. The site provides detailed formulas, assumptions, and sources for each
  tool, plus editorial standards and methodology documentation.
url: https://artifacts.apis.io/boringtoolskit-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-02'
modified: '2026-11-02'
tags:
- Tools
- Finance
- Health
- Education
- Construction
- Free
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/boringtoolskit-com-agentic-access.yml
- type: Spectral
  url: rules/boringtoolskit-com-rules.yml
- type: JSONLD
  url: json-ld/boringtoolskit-com-context.jsonld
- type: Vocabulary
  url: vocabulary/boringtoolskit-com-vocabulary.yml
- type: DataModel
  url: data-model/boringtoolskit-com-data-model.yml
- type: ErrorCatalog
  url: errors/boringtoolskit-com-problem-types.yml
- type: Conformance
  url: conformance/boringtoolskit-com-conformance.yml
- type: LLMsTxt
  url: llms/boringtoolskit-com-llms.txt
- type: WellKnown
  url: well-known/boringtoolskit-com-well-known.yml
- type: Hosts
  url: hosts/boringtoolskit-com-hosts.yml
- type: Vendors
  url: vendors/boringtoolskit-com-vendors.yml
- type: TermsOfService
  url: https://boringtoolskit.com/terms/
- type: Roadmap
  url: https://boringtoolskit.com/roadmap/
- type: PrivacyPolicy
  url: https://boringtoolskit.com/privacy/
- type: Blog
  url: https://boringtoolskit.com/blog/crawler-week/
- type: DomainSecurity
  url: security/boringtoolskit-com-domain-security.yml
- type: Website
  url: https://boringtoolskit.com/
- type: Documentation
  url: https://boringtoolskit.com/developers/
- type: MCPServer
  url: https://boringtoolskit.com/.well-known/mcp/server-card.json
apis:
- aid: boringtoolskit-com:boringtoolskit-com-privacy-region-api
  name: BoringToolsKit Privacy region API
  description: Resolve a visitor's privacy region for consent handling.
  humanURL: https://boringtoolskit.com/developers/
  baseURL: https://boringtoolskit.com
  tags:
  - Privacy region
  properties:
  - type: OpenAPI
    url: openapi/boringtoolskit-com-privacy-region-api-openapi.yml
- aid: boringtoolskit-com:boringtoolskit-com-usage-events-api
  name: BoringToolsKit Usage events API
  description: Optional, labeled, privacy-bounded usage events.
  humanURL: https://boringtoolskit.com/developers/
  baseURL: https://boringtoolskit.com
  tags:
  - Usage Events
  tags_raw:
  - Usage events
  properties:
  - type: OpenAPI
    url: openapi/boringtoolskit-com-usage-events-api-openapi.yml
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 20
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

BoringToolsKit API — frequently asked questions

Does BoringToolsKit have an API?

Yes. APIs.io lists 2 APIs from BoringToolsKit, including BoringToolsKit Privacy region API and BoringToolsKit Usage events API.

Is there an OpenAPI specification for the BoringToolsKit API?

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

Does BoringToolsKit have an MCP server?

Yes. APIs.io lists 1 MCP server for BoringToolsKit.

Is the BoringToolsKit API ready for AI agents?

BoringToolsKit has a Kin Score of 25.3 out of 100 (emerging) and an Agent Readiness score of 24.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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