Cronometer

Cronometer is a Canadian nutrition tracking app and calorie counter, started in 2005 by founder Aaron Davidson. It tracks macronutrients, micronutrients, exercise and biometrics, using verified, lab-analyzed food data from sources such as the Nutrition Coordinating Center and the USDA rather than crowdsourced entries. It ships web, iOS and Android apps with a free Basic tier and a paid Gold subscription, plus Cronometer Pro for dietitians, nutritionists, trainers and health coaches, and an Enterprise offering for healthcare, research and education. It does not publish a public developer API: no developer portal or API documentation was found on cronometer.com, and community forum threads say API access is only given to select partners.

Cronometer is profiled on the APIs.io network. Tagged areas include Company, Nutrition, Health, Fitness, and Calorie Counter.

Cronometer’s developer surface includes engineering blog, support, pricing, signup flow, YouTube channel, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

26.1/100 emerging Agent 24/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

0 APIs

Company Nutrition Health FitnessCalorie CounterDiet TrackingMobile App Wellness

Kin Score

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

Composite quality — 26.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 13.0 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 5.0 / 15

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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 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 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.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/cronometer/"><img src="https://apis.io/badge/cronometer/card.svg" alt="Cronometer on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 7.1 — up to +18.6 composite points
Contract Governance scores 0.0 — up to +12.0 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/cronometer/apis.yml: open an issue on github.com/api-evangelist/cronometer 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 →

Markets this provider is in provisional

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.

Market	Position	Depth	Registered MCP server	Declares compatibility
Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification)	covered	34.5 (thin)	-	-

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.

Pricing Plans 1

Published pricing tiers and plan structures.

Cronometer Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cronometer Rate Limits

0 limits

RATE LIMITS

Security Posture 3

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

Cronometer Authentication

0 schemes

SECURITY

Cronometer Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Cronometer Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Cronometer Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Access & Security 4

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Security

Security

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 2

Status, limits, changes, and where to get help

Support

Support

Forum

Forum

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 4

The organization behind the API

Website

Blog

About

Twitter

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: cronometer
name: Cronometer
description: 'Cronometer is a Canadian nutrition tracking app and calorie counter, started in 2005 by founder Aaron Davidson.
  It tracks macronutrients, micronutrients, exercise and biometrics, using verified, lab-analyzed food data from sources such
  as the Nutrition Coordinating Center and the USDA rather than crowdsourced entries. It ships web, iOS and Android apps with
  a free Basic tier and a paid Gold subscription, plus Cronometer Pro for dietitians, nutritionists, trainers and health coaches,
  and an Enterprise offering for healthcare, research and education. It does not publish a public developer API: no developer
  portal or API documentation was found on cronometer.com, and community forum threads say API access is only given to select
  partners.'
url: https://raw.githubusercontent.com/api-evangelist/cronometer/refs/heads/main/apis.yml
x-type: company
x-source: harvest:kin-score-markets
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-18 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-18'
modified: '2026-10-18'
tags:
- Company
- Nutrition
- Health
- Fitness
- Calorie Counter
- Diet Tracking
- Mobile App
- Wellness
tags_raw:
- Company
- Nutrition
- Health
- Fitness
- Calorie Counter
- Diet Tracking
- Mobile Apps
- Wellness
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://cronometer.com/blog/wp-content/uploads/2022/07/crono-social-share-1.png
common:
- type: Plans
  url: plans/cronometer-plans-pricing.yml
- type: SecurityTxt
  url: well-known/cronometer-security.txt
- type: WellKnown
  url: well-known/cronometer-well-known.yml
- type: Hosts
  url: hosts/cronometer-hosts.yml
- type: Vendors
  url: vendors/cronometer-vendors.yml
- type: VulnerabilityDisclosure
  url: security/cronometer-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/cronometer-domain-security.yml
- type: Website
  url: https://cronometer.com
- type: Blog
  url: https://blog.cronometer.com/
- type: Support
  url: https://support.cronometer.com/hc/en-us
- type: Forum
  url: https://forums.cronometer.com/
- type: Pricing
  url: https://cronometer.com/gold/
- type: SignUp
  url: https://cronometer.com/signup/
- type: Login
  url: https://cronometer.com/login/
- type: TermsOfService
  url: https://cronometer.com/terms/
- type: PrivacyPolicy
  url: https://cronometer.com/privacy/
- type: About
  url: https://cronometer.com/about/
- type: Security
  url: https://cronometer.com/features/data-security.html
- type: Twitter
  url: https://twitter.com/cronometer
- type: YouTube
  url: https://www.youtube.com/channel/UCX4_3R4oVBU3Ff5Jmh1iJbw
apis: []
x-coverage:
  state: covered
  reason: identity-verified
  detail: Website https://cronometer.com verified (title names Cronometer). No developer portal, API docs, GitHub org (github.com/cronometer
    404) or public API found; forum threads say API access is partner-only.
  evidence:
  - url: https://cronometer.com
    status: 200
  - url: https://cronometer.com/about/
    status: 200
  - url: https://cronometer.com/gold/
    status: 200
  - url: https://github.com/cronometer
    status: 404
  - url: https://forums.cronometer.com/discussion/comment/14491
    status: search-result
x-enrichment:
  date: '2026-10-18'
  status: enriched
  artifacts_added: 25
  pass: modular-v1
  engine: identity=anthropic,contract=anthropic,surfaces=anthropic,docs=deepseek,regulatory=anthropic

Cronometer API — frequently asked questions

How do I authenticate with the Cronometer API?

Cronometer documents its authentication (0 schemes). The details are profiled on APIs.io as Cronometer Authentication.

How much does the Cronometer API cost?

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

Is the Cronometer API ready for AI agents?

Cronometer has a Kin Score of 26.1 out of 100 (emerging) and an Agent Readiness score of 24.1 (agent-aware), scored by API Evangelist on 2026-10-31.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/cronometer"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/cronometer/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/cronometer/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.