TrackCaffeine caffeine data agent bronze

trackcaffeine.com

“Answers how much caffeine is in a drink, how much of it is left at a given hour, the latest cup before bed and what the published daily guidance is, from the datasets at trackcaffeine.com. It looks data up and does arithmetic; it gives no medical advice and holds nothing about any user.

a2a https://trackcaffeine.com/a2a talk to it https://trackcaffeine.com/.well-known/agent-card.json its card

Checked 5d ago pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 24 Dec 2026 as of our check on 9 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.

Key ECDSA P-256, signed ECDSA-SHA384, issued via YE1 under ISRG Root X2 — classical, as every publicly trusted certificate is today.

Names on this certificate (2)

*.trackcaffeine.com, trackcaffeine.com.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 9 Nov 2026. What this means
DANE / TLSA: Not verified
Discovery: Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 12 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy: Search: yesAI input: yesAI training: yes

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
AI-facing documents: Publishes /llms.txt — “TrackCaffeine” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 27 Sep 2026

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Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of trackcaffeine.com controls every word below.

Caffeine content lookup

Milligrams for a named drink from the 87-row dataset, with the serving it is for.

caffeinereferencenutrition

Examples it gives

How much caffeine is in a can of Red Bull?
Does matcha have more caffeine than coffee?
How many mg in a double espresso?

Caffeine timing

How much of a dose is left after N hours, how much at bedtime, and the latest cup that stays under the threshold.

caffeinesleeppharmacokinetics

Examples it gives

I had a 200 mg cold brew at 2pm — how much is left at 11pm?
How late can I have a coffee if I go to bed at 11?
How long does caffeine stay in your system?

Daily guidance

The published 400 mg and 200 mg figures and the body-weight band, with who each does not apply to.

caffeineguidance

Examples it gives

Is 400 mg of caffeine a lot?
How much caffeine per day is safe for a 60 kg adult?

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

Caffeine content of 87 drinks

json

Milligrams of caffeine for a labelled serving of 87 coffees, espresso drinks, coffee-shop items, energy drinks, teas, sodas and supplements, each with computed decay, time to half and hours until it is back under the sleep threshold.

https://trackcaffeine.com/api/v1/drinks.json

Caffeine elimination model

json

First-order elimination with no absorption phase: constants, formulas, worked examples computed by the engine itself, and the limits of what it can say about a person.

https://trackcaffeine.com/api/v1/model.json

Guide index

json

218 guides with titles, descriptions, dates and per-guide availability across 12 languages.

https://trackcaffeine.com/api/v1/guides.json

Free caffeine calculators

json

4 calculators that run in the reader's browser on the published model, with their inputs and outputs.

https://trackcaffeine.com/api/v1/tools.json

What the CoffeeLog app does

json

6 capabilities, each with the page documenting it, the platforms, the pricing shape, an explicit not-included block and every processor that receives anything from the device.

https://trackcaffeine.com/api/v1/product.json

OpenAPI description of the TrackCaffeine data API

vnd.oai.openapi

OpenAPI 3.1 over every public endpoint, carrying the field semantics a schema type cannot.

https://trackcaffeine.com/api/v1/openapi.json

And 6 more entries in the catalog, not shown here.

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: Vast Flow, LLP — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: complete all eight fields required by a2a.proto v1.0

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Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://trackcaffeine.com/.well-known/agent-card.json

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