TestWell Lab Tests
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About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 10 Oct 2026, 13:45 UTC. Its latest card check succeeded; the card declares 18 skills and a HTTP+JSON interface. LocalMark has not run a task against this agent.
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Inspect the source card ↗. The last successful fetch was 10 Oct 2026, 13:45 UTC.
- Latest card check: passed
10 Oct 2026, 13:45 UTC · Agent Card validated
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- Read-only protocol probe: Protocol response unconfirmed
10 Oct 2026, 13:45 UTC · Protocol response exceeded 16 KiB limit LocalMark sent no message and did not request task creation.
- Unsigned card
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- 30-day card check history
1 of 1 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.
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- Passed · 10 Oct 2026, 13:45 UTC
Agent Card validated
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README Markdown:
[](https://localmark.ai/agents/12251)Card-declared connections
These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.
- No card-declared connections recorded yet.
Declared skills 18
- All-in order quote
Price a set of tests/panels exactly as TestWell's checkout would: per-lab prices for the user's state (New York and New Jersey route to BioReference; Rhode Island is not served), the single $6 lab processing fee, the total, items that can't be ordered and why, and a prefilled cart URL. Use this before quoting any total to a user.
- Calculate free testosterone (Vermeulen)
Calculate free and bioavailable testosterone from total testosterone, SHBG and albumin using the Vermeulen (1999) mass-action equation — the method behind lab-reported 'calculated free testosterone'. Educational; not a diagnosis.
- Cancel a checkout session
Cancel an open (unpaid) checkout session. Paid sessions cannot be canceled here — the patient's complete-details email explains refunds.
- Compare TestWell with another lab-testing service
Honest side-by-side of TestWell and another direct-to-consumer lab service (Quest Direct, Labcorp OnDemand, Function Health, JustLabs, Ulta Lab Tests, …): pricing model, per-order fees, labs, turnaround, where each wins, spot prices on common tests as sticker AND all-in, with verification dates and sources. Call with no argument to list the providers covered.
- Compare all-in prices across providers for a test
For one blood test, the all-in single-test price (sticker + per-order fees) at TestWell and at every tracked direct-to-consumer provider with a verified equivalent — JustLabs, Quest, Labcorp OnDemand, Ulta Lab Tests, Walk-In Lab, HealthLabs and more — each with the date it was verified, plus typical hospital self-pay and Quest Direct reference prices. States the multi-test caveat (fees are paid once per order). Source: the TestWell Blood Test Price Index (CC BY 4.0).
- Convert lab units
Convert a lab value between US conventional and SI units for 30 common analytes (glucose, cholesterol, testosterone, vitamin D, …) using published factors; hemoglobin A1c uses the NGSP↔IFCC master equation and also returns estimated average glucose.
- Create a checkout session
Start a TestWell order for the user: tests/panels, the US state where they will visit the lab (required for pricing and lab routing), and the buyer's name, email and phone. Returns priced line items in cents, the single $6 lab fee, the total, any blocking messages, and pay_online_url — a prefilled cart the user can pay in a browser when the platform has no payment token. Use dry_run to preview without creating a session.
- Explain lab results against reviewed reference ranges
Flag each pasted lab value as low / normal / high against TestWell's physician-reviewed reference catalog (130+ markers; sex- and age-specific bands where they exist), with the reviewed 'what high/low suggests' copy, retest guidance, cited sources and links to the marker's page and, where one exists, its high/low interpretation page. Stateless — values are not stored or logged. Educational, not a diagnosis; the user's own report range takes precedence.
- Find draw sites near a ZIP
Find Quest Diagnostics, Labcorp and BioReference patient service centers near a US ZIP code, with address, distance, phone and hours. Walk-ins are accepted at most sites; the requisition arrives by email after physician authorization.
- Get a guide, condition or answer page as Markdown
Return one of TestWell's educational pages as Markdown: guides (/guides/<slug>), condition workups (/conditions/<slug>), biomarker pages (/biomarkers/<slug>), state pages (/lab-locations/<slug>) or comparisons (/compare/<slug>). Call with no path to list the available guides and conditions.
- Get a test or panel
Full public detail for one TestWell test or panel by slug or id: description, biomarkers, CPT, per-lab prices, labs, fasting/prep, turnaround, included tests (panels), FAQ, related conditions, order URL and a Markdown page URL.
- List panels
List TestWell's bundled panels (multi-test packages priced below the sum of their tests), optionally filtered by category or maximum price. Sorted by price.
- Pay and place the order
Charge the payment credential the platform obtained for a session that is ready_for_payment and create the order. Input follows the ChatGPT payment-sheet contract: checkout_session_id, buyer, payment_data { token, provider: 'stripe', billing_address }. The token is a Stripe shared payment token (spt_…); platforms without one should send the user to pay_online_url from create_checkout. After payment the patient gets an email link to add date of birth, sex, phone and consent — the lab requisition is issued when that is done.
- Read a checkout session
Current state of a checkout session (status, line items, totals, messages, order once paid). Read-only.
- Recommend tests for goals or symptoms
Suggest TestWell panels and tests for stated health goals (e.g. 'annual checkup', 'heart health', 'TRT monitoring') and/or symptoms (e.g. 'fatigue', 'hair loss'). Prefers a curated pre-built panel when one fits; otherwise assembles individual tests within a budget. Educational matching, not a diagnosis.
- Reference range for a biomarker
Physician-reviewed reference range for a blood test marker (130+ markers), filtered by sex and age when they matter, with what high and low values suggest, retest cadence, how to get tested, cited sources and the review date. Educational; the user's own report range takes precedence.
- Search the TestWell catalog
Search TestWell's public catalog of cash-pay lab tests and panels by keyword, biomarker, CPT code, or category. Returns name, slug, per-lab prices, sample, fasting, turnaround and order URL. Prices are stickers; every order adds one $6 lab processing fee (see quote_order for all-in totals).
- Update a checkout session
Change items, state or buyer details on an open checkout session and get it re-priced. Returns the same session object as create_checkout.