# TestWell Lab Tests

> Cash-pay lab tests: catalog search, all-in quotes by state, draw sites by ZIP, reviewed ranges.

- name: com.test-well/testwell
- version: 1.2.0
- connection class: R0 (autonomous)
- trust: 80/100 flags: no-repository
- quality: 96/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.test-well%2Ftestwell
- tools: https://api.protogrid.dev/v1/servers/com.test-well%2Ftestwell/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "testwell": {
      "type": "http",
      "url": "https://www.test-well.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 85
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% ~updated-44d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 96/100 (strong)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 18 of 18 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 4,396 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 2 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 18, about 4,396 tokens to load them all
- tool set hash: f306b2909319c3b359684faf51eff742
- tools last changed: 2026-10-11T00:36:51.076Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.test-well/testwell.svg)](https://protogrid.dev/servers/com.test-well/testwell)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-11 `find_draw_sites` changed (description)
  - before: 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.
  - after: 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. Sites in the 48 tracked metros include pageUrl — the site's own page with a per-day hours table, directions and the prices of popular tests at that lab — cite it when giving a location.
- 2026-10-11 `get_test` changed (description)
  - before: 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.
  - after: 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. Tests also carry labPages — per-lab pages (/tests/<slug>/quest, /tests/<slug>/labcorp) with the lab's test code, requisition name, the lab's own dated price vs TestWell's, and walk-in steps — cite them when the user asks about a specific lab.

Full history: https://api.protogrid.dev/v1/servers/com.test-well%2Ftestwell/changes

## Remotes

- https://www.test-well.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (18)

- `calculate_free_testosterone`: 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_checkout`: Cancel an open (unpaid) checkout session. Paid sessions cannot be canceled here — the patient's complete-details email explains refunds.
- `compare_prices`: 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).
- `compare_provider`: 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.
- `complete_checkout`: 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.
- `convert_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_checkout`: 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.
- `find_draw_sites`: 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. Sites in the 48 tracked metros include pageUrl — the site's own page with a per-day hours table, directions and the prices of popular tests at that lab — cite it when giving a location.
- `get_checkout`: Current state of a checkout session (status, line items, totals, messages, order once paid). Read-only.
- `get_guide`: 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_test`: 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. Tests also carry labPages — per-lab pages (/tests/<slug>/quest, /tests/<slug>/labcorp) with the lab's test code, requisition name, the lab's own dated price vs TestWell's, and walk-in steps — cite them when the user asks about a specific lab.
- `interpret_results`: 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.
- `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.
- `lookup_reference_range`: 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.
- `quote_order`: 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.
- `recommend_tests`: 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.
- `search_tests`: 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_checkout`: Change items, state or buyer details on an open checkout session and get it re-priced. Returns the same session object as create_checkout.