ToolMint ClinicalTrials.gov JSON

Clinical trial search and lookup from ClinicalTrials.gov as flat agent JSON: status, phase, sponsor, sites, and eligibility split into inclusion/exclusion lists. Provenance + attribution on every paid response. No personal contact data.

Routes and prices

Route	Price	What it does	Parameters (* required)
`GET /trials`	$0.01	Search studies by condition / intervention / location / status / phase	`condition`, `intervention`, `term`, `location`, `sponsor`, `status`, `phase`, `lat`, `lon`, `radiusMi`, `pageSize`, `pageToken`
`GET /trials/{nctId}`	$0.01	One study by NCT number	`nctId`*

Free routes: /, /health, /openapi.json, /.well-known/x402.

Try it

Not deployed yet. The URL below is the planned address. After launch, an unpaid call returns 402 with the terms in the price table.

curl -i "https://toolmint-clinicaltrials.toolmint.workers.dev/trials?condition=breast%20cancer&status=RECRUITING&phase=2,3&location=Houston,%20TX"

Inputs

Name	Rule
`condition, intervention, term, location, sponsor, lat+lon`	At least one is required
`status, phase`	Comma lists; phase also accepts 1,2,3,4
`lat, lon, radiusMi`	lat -90..90, lon -180..180, radius 1-500 miles (default 50)
`pageSize, pageToken`	1-50 (default 10); pageToken = nextPageToken from the previous page

What you get

Per study: status, phase, study type, sponsor, collaborators, enrollment, key dates, sites (facility, city, state, country), keywords, interventions, primary outcomes, uiUrl
Eligibility split into inclusion/exclusion lists (40 items × 500 chars max, criteriaTruncated); without headings, raw criteriaText (≤ 2,000 chars) and criteriaParsed: false
Caps: summary excerpt 600 chars, 25 sites (locationsTruncated), 20 keywords, 20 interventions, 5 primary outcomes
provenance (URL, API version, dataTimestamp, fetchedAt, sha256), terms
Personal contact data (names, phones, emails of contacts and officials) is never returned.

Sources and terms

ClinicalTrials.gov API v2 (US National Library of Medicine), public, no key. One call per paid request plus one /version call per hour per isolate; results cached 10 minutes.

Limits (read before relying on it)

Not medical advice and not an eligibility decision; every response says so.
Records are submitted by sponsors and may be out of date. No NLM/NIH endorsement.

Example

GET /trials?condition=asthma&status=RECRUITING&pageSize=5

Errors are not charged

Payment settles only on a successful answer. These responses are never settled:

Status	Meaning (from the OpenAPI)	Charged?
`400`	Bad parameters (not charged)	No
`404`	NCT number not on ClinicalTrials.gov (not charged)	No
`502`	Upstream ClinicalTrials.gov error (not charged)	No