About half of US adults have high blood pressure. Many do not know it because high blood pressure has no symptoms.
Patient taps
That is new to me
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Result for
arthritis
live
One real keyless call
GET /v1/public/health-fact?q=arthritis
NIAMS
Arthritis symptoms and when to see a doctor
federal source · public domain
Joint pain is the most common arthritis symptom. The pain can be worse with use.
General health information from federal public-domain sources — not medical advice, diagnosis, or treatment.
That was one real, public federal answer — and it's free. Receptivity scoring and the audience-safety verdict on every cue come with a free key.
With a free key
The facts are public and free — that's the safety model. The free key unlocks the live cue loop — every cue scored for receptivity and checked safe for its audience. Clinical arc sequencing switches on with a paid stream.
free key
Receptivity scoring
Every cue returns a receptivity score — when this patient is most likely to act.
free key
Audience-safety verdict
Every message checked safe for who's receiving it.
free key
The live cue loop
Create a patient stream, send a response token, get the next federal message — in your app.
See it sequence
One fact is the demo. The arc is the product.
The call above returns one fact. On a paid stream, Signal sequences the whole federal library into a per-episode arc — each message placed by day and phase, checked safe for the patient, and timed to when they are most likely to act. Here is the opening phase of a real clinical arc.
Pick a clinical arc →
Diabetes · Pharma Init
Weight · GLP-1 Init
Heart · Pharma Init
Hypertension · Lifestyle
Quit Smoking
Relapse Prevention
Hypertension · Lifestyle
Dash basics
A healthy blood pressure reading is below 120 over 80. The top number is systolic. The bottom number is diastolic.
Patient taps
That is new to me
DASH ("Dietary Approaches to Stop Hypertension") uses fruit, vegetables, whole-grains and low fat dairy to lower blood pressure.
Patient taps
I will try that
The DASH eating plan focuses on fruits, vegetables, whole grains and lean protein. It is one of the most effective ways to lower BP.
Patient taps
I will check it out
Limiting the amount of salt you eat can be an important part of eating healthy.
Patient taps
I will try that
Stage 1 high blood pressure starts at 130 over 80. Stage 2 starts at 140 over 90. The diagnosis comes from repeated readings.
Patient taps
That is new to me
This is a fixed illustrative slice. The live engine picks each next message from the full federal library — sequenced to the arc, timed to receptivity, and checked safe for the patient.
How it scales
From one fact to the full engine
1
Ask
GET /v1/public/health-fact?q=…
One GET call, no key. Returns a real, federally-sourced fact, list, or tip — exactly what you are using right now.
→
2
Get a free key
Display modeA sandbox key in about five minutes — no PHI, no BAA. Render real federal messages in your own app.
→
3
Sequence
POST /v1/signal/streams/:id/cue
Send a patient's context. Get the next message — receptivity-scored, audience-safety-checked. Paid streams draw from the full federal library, sequenced to a clinical arc.
Quickstart
Five-minute integration
$ curl "https://api.uphealth.us/v1/public/health-fact?q=cholesterol" { "fact": { "kind": "fact", "body": "Having high blood cholesterol puts you at risk for heart disease, the leading cause of death in the U.S.", "agency": "NHLBI", "source_url": "https://www.nhlbi.nih.gov/health/blood-cholesterol", "uphealth_url": "https://uphealth.me/health/cholesterol-basics" }, "topic": "Cholesterol Basics", "disclaimer": "General health information from federal public-domain sources — not medical advice…", "attribution": "Source: NHLBI via Uphealth", "upgrade": { "signup_url": "https://uphealth.us/signup" } }
Call it from the OpenAI and Claude agent SDKs, the MCP server, or plain HTTP.
Or paste
https://mcp.uphealth.us/mcp
into Claude or ChatGPT as a custom connector —
MCP quickstart →.
Evaluating for your org? Your assistant can read the samples, check the sourcing, and write the memo — evaluate with your assistant →.
Why a key, not a pipe
“We’ll just use Twilio.”
Twilio sends. Signal decides what to send, whether it is safe for this person, and what comes next.
“The content is free.”
It is — we source from the same CDC and NIH pages. You pay for the sequencing, the audience-safety verdict, and not maintaining freshness and linting yourself.
Developer sign-up
One key. The whole engine.
Building something for real? We pair with a few founding partners →