Head to head · Patient record retrieval · October 2026 research run

1upHealth vs Particle Health

Particle Health scores 48.6 (D) on agent readiness against 1upHealth's 46.8 (D), and leads in 3 of 7 scored categories. 1upHealth leads on security & auth, payments & pricing, maintenance & community and transparency & trust. Both do patient record retrieval.

Best health record and wellness data APIs for AI agents · All 63 health comparisons

Which one, for what

1upHealth D

Best for Consumer and care apps that read a member's health plan claims and clinical data under the CMS rules, and payers meeting those rules.

Ahead on

  • Security & auth, 63 against 57
  • Payments & pricing, 20 against 5
  • Maintenance & community, 37 against 27
  • Transparency & trust, 72 against 48

Watch for

No rate limits, 429 handling or error formats documented

Particle Health D

Best for US providers, payers and digital health companies that need a patient's network records as FHIR or flat data, and care-event alerts.

Ahead on

  • Reliability, 58 against 52
  • Schema & documentation, 69 against 50
  • Agent ergonomics, 53 against 32

Watch for

Credentials come from a Particle representative, and the 'play for free' sign-up domain did not resolve

Score by category

CategoryWeight this run1upHealthParticle HealthEdge
Reliability16%205258Particle Health +6
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25069Particle Health +19
Agent ergonomics13%16.23253Particle Health +21
Security & auth14%17.563571upHealth +6
Payments & pricing10%12.52051upHealth +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.837271upHealth +10
Transparency & trust7%8.872481upHealth +24
Negative events≤1500
TotalD 46.8/100D 48.6/100

Facts side by side

Fact1upHealthParticle Health
KindHTTP APIHTTP API
Vendor1upHealth, Inc.Particle Health, Inc.
Hosted endpointno (local only)no (local only)
TransportsHTTPHTTP
AuthOAuthOAuth
PricingPaidPaid
x402nono
LicenceProprietary service under 1upHealth's Terms of Service (effective 1 August 2024)Proprietary service under customer agreements. The public terms of use (effective 15 October 2020) cover the website only
Read-only variant documentednono
llms.txtyesyes
Terms last updatedno date given2020-10-15
Privacy policy last updated2026-06-252026-07-29
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textyes

Verdicts

1upHealth

Self-serve Dev Portal sandbox clients and a demo health plan let an app test the CMS Patient Access, Provider Access and Payer-to-Payer FHIR APIs, backed by HITRUST and SOC 2 Type 2. No rate limits, error formats or dated releases are documented, and the Patient Access OAuth step needs the member in a browser.

Particle Health

Particle queries Carequality, CommonWell, eHealth Exchange and state HIEs for a patient and returns FHIR R4B, flat data or C-CDA, with project-scoped 60-minute tokens and OpenAPI fragments per endpoint. Credentials come through a representative, the free sign-up link was dead on 14 October 2026, and rate limits, SLA and changelog are unpublished.

Before you call either

1upHealth

  1. Hand the Patient Access sign-in to the member, who must authorise in the health plan's auth app
  2. Exchange the authorisation code within five minutes, and refresh before the 15-minute token expires
  3. Email payer-patient-access@1up.health with the client ID to get the app synced to the demo environment
  4. Expect only claims and coverage resources from some payers, and read /r4/metadata first

Particle Health

  1. Pass projects/<project_id> as the scope when requesting a token, and request a new one every 60 minutes
  2. Poll Get Query Status, or wait for the query-complete webhook, before reading FHIR or flat data
  3. Back off on 429, since limits change with system load
  4. Pass continuation tokens back verbatim when paging
  5. Use the published synthetic patients in sandbox, and stay under 500 queries a day

Questions

Which is better for AI agents, 1upHealth or Particle Health?

Particle Health scores 48.6 (D) on agent readiness against 1upHealth's 46.8 (D), and leads in 3 of 7 scored categories. 1upHealth leads on security & auth, payments & pricing, maintenance & community and transparency & trust.

Do 1upHealth and Particle Health need an API key?

Both use an OAuth sign-in.

Can an agent call 1upHealth and Particle Health without installing anything?

No hosted endpoint is listed for 1upHealth. No hosted endpoint is listed for Particle Health.

Other comparisons with 1upHealth or Particle Health

Machine-readable

For companies

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