# Metriport Medical API vs Particle Health

> Metriport Medical scores 50.1 (D) to Particle Health's 48.6 (D) for patient record retrieval. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/metriport-vs-particle-health
- Markdown: https://www.anchorterminal.com/compare/metriport-vs-particle-health.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/metriport-vs-particle-health.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/metriport-vs-particle-health.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-14

Metriport Medical API scores 50.1 (D) on agent readiness against Particle Health's 48.6 (D), and leads in 3 of 7 scored categories. Particle Health leads on reliability and security & auth. Both do patient record retrieval.

- Metriport Medical API: grade D, 50.1/100, rank #833 of 1076. Markdown https://www.anchorterminal.com/tools/metriport.md · JSON https://www.anchorterminal.com/api/v1/tools/metriport.json
- Particle Health: grade D, 48.6/100, rank #867 of 1076. Markdown https://www.anchorterminal.com/tools/particle-health.md · JSON https://www.anchorterminal.com/api/v1/tools/particle-health.json
- Best health record and wellness data APIs for AI agents: https://www.anchorterminal.com/best/health-data/index.md
- All 63 health comparisons: https://www.anchorterminal.com/compare/health-data/index.md

## Which one, for what

### Metriport Medical API (D)

Good for: US care providers and digital health companies that need a patient's network records as FHIR with webhooks.

Ahead on:
- Agent ergonomics, 70 against 53
- Maintenance & community, 74 against 27
- Transparency & trust, 56 against 48

Also in its favour:
- Open source

Watch for: Every API key has full access, including destructive operations, with no scopes

### Particle Health (D)

Good 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 45
- Security & auth, 57 against 41

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


## Score by category

| Category | Weight | Metriport Medical API | Particle Health | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 45 | 58 | Particle Health +13 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 65 | 69 | Particle Health +4 |
| Agent ergonomics | 13% (16.2 this run) | 70 | 53 | Metriport Medical API +17 |
| Security & auth | 14% (17.5 this run) | 41 | 57 | Particle Health +16 |
| Payments & pricing | 10% (12.5 this run) | 5 | 5 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 74 | 27 | Metriport Medical API +47 |
| Transparency & trust | 7% (8.8 this run) | 56 | 48 | Metriport Medical API +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **50.1 · D** | **48.6 · D** | |

## Facts side by side

| Fact | Metriport Medical API | Particle Health |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Metriport Inc. | Particle Health, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary hosted service under Metriport's terms of use. The source in metriport/metriport is AGPLv3, with an enterprise directory under its own licence, and the @metriport/api-sdk package on npm is MIT | Proprietary service under customer agreements. The public terms of use (effective 15 October 2020) cover the website only |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-28 | none |
| Terms last updated | 2024-01-01 | 2020-10-15 |
| Privacy policy last updated | 2023-02-21 | 2026-07-29 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 793 stars, 28k npm/wk | none |

## Verdicts

**Metriport Medical API.** One network query pulls a patient's records from HIEs, pharmacies and labs and returns deduplicated FHIR, with per-operation rate limits, RFC 7807 errors and AGPLv3 source. Each API key has full access with no scopes, there are no public prices, and the sandbox opens only after Metriport approves the account.

**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

### Metriport Medical API

1. Check the `errors` array after Start Network Query. It returns 2XX even when some sources fail
2. Wait for `network-query.*` webhooks or poll Get Network Query Status before reading consolidated data, which is cached from the last query
3. Send the resource's `eTag` in `If-Match` on updates to avoid overwriting newer data
4. Keep patient creates under 15 a minute and network queries under 20 a minute per source
5. In sandbox, create patients whose first name matches a pre-defined persona to get example records

### 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, Metriport Medical API or Particle Health?

Metriport Medical API scores 50.1 (D) on agent readiness against Particle Health's 48.6 (D), and leads in 3 of 7 scored categories. Particle Health leads on reliability and security & auth.

### Do Metriport Medical API and Particle Health need an API key?

Metriport Medical API needs an API key. Particle Health uses an OAuth sign-in.

### Can an agent call Metriport Medical API and Particle Health without installing anything?

No hosted endpoint is listed for Metriport Medical API. No hosted endpoint is listed for Particle Health.

### Are Metriport Medical API and Particle Health open source?

Metriport Medical API is open source (Proprietary hosted service under Metriport's terms of use. The source in metriport/metriport is AGPLv3, with an enterprise directory under its own licence, and the @metriport/api-sdk package on npm is MIT). No open-source release is listed for Particle Health.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/metriport-vs-particle-health.json, and with the fewest tokens: https://www.anchorterminal.com/compare/metriport-vs-particle-health.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "metriport", "b": "particle-health"}`. From a terminal: `anchor compare metriport particle-health`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/metriport.json and https://www.anchorterminal.com/api/v1/tools/particle-health.json

## Other comparisons with Metriport Medical API or Particle Health

- [Aidbox vs Metriport Medical API](https://www.anchorterminal.com/compare/aidbox-vs-metriport.md)
- [Aidbox vs Particle Health](https://www.anchorterminal.com/compare/aidbox-vs-particle-health.md)
- [Medplum vs Metriport Medical API](https://www.anchorterminal.com/compare/medplum-vs-metriport.md)
- [Medplum vs Particle Health](https://www.anchorterminal.com/compare/medplum-vs-particle-health.md)
- [Metriport Medical API vs ROOK](https://www.anchorterminal.com/compare/metriport-vs-rook.md)
- [Metriport Medical API vs Terra API](https://www.anchorterminal.com/compare/metriport-vs-terra.md)
- [Particle Health vs ROOK](https://www.anchorterminal.com/compare/particle-health-vs-rook.md)
- [Particle Health vs Terra API](https://www.anchorterminal.com/compare/particle-health-vs-terra.md)
- [1upHealth vs Metriport Medical API](https://www.anchorterminal.com/compare/1uphealth-vs-metriport.md)
- [1upHealth vs Particle Health](https://www.anchorterminal.com/compare/1uphealth-vs-particle-health.md)
- [Health Gorilla vs Metriport Medical API](https://www.anchorterminal.com/compare/health-gorilla-vs-metriport.md)
- [Health Gorilla vs Particle Health](https://www.anchorterminal.com/compare/health-gorilla-vs-particle-health.md)
- [Medblocks vs Metriport Medical API](https://www.anchorterminal.com/compare/medblocks-vs-metriport.md)
- [Medblocks vs Particle Health](https://www.anchorterminal.com/compare/medblocks-vs-particle-health.md)
- [Metriport Medical API vs Redox](https://www.anchorterminal.com/compare/metriport-vs-redox.md)
- [Metriport Medical API vs Zus Health](https://www.anchorterminal.com/compare/metriport-vs-zus-health.md)
- [Particle Health vs Redox](https://www.anchorterminal.com/compare/particle-health-vs-redox.md)
- [Particle Health vs Zus Health](https://www.anchorterminal.com/compare/particle-health-vs-zus-health.md)
- [Metriport Medical API vs Validic Inform](https://www.anchorterminal.com/compare/metriport-vs-validic.md)