# Particle Health vs Redox

> Redox scores 58.3 (C) 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/particle-health-vs-redox
- Markdown: https://www.anchorterminal.com/compare/particle-health-vs-redox.md (~2,200 tokens)
- Slim: https://www.anchorterminal.com/compare/particle-health-vs-redox.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/particle-health-vs-redox.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

Redox scores 58.3 (C) on agent readiness against Particle Health's 48.6 (D), and leads in 6 of 7 scored categories. Particle Health leads on schema & documentation. Both do patient record retrieval.

- 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
- Redox: grade C, 58.3/100, rank #618 of 1076. Markdown https://www.anchorterminal.com/tools/redox.md · JSON https://www.anchorterminal.com/api/v1/tools/redox.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

### 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:
- Schema & documentation, 69 against 56

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

### Redox (C)

Good for: Health software vendors integrating with many hospital EHRs and networks, and integration teams who want an agent to manage Redox configuration.

Ahead on:
- Reliability, 85 against 58
- Security & auth, 78 against 57
- Payments & pricing, 15 against 5
- Transparency & trust, 59 against 48

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: The MCP server loads 107 tools in one set, including write and delete tools with no confirmation step


## Score by category

| Category | Weight | Particle Health | Redox | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 58 | 85 | Redox +27 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 69 | 56 | Particle Health +13 |
| Agent ergonomics | 13% (16.2 this run) | 53 | 54 | Redox +1 |
| Security & auth | 14% (17.5 this run) | 57 | 78 | Redox +21 |
| Payments & pricing | 10% (12.5 this run) | 5 | 15 | Redox +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 27 | 31 | Redox +4 |
| Transparency & trust | 7% (8.8 this run) | 48 | 59 | Redox +11 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **48.6 · D** | **58.3 · C** | |

## Facts side by side

| Fact | Particle Health | Redox |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Particle Health, Inc. | Redox, Inc. |
| Hosted endpoint | no (local only) | `https://api.redoxengine.com/mcp` |
| Transports | HTTP | HTTP |
| Auth | OAuth | OAuth |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under customer agreements. The public terms of use (effective 15 October 2020) cover the website only | Proprietary service under Redox's Cloud Services Agreement, EULA and SLA (version 2016.1) |
| Tools exposed | none | 107 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Terms last updated | 2020-10-15 | 2015-10-17 |
| Privacy policy last updated | 2026-07-29 | 2023-01-18 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |

## Verdicts

**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.

**Redox.** Redox connects to EHRs and clinical networks behind a FHIR API, with signed-JWT OAuth keys, a 99.95 per cent SLA, a HackerOne bug bounty and a hosted MCP server for managing integrations. The MCP server exposes 107 tools at once with write and delete tools unconfirmed, OpenAPI files sit behind login, and the sandbox plan costs $15,000 a year.

## Before you call either

### 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

### Redox

1. Name the environment in every MCP prompt and try configuration changes in staging first, as Redox advises
2. Stay under 7,500 requests per IP per five minutes, and back off exponentially on 5XX
3. Sign the token request with the private key whose public key is registered on the OAuth API key
4. Ask an organisation owner to enable the MCP server before connecting a client
5. Treat log payloads returned through MCP as PHI and as untrusted text

## Questions

### Which is better for AI agents, Particle Health or Redox?

Redox scores 58.3 (C) on agent readiness against Particle Health's 48.6 (D), and leads in 6 of 7 scored categories. Particle Health leads on schema & documentation.

### Do Particle Health and Redox need an API key?

Both use an OAuth sign-in.

### Can an agent call Particle Health and Redox without installing anything?

No hosted endpoint is listed for Particle Health. Redox has a hosted endpoint at https://api.redoxengine.com/mcp.


## For agents

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

## Other comparisons with Particle Health or Redox

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