# Medblocks vs Metriport Medical API

> Medblocks scores 52.7 (D) to Metriport Medical's 50.1 (D) for patient record retrieval. Prices, MCP, x402, uptime and agent notes side by side.

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- 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

Medblocks scores 52.7 (D) on agent readiness against Metriport Medical API's 50.1 (D), and leads in 3 of 7 scored categories. Metriport Medical API leads on reliability, maintenance & community and transparency & trust. Both do patient record retrieval.

- Medblocks: grade D, 52.7/100, rank #773 of 1076. Markdown https://www.anchorterminal.com/tools/medblocks.md · JSON https://www.anchorterminal.com/api/v1/tools/medblocks.json
- 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
- 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

### Medblocks (D)

Good for: A consumer or care app, or an assistant, that needs a patient's own records from US hospitals and payers with the patient's consent, and wants an MCP route as well as REST.

Ahead on:
- Security & auth, 67 against 41
- Payments & pricing, 25 against 5

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

Watch for: No status page, SLA or published rate limits for the Platform API

### 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:
- Reliability, 45 against 28
- Maintenance & community, 74 against 69
- Transparency & trust, 56 against 51

Also in its favour:
- Open source

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


## Score by category

| Category | Weight | Medblocks | Metriport Medical API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 28 | 45 | Metriport Medical API +17 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 62 | 65 | Metriport Medical API +3 |
| Agent ergonomics | 13% (16.2 this run) | 72 | 70 | Medblocks +2 |
| Security & auth | 14% (17.5 this run) | 67 | 41 | Medblocks +26 |
| Payments & pricing | 10% (12.5 this run) | 25 | 5 | Medblocks +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 69 | 74 | Metriport Medical API +5 |
| Transparency & trust | 7% (8.8 this run) | 51 | 56 | Metriport Medical API +5 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **52.7 · D** | **50.1 · D** | |

## Facts side by side

| Fact | Medblocks | Metriport Medical API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Medblocks Inc. | Metriport Inc. |
| Hosted endpoint | `https://app.medblocks.com/mcp` | no (local only) |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | Proprietary service under Medblocks' terms. The medblocks TypeScript SDK on npm carries a proprietary licence that forbids redistribution and reverse engineering. The agent skills repository has no licence file | 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 |
| Tools exposed | 10 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-14 | 2026-09-28 |
| Terms last updated | 2026-10-05 | 2024-01-01 |
| Privacy policy last updated | 2026-10-05 | 2023-02-21 |
| 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 | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 36 npm/wk | 793 stars, 28k npm/wk |

## Verdicts

**Medblocks.** Patient-authorised record retrieval with a ten-tool remote MCP server, OAuth with per-capability consent, an audit entry for every call and a free plan for 1,000 active patients. No status page, no published rate limits and no idempotency keys were found, and the OpenAPI file behind the reference is not published.

**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.

## Before you call either

### Medblocks

1. Connect with `claude mcp add --transport http medblocks https://app.medblocks.com/mcp` and sign in, or send a workspace API key as a Bearer token from a backend
2. Ask the person before calling `disconnect_health_system` or `delete_person`. Both are permanent
3. Wait for the connection webhook or check connection status before reading records. Pulls run in the background after the patient approves
4. Branch on `error.code`, not the message, and wait the `Retry-After` seconds on a 429
5. Use a Sandbox workspace and the Synthetic Hospital (password `demopass`) for tests. Sandbox keys cannot reach production sources

### 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

## Questions

### Which is better for AI agents, Medblocks or Metriport Medical API?

Medblocks scores 52.7 (D) on agent readiness against Metriport Medical API's 50.1 (D), and leads in 3 of 7 scored categories. Metriport Medical API leads on reliability, maintenance & community and transparency & trust.

### Do Medblocks and Metriport Medical API need an API key?

Medblocks takes an API key or an OAuth sign-in. Metriport Medical API needs an API key.

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

Medblocks has a hosted endpoint at https://app.medblocks.com/mcp. No hosted endpoint is listed for Metriport Medical API.

### Are Medblocks and Metriport Medical API open source?

No open-source release is listed for Medblocks. 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).


## For agents

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

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