# b.well

**Canonical:** https://apis.io/providers/b-well/  
**Website:** https://www.icanbwell.com/  
**APIs profiled:** 5

b.well Connected Health is a Baltimore-based digital health platform that unifies a person's fragmented medical, pharmacy, claims, wearable and lab data into a single FHIR-native longitudinal health record, then exposes that record to partner applications through a developer platform. The company operates a consumer-mediated health data network spanning millions of providers, health plans, HIEs/HINs, TEFCA QHINs and CMS-aligned networks, and licenses it to health systems, payers, employers and retail health brands who embed it in their own apps. Its developer surface is built around four Health SDKs (Web/TypeScript, Android/Kotlin, iOS/Swift and an AI SDK that speaks Model Context Protocol), a federated GraphQL gateway, REST endpoints for user data operations and webhooks, and a FHIR R4 server (the open-source Helix FHIR Server) supporting $everything and International Patient Summary retrieval. Authentication is OAuth 2.0 throughout — token exchange with OIDC for end-user context, client credentials for system-to-system access, and HMAC-SHA512 request signing on the user data operations API.

## Kin Score — 58.3 / 100 (strong)

Scored 2026-08-12 under rubric 0.11.0. Trend: flat (+0.0 from 58.3).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 63.1 |
| Governance | 20.8 |
| Operational Transparency | 55.3 |
| Developer Ergonomics | 75.5 |
| Commercial Clarity | 34.2 |

Regulatory layer — **Health**: 67.5 (matched via tags).

## Agent readiness — 57.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| MCP Server | yes |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | verified |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (5)

- **b.well Application APIs** — Federated GraphQL gateway plus REST endpoints that let end-user applications read and write a person's health data, manage data-source connections, handle consent, and coordinat...
- **b.well FHIR Server** — System-level FHIR R4 API over b.well's normalized clinical data store, built on the open-source Helix FHIR Server. Supports standard FHIR REST search, $everything bulk patient r...
- **b.well Health SDK for AI (MCP Server)** — A b.well-hosted Model Context Protocol server that exposes a catalog of healthcare agents/tools — insurance coverage validation, FHIR record and lab retrieval, patient summaries...
- **b.well Users API** — The Users API from b.well — 2 operation(s) for users.
- **b.well Webhook API** — The Webhook API from b.well — 1 operation(s) for webhook.

## MCP servers (1)

- **b-well-mcp.yml**

## Agentic access (1)

- **B Well Agentic Access** — 3 operations · 3 acting

## Security (3)

- **B Well Authentication** — oauth2/apiKey · 7 schemes
- **B Well Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **B Well Vulnerability Disclosure** — security.txt · contact published

## Tags

Company, Health, Healthcare, Digital Health, FHIR, Health Data, Interoperability, Patient Access, Health Records, Model Context Protocol

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/b-well/). Scores are computed from the provider's own public artifacts under a published rubric.