b.well
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.
b.well publishes 2 APIs on the APIs.io network: Users API and Webhook API. Tagged areas include Company, Health, Healthcare, Digital Health, and FHIR.
The b.well catalog on APIs.io includes 1 event-driven AsyncAPI specification.
b.well’s developer surface includes documentation, API reference, getting-started guide, authentication, support, engineering blog, changelog, and 32 more developer resources.
Kin Score
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
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
Model Context Protocol servers that expose these APIs to AI agents.
b-well-mcp.yml
MCP SERVEREvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
B Well Webhooks
ASYNCAPISecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll for all 7
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 6
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type