Lynx
Lynx (Lynx FinHealth) is a healthcare fintech platform that provides embedded banking, payments, benefits, and e-commerce infrastructure for health plans, providers, and digital health companies. Its API-first and white-label platform powers consumer-directed health accounts (HSA/FSA), ICHRA administration, directed and filtered spend accounts, instant physical and virtual card issuance with merchant and SKU-level controls, supplemental benefits, pharmacy access, rewards and incentive programs, and a qualified medical expense (QME) e-commerce marketplace with end-to-end fulfillment. Lynx is SOC 2 and HITRUST certified and exposes a developer hub, dated changelog, hosted sandbox, and Atlassian status page. Surfaced as a portfolio company of Obvious Ventures and enriched from the public Lynx surface (the full API reference, authentication model, and test data are gated behind developer login).
Lynx publishes 21 API contracts indexed on the APIs.io network, including Investments API, Tags API, Accounts API, and 18 more. Tagged areas include Company, Healthcare, Fintech, Payments, and Benefits.
The Lynx catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
Lynx’s developer surface includes authentication, documentation, API reference, getting-started guide, changelog, sandbox, signup flow, and 24 more developer resources.
Kin Score
Kin Score
How this is scored →scored 2026-10-17 · rubric v0.24.0
APIs 21
Individual APIs this provider publishes, each with its own machine-readable definition.
Lynx API
Lynx FinHealth API for embedded health accounts, enrollment, contributions, payments and distributions, transactions, and card issuance/management. Reference is gated behind dev...
Lynx Investments API
The Investments API from Lynx — 20 operation(s) for investments.
Lynx Tags API
The Tags API from Lynx — 2 operation(s) for tags.
Lynx Accounts API
The Accounts API from Lynx — 9 operation(s) for accounts.
Lynx Cards API
The Cards API from Lynx — 14 operation(s) for cards.
Lynx Claims API
The Claims API from Lynx — 3 operation(s) for claims.
Lynx Client Org Application Token Controller API
The client-org-application-token-controller API from Lynx — 1 operation(s) for client-org-application-token-controller.
Lynx Clients API
The Clients API from Lynx — 5 operation(s) for clients.
Lynx Commerce API
The Commerce API from Lynx — 23 operation(s) for commerce.
Lynx Copay API
The Copay API from Lynx — 2 operation(s) for copay.
Lynx Enrollments API
The Enrollments API from Lynx — 3 operation(s) for enrollments.
Lynx Expense API
The Expense API from Lynx — 1 operation(s) for expense.
Lynx Externalaccounts API
The Externalaccounts API from Lynx — 6 operation(s) for externalaccounts.
Lynx Externalnotifications API
The Externalnotifications API from Lynx — 7 operation(s) for externalnotifications.
Lynx Member Expense Controller API
The member-expense-controller API from Lynx — 4 operation(s) for member-expense-controller.
Lynx Members API
The Members API from Lynx — 8 operation(s) for members.
Lynx Payments API
The Payments API from Lynx — 11 operation(s) for payments.
Lynx Relatedpersons API
The Relatedpersons API from Lynx — 7 operation(s) for relatedpersons.
Lynx Substantiation API
The Substantiation API from Lynx — 5 operation(s) for substantiation.
Lynx Transactions API
The Transactions API from Lynx — 13 operation(s) for transactions.
Lynx Uploads API
The Uploads API from Lynx — 2 operation(s) for uploads.
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Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Lynx Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Lynx API Rules
SPECTRALJSON Schema 60
Standalone JSON Schema definitions for this provider's data models.
AdHocNotificationRequest
JSON SCHEMABaseMemberResponse
JSON SCHEMACalculateSalesTaxResponse
JSON SCHEMACardStatusChangeRequest
JSON SCHEMAClientOrgApplicationTokenRequestDoc
JSON SCHEMAClientOrgApplicationTokenResponse
JSON SCHEMAClientOrgExclusionListRequest
JSON SCHEMAClientOrgNotificationConfigurationData
JSON SCHEMAClientOrgNotificationConfigurationResponse
JSON SCHEMAClientOrgRequest
JSON SCHEMAClientOrgSubscribedEventsRequest
JSON SCHEMAClientOrgSubstantiationModelDto
JSON SCHEMAClientOrgSubstantiationModelRequest
JSON SCHEMACommerceCatalogFacetsResponse
JSON SCHEMACommerceCommodityListDocModelResponse
JSON SCHEMACopayCreateResponse
JSON SCHEMACopayGroupGetDetail
JSON SCHEMADocClientOrgCopayGroupCreateRequest
JSON SCHEMADocClientOrgCopayGroupEditRequest
JSON SCHEMADocCopayGroupGetRequest
JSON SCHEMADocCreateClientOrgExternalBankAccountRequest
JSON SCHEMADocLinkAccountRequest
JSON SCHEMADocMemberBankAccountRequest
JSON SCHEMADocMemberBankAccountRequestVerified
JSON SCHEMADocPostDependentCardRequest
JSON SCHEMADocUpdateBankAccountRequest
JSON SCHEMAGetAccountPerformanceResponse
JSON SCHEMAGetAccountPositionsResponse
JSON SCHEMAGetClaimDetailResponse
JSON SCHEMAGetClaimsResponse
JSON SCHEMAGetClientOrgBankAccountBalanceResponse
JSON SCHEMAGetClientOrgExclusionList
JSON SCHEMAGetCommodityDetailDocModelResponse
JSON SCHEMAGetMemberAccountBalanceResponse
JSON SCHEMAGetMemberAccountTransferResponse
JSON SCHEMAGetMemberCardsResponse
JSON SCHEMAGetMemberEnrollmentsByClientResponse
JSON SCHEMAGetMemberExternalAccountsResponse
JSON SCHEMAMemberAccountStatusRequest
JSON SCHEMAMemberCardRequest
JSON SCHEMAMemberRequest
JSON SCHEMAMemberViewCommerceClassificationDto
JSON SCHEMAPatchClientOrgSubstantiationModelResponse
JSON SCHEMAPatchMemberAccountRequestDoc
JSON SCHEMAPatchMemberEnrollmentRequestDoc
JSON SCHEMAPatchMemberEnrollmentResponseDoc
JSON SCHEMAPatchMemberNotificationStatusRequest
JSON SCHEMAPersistClaimsResponse
JSON SCHEMAPostEcommerceRefundRequest
JSON SCHEMAPostMemberAccountTransferRequest
JSON SCHEMAPostMemberClaimRequest
JSON SCHEMAPostMemberEcommerceOrderRequestDoc
JSON SCHEMAPostReplaceEcommerceOrderRequest
JSON SCHEMAPutCommerceSalesTaxRequest
JSON SCHEMAPutMemberClaimRequest
JSON SCHEMAReissueCardRequestDoc
JSON SCHEMAReplaceCardRequestDoc
JSON SCHEMAValidateCouponRequest
JSON SCHEMAScroll for all 60
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
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Access & Security 3
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
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