Highnote · Authentication Profile

Highnote Authentication

Authentication

Highnote secures its APIs with http across 1 declared security scheme, as derived from its OpenAPI definitions.

Card IssuingCard AcquiringEmbedded FinanceBanking as a ServiceFintechPaymentsGraphQLLedgerCreditMoney MovementACHKYCUnited States
Methods: http Schemes: 1 OAuth flows: API key in: header

Security Schemes

basicAuth http
scheme: basic

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-23'
method: searched
source: openapi/highnote-graphql-api-openapi.yml
docs: https://docs.highnote.com/docs/developers/api/using-the-api
summary:
  types:
  - http
  api_key_in: [header]
  oauth2_flows: []
schemes:
- name: basicAuth
  type: http
  scheme: basic
  description: >-
    HTTP Basic auth. Generate an API key in the Highnote Dashboard, base64-encode the ASCII key,
    and send it as the HTTP Basic username with an empty password — equivalent to
    `Authorization: Basic <base64(apiKey)>`. Keys are environment-scoped (Test vs Live) and
    rotatable in the Dashboard. There is no OAuth/OIDC flow.
  key_management:
    rotation_docs: https://docs.highnote.com/docs/developers/api/rotating-keys
    environments: [test, live]
  sources:
  - openapi/highnote-graphql-api-openapi.yml
client_side_auth:
  detail: Browser/embedded SDK components authenticate with short-lived client tokens minted server-side.
  docs: https://docs.highnote.com/docs/developers/sdks/client-tokens

Work with this as data

Every security artifact here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for security posture

4 MCP tools reach this
  • find_securityBrowse and filter every security artifact in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This security artifact 
curl "https://apis.io/api/v1/security/highnote-authentication"
All security posture 
curl "https://apis.io/api/v1/security?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.