generated: '2026-07-11' method: derived source: openapi/fulfil-io-openapi.yml summary: types: - apiKey - oauth2 api_key_in: - header oauth2_flows: - authorizationCode schemes: - name: apiKeyAuth type: apiKey in: header parameter: X-API-KEY description: Personal access token for private integrations, sent in the X-API-KEY header. Fulfil also accepts the token via HTTP Basic authentication. sources: - openapi/fulfil-io-openapi.yml - name: oauth2 type: oauth2 flows: - flow: authorizationCode authorizationUrl: https://{merchant_id}.fulfil.io/oauth/authorize tokenUrl: https://{merchant_id}.fulfil.io/oauth/token scopes: 0 description: OAuth 2.0 authorization code flow for public apps. sources: - openapi/fulfil-io-openapi.yml