> ## Documentation Index > Fetch the complete documentation index at: https://docs.augustus.com/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Treat the published Augustus OpenAPI specification (https://app.stainless.com/api/spec/documented/augustus/openapi.documented.yml) and the current API-reference pages as the source of truth for endpoints, request/response schemas, enum values, webhook event names, and required headers. > Prefer the 2026-05-01 Banking API and @augustusbank/typescript-sdk for all new integrations. The 2023-01-01 API is a separate, older surface covering two products — Open Banking (instant bank transfer) checkout and refunds, and Manual Bank Transfer (MBT); use it only when one of those products is specifically required. > Cite or link the relevant docs.augustus.com page when answering integration questions. > Do not infer support for currencies, networks, scopes, account types, or operations that are not present in the current documentation. > Use the sandbox base URL (https://api.sandbox.augustus.com) and placeholder credentials in examples. Never include or request a real API key. > The Augustus docs MCP server (https://docs.augustus.com/mcp) provides documentation search and retrieval only; it does not execute authenticated Augustus API actions. # checkout_session_updated > A checkout session has been updated ## OpenAPI ````yaml https://api.getivy.de/openapi/webhooks/json post /api/service/webhook-event/checkout_session_updated openapi: 3.0.0 info: title: Ivy Webhook Events description: Ivy Webhook Events schema version: '1.0' contact: name: Ivy url: https://www.getivy.io email: help@getivy.io servers: [] security: [] tags: [] paths: /api/service/webhook-event/checkout_session_updated: post: tags: - WebhookEventExamples - Checkout Session summary: checkout_session_updated description: A checkout session has been updated operationId: WebhookEventExamplesController_checkoutSessionUpdated parameters: [] requestBody: required: true description: Data of the webhook event content: application/json: schema: $ref: '#/components/schemas/CheckoutSessionUpdatedWebhookEventDto' responses: '200': description: OK servers: - url: https://{yourDomain} variables: yourDomain: description: The URL where you want to receive webhook events default: www.your-domain.com components: schemas: CheckoutSessionUpdatedWebhookEventDto: type: object properties: id: description: The unique id for the webhook. type: string type: type: string enum: - checkout_session_updated date: description: The date of the webhook. type: string payload: description: The updated checkout session data. type: object properties: id: type: string market: type: string enum: - AF - AL - DZ - AS - AD - AO - AI - AQ - AG - AR - AM - AW - AU - AT - AZ - BS - BH - BD - BB - BY - BE - BZ - BJ - BM - BT - BO - BA - BW - BV - BR - IO - BN - BG - BF - BI - KH - CM - CA - CV - KY - CF - TD - CL - CN - CX - CC - CO - KM - CG - CD - CK - CR - CI - HR - CU - CY - CZ - DK - DJ - DM - DO - EC - EG - SV - GQ - ER - EE - ET - FK - FO - FJ - FI - FR - GF - PF - TF - GA - GM - GE - DE - GH - GI - GR - GL - GD - GP - GU - GT - GN - GW - GY - HT - HM - VA - HN - HK - HU - IS - IN - ID - IR - IQ - IE - IL - IT - JM - JP - JO - KZ - KE - KI - KP - KR - KW - KG - LA - LV - LB - LS - LR - LY - LI - LT - LU - MO - MG - MW - MY - MV - ML - MT - MH - MQ - MR - MU - YT - MX - FM - MD - MC - MN - MS - MA - MZ - MM - NA - NR - NP - NL - NC - NZ - NI - NE - NG - NU - NF - MP - MK - 'NO' - OM - PK - PW - PS - PA - PG - PY - PE - PH - PN - PL - PT - PR - QA - RE - RO - RU - RW - SH - KN - LC - PM - VC - WS - SM - ST - SA - SN - SC - SL - SG - SK - SI - SB - SO - ZA - GS - ES - LK - SD - SR - SJ - SZ - SE - CH - SY - TW - TJ - TZ - TH - TL - TG - TK - TO - TT - TN - TR - TM - TC - TV - UG - UA - AE - GB - US - UM - UY - UZ - VU - VE - VN - VG - VI - WF - EH - YE - ZM - ZW - AX - BQ - CW - GG - IM - JE - ME - BL - MF - RS - SX - SS - XK availableMarkets: type: array items: type: string enum: - AF - AL - DZ - AS - AD - AO - AI - AQ - AG - AR - AM - AW - AU - AT - AZ - BS - BH - BD - BB - BY - BE - BZ - BJ - BM - BT - BO - BA - BW - BV - BR - IO - BN - BG - BF - BI - KH - CM - CA - CV - KY - CF - TD - CL - CN - CX - CC - CO - KM - CG - CD - CK - CR - CI - HR - CU - CY - CZ - DK - DJ - DM - DO - EC - EG - SV - GQ - ER - EE - ET - FK - FO - FJ - FI - FR - GF - PF - TF - GA - GM - GE - DE - GH - GI - GR - GL - GD - GP - GU - GT - GN - GW - GY - HT - HM - VA - HN - HK - HU - IS - IN - ID - IR - IQ - IE - IL - IT - JM - JP - JO - KZ - KE - KI - KP - KR - KW - KG - LA - LV - LB - LS - LR - LY - LI - LT - LU - MO - MG - MW - MY - MV - ML - MT - MH - MQ - MR - MU - YT - MX - FM - MD - MC - MN - MS - MA - MZ - MM - NA - NR - NP - NL - NC - NZ - NI - NE - NG - NU - NF - MP - MK - 'NO' - OM - PK - PW - PS - PA - PG - PY - PE - PH - PN - PL - PT - PR - QA - RE - RO - RU - RW - SH - KN - LC - PM - VC - WS - SM - ST - SA - SN - SC - SL - SG - SK - SI - SB - SO - ZA - GS - ES - LK - SD - SR - SJ - SZ - SE - CH - SY - TW - TJ - TZ - TH - TL - TG - TK - TO - TT - TN - TR - TM - TC - TV - UG - UA - AE - GB - US - UM - UY - UZ - VU - VE - VN - VG - VI - WF - EH - YE - ZM - ZW - AX - BQ - CW - GG - IM - JE - ME - BL - MF - RS - SX - SS - XK express: type: boolean paymentMode: type: string enum: - direct - settlement x-enumNames: - Direct - Settlement handshake: type: boolean guest: type: boolean disableBankSelection: type: boolean price: type: object properties: total: type: number minimum: 0.01 exclusiveMinimum: false currency: type: string enum: - EUR - USD - GBP - PLN - SEK - DKK x-enumNames: - EUR - USD - GBP - PLN - SEK - DKK subTotal: type: number shipping: type: number totalNet: type: number vat: type: number required: - total - currency appId: type: string merchantAppId: type: string merchant: type: object properties: id: type: string appId: type: string address: type: object properties: firstName: type: string lastName: type: string line1: type: string minLength: 1 line2: type: string region: type: string city: type: string minLength: 1 zipCode: type: string minLength: 1 country: type: string enum: - AF - AL - DZ - AS - AD - AO - AI - AQ - AG - AR - AM - AW - AU - AT - AZ - BS - BH - BD - BB - BY - BE - BZ - BJ - BM - BT - BO - BA - BW - BV - BR - IO - BN - BG - BF - BI - KH - CM - CA - CV - KY - CF - TD - CL - CN - CX - CC - CO - KM - CG - CD - CK - CR - CI - HR - CU - CY - CZ - DK - DJ - DM - DO - EC - EG - SV - GQ - ER - EE - ET - FK - FO - FJ - FI - FR - GF - PF - TF - GA - GM - GE - DE - GH - GI - GR - GL - GD - GP - GU - GT - GN - GW - GY - HT - HM - VA - HN - HK - HU - IS - IN - ID - IR - IQ - IE - IL - IT - JM - JP - JO - KZ - KE - KI - KP - KR - KW - KG - LA - LV - LB - LS - LR - LY - LI - LT - LU - MO - MG - MW - MY - MV - ML - MT - MH - MQ - MR - MU - YT - MX - FM - MD - MC - MN - MS - MA - MZ - MM - NA - NR - NP - NL - NC - NZ - NI - NE - NG - NU - NF - MP - MK - 'NO' - OM - PK - PW - PS - PA - PG - PY - PE - PH - PN - PL - PT - PR - QA - RE - RO - RU - RW - SH - KN - LC - PM - VC - WS - SM - ST - SA - SN - SC - SL - SG - SK - SI - SB - SO - ZA - GS - ES - LK - SD - SR - SJ - SZ - SE - CH - SY - TW - TJ - TZ - TH - TL - TG - TK - TO - TT - TN - TR - TM - TC - TV - UG - UA - AE - GB - US - UM - UY - UZ - VU - VE - VN - VG - VI - WF - EH - YE - ZM - ZW - AX - BQ - CW - GG - IM - JE - ME - BL - MF - RS - SX - SS - XK required: - line1 - city - zipCode - country legalName: type: string required: - id - appId - legalName lineItems: type: array items: type: object properties: name: description: Customer-facing name of the line item. type: string referenceId: description: An internal unique id stored to this line item. type: string singleNet: type: number singleVat: type: number amount: description: >- Accumulated cost in decimals. For example, for a lineItem with total price 3.00 and quantity 4, amount would be equal to 12.00. type: number quantity: description: Quantity of this lineItem. type: number default: 1 image: description: An image of the line item. Valid URLs are accepted only. type: string category: type: string enum: - '5045' - '5065' - '5094' - '5192' - '5193' - '5499' - '5655' - '5691' - '5712' - '5722' - '5812' - '5814' - '5912' - '5977' - '5999' - '7629' EAN: type: string co2Grams: type: number minimum: 0 exclusiveMinimum: false required: - name - singleNet - singleVat - amount plugin: type: string prefill: type: object properties: bankId: type: string pattern: ^[a-z]{2}-[a-z0-9+/-]{1,}$ required: - bankId locale: type: string enum: - de - nl - en - fr - es - fi - it - pt - sv - pl - sk - lt required: type: object properties: phone: type: boolean required: - phone offsetProject: type: string expiresAt: type: number created: type: number impactOffsetProjects: type: array items: type: string shopLogo: type: string shopName: type: string customer: type: object properties: id: type: string required: - id incentiveMode: type: string shippingMethods: type: array items: {} selectedShippingMethodId: type: string status: type: string enum: - open - closed - expired x-enumNames: - OPEN - CLOSED - EXPIRED referenceId: type: string displayId: type: string metadata: type: object additionalProperties: {} category: type: string abortReason: type: string billingAddress: type: object properties: firstName: type: string lastName: type: string line1: type: string minLength: 1 line2: type: string region: type: string city: type: string minLength: 1 zipCode: type: string minLength: 1 country: type: string enum: - AF - AL - DZ - AS - AD - AO - AI - AQ - AG - AR - AM - AW - AU - AT - AZ - BS - BH - BD - BB - BY - BE - BZ - BJ - BM - BT - BO - BA - BW - BV - BR - IO - BN - BG - BF - BI - KH - CM - CA - CV - KY - CF - TD - CL - CN - CX - CC - CO - KM - CG - CD - CK - CR - CI - HR - CU - CY - CZ - DK - DJ - DM - DO - EC - EG - SV - GQ - ER - EE - ET - FK - FO - FJ - FI - FR - GF - PF - TF - GA - GM - GE - DE - GH - GI - GR - GL - GD - GP - GU - GT - GN - GW - GY - HT - HM - VA - HN - HK - HU - IS - IN - ID - IR - IQ - IE - IL - IT - JM - JP - JO - KZ - KE - KI - KP - KR - KW - KG - LA - LV - LB - LS - LR - LY - LI - LT - LU - MO - MG - MW - MY - MV - ML - MT - MH - MQ - MR - MU - YT - MX - FM - MD - MC - MN - MS - MA - MZ - MM - NA - NR - NP - NL - NC - NZ - NI - NE - NG - NU - NF - MP - MK - 'NO' - OM - PK - PW - PS - PA - PG - PY - PE - PH - PN - PL - PT - PR - QA - RE - RO - RU - RW - SH - KN - LC - PM - VC - WS - SM - ST - SA - SN - SC - SL - SG - SK - SI - SB - SO - ZA - GS - ES - LK - SD - SR - SJ - SZ - SE - CH - SY - TW - TJ - TZ - TH - TL - TG - TK - TO - TT - TN - TR - TM - TC - TV - UG - UA - AE - GB - US - UM - UY - UZ - VU - VE - VN - VG - VI - WF - EH - YE - ZM - ZW - AX - BQ - CW - GG - IM - JE - ME - BL - MF - RS - SX - SS - XK required: - line1 - city - zipCode - country shippingAddress: type: object properties: firstName: type: string lastName: type: string line1: type: string minLength: 1 line2: type: string region: type: string city: type: string minLength: 1 zipCode: type: string minLength: 1 country: type: string enum: - AF - AL - DZ - AS - AD - AO - AI - AQ - AG - AR - AM - AW - AU - AT - AZ - BS - BH - BD - BB - BY - BE - BZ - BJ - BM - BT - BO - BA - BW - BV - BR - IO - BN - BG - BF - BI - KH - CM - CA - CV - KY - CF - TD - CL - CN - CX - CC - CO - KM - CG - CD - CK - CR - CI - HR - CU - CY - CZ - DK - DJ - DM - DO - EC - EG - SV - GQ - ER - EE - ET - FK - FO - FJ - FI - FR - GF - PF - TF - GA - GM - GE - DE - GH - GI - GR - GL - GD - GP - GU - GT - GN - GW - GY - HT - HM - VA - HN - HK - HU - IS - IN - ID - IR - IQ - IE - IL - IT - JM - JP - JO - KZ - KE - KI - KP - KR - KW - KG - LA - LV - LB - LS - LR - LY - LI - LT - LU - MO - MG - MW - MY - MV - ML - MT - MH - MQ - MR - MU - YT - MX - FM - MD - MC - MN - MS - MA - MZ - MM - NA - NR - NP - NL - NC - NZ - NI - NE - NG - NU - NF - MP - MK - 'NO' - OM - PK - PW - PS - PA - PG - PY - PE - PH - PN - PL - PT - PR - QA - RE - RO - RU - RW - SH - KN - LC - PM - VC - WS - SM - ST - SA - SN - SC - SL - SG - SK - SI - SB - SO - ZA - GS - ES - LK - SD - SR - SJ - SZ - SE - CH - SY - TW - TJ - TZ - TH - TL - TG - TK - TO - TT - TN - TR - TM - TC - TV - UG - UA - AE - GB - US - UM - UY - UZ - VU - VE - VN - VG - VI - WF - EH - YE - ZM - ZW - AX - BQ - CW - GG - IM - JE - ME - BL - MF - RS - SX - SS - XK required: - line1 - city - zipCode - country redirectUrl: type: string successCallbackUrl: type: string errorCallbackUrl: type: string quoteCallbackUrl: type: string completeCallbackUrl: type: string createdAt: {} updatedAt: {} subaccountId: type: string paymentSchemeSelection: type: string enum: - instant_preferred - standard - instant_only x-enumNames: - InstantPreferred - Standard - InstantOnly required: - id - price - appId - merchantAppId - merchant - lineItems - expiresAt - created - status - referenceId - displayId - redirectUrl - successCallbackUrl - errorCallbackUrl required: - id - type - date - payload ````