Ramp Developer API Webhooks

asyncapi: 2.6.0
info:
  title: Ramp Developer API Webhooks
  version: 1.0.0
  description: |
    Event-driven surface for the Ramp Developer API. Ramp delivers
    webhook events to subscriber-provided HTTPS endpoints whenever
    state changes occur on resources such as transactions, bills,
    reimbursements, purchase orders, vendors, users, and unified
    requests.

    All payloads share a common envelope and are signed with an
    HMAC-SHA256 signature delivered in the `X-Ramp-Signature`
    request header so consumers can verify authenticity.

    Source: https://docs.ramp.com/developer-api/v1/webhooks

    NOTE: The user task brief referenced a Svix signature scheme.
    Ramp's public documentation describes signing using the
    `X-Ramp-Signature` header (HMAC-SHA256 of the raw request body
    with the subscription secret). The spec below models Ramp's
    documented scheme rather than a fabricated Svix scheme so the
    artifact stays faithful to the source. Consumers integrating
    via a Svix-style relay should treat the documented Ramp signing
    headers as canonical.
  contact:
    name: Ramp Developer Support
    url: https://docs.ramp.com/developer-api/v1/overview/introduction
  license:
    name: Ramp Platform Agreement
    url: https://ramp.com/legal/platform-agreement
  tags:
    - name: corporate-cards
    - name: spend-management
    - name: webhooks
    - name: events

defaultContentType: application/json

servers:
  subscriber:
    url: '{webhookUrl}'
    protocol: https
    description: |
      Subscriber-controlled HTTPS endpoint registered with Ramp.
      Ramp POSTs each event to this URL. Endpoints must respond
      with a 2xx status within 10 seconds; otherwise Ramp retries
      (429/5xx only) up to 10 times with exponential backoff and
      jitter (0-60s initial delay).
    variables:
      webhookUrl:
        default: https://example.com/webhooks/ramp
        description: Fully-qualified HTTPS URL configured on the Ramp webhook subscription.

channels:
  ramp/webhook:
    description: |
      Single inbound channel that receives every Ramp webhook event.
      Consumers route on the envelope `type` field. The complete list
      of event types is enumerated in the `RampEventType` schema.
    bindings:
      http:
        type: request
        method: POST
        bindingVersion: 0.3.0
    subscribe:
      summary: Receive a Ramp webhook event.
      operationId: receiveRampWebhook
      bindings:
        http:
          type: request
          method: POST
          bindingVersion: 0.3.0
      message:
        oneOf:
          - $ref: '#/components/messages/ApplicationsStatusUpdated'
          - $ref: '#/components/messages/BillsApproved'
          - $ref: '#/components/messages/BillsArchived'
          - $ref: '#/components/messages/BillsCreated'
          - $ref: '#/components/messages/BillsPaid'
          - $ref: '#/components/messages/BillsReadyToSync'
          - $ref: '#/components/messages/BillsRejected'
          - $ref: '#/components/messages/EntitiesCreated'
          - $ref: '#/components/messages/ItemReceiptsCreated'
          - $ref: '#/components/messages/PaymentsUpdated'
          - $ref: '#/components/messages/PurchaseOrdersArchived'
          - $ref: '#/components/messages/PurchaseOrdersCreated'
          - $ref: '#/components/messages/PurchaseOrdersUpdated'
          - $ref: '#/components/messages/ReimbursementsBatchPaymentReimbursed'
          - $ref: '#/components/messages/ReimbursementsReadyForReview'
          - $ref: '#/components/messages/ReimbursementsReadyToSync'
          - $ref: '#/components/messages/ReimbursementsSyncRequested'
          - $ref: '#/components/messages/SpendRequestsCommentCreated'
          - $ref: '#/components/messages/TransactionsAuthorized'
          - $ref: '#/components/messages/TransactionsCleared'
          - $ref: '#/components/messages/TransactionsDeclined'
          - $ref: '#/components/messages/TransactionsReadyForReview'
          - $ref: '#/components/messages/TransactionsReadyToSync'
          - $ref: '#/components/messages/TransactionsSyncRequested'
          - $ref: '#/components/messages/TransactionsSynced'
          - $ref: '#/components/messages/UnifiedRequestsCreated'
          - $ref: '#/components/messages/UnifiedRequestsExternalApprovalRequest'
          - $ref: '#/components/messages/UnifiedRequestsExternalApprovalRequestReset'
          - $ref: '#/components/messages/UnifiedRequestsModified'
          - $ref: '#/components/messages/UnifiedRequestsNodeAdvanced'
          - $ref: '#/components/messages/UnifiedRequestsOverrideApproved'
          - $ref: '#/components/messages/UnifiedRequestsUpdated'
          - $ref: '#/components/messages/UsersInviteAccepted'
          - $ref: '#/components/messages/VendorsActivated'
          - $ref: '#/components/messages/VendorsUpdated'
          - $ref: '#/components/messages/TestsTestEvent'

components:
  messageTraits:
    RampWebhookHeaders:
      headers:
        type: object
        required:
          - X-Ramp-Signature
        properties:
          X-Ramp-Signature:
            type: string
            description: |
              HMAC-SHA256 hash of the raw request body, signed with
              the webhook subscription secret. Verify by recomputing
              the HMAC over the exact raw bytes received and comparing
              in constant time.
            example: <hmac-sha256-hex>
          Content-Type:
            type: string
            const: application/json
          User-Agent:
            type: string
            description: Identifies the Ramp webhook delivery agent.

  messages:
    ApplicationsStatusUpdated:
      name: ApplicationsStatusUpdated
      title: applications.status_updated
      summary: Fired when a Ramp application status changes (e.g. IN_REVIEW, APPROVED, REJECTED).
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: applications.status_updated

    BillsApproved:
      name: BillsApproved
      title: bills.approved
      summary: Fired when a bill is approved.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: bills.approved

    BillsArchived:
      name: BillsArchived
      title: bills.archived
      summary: Fired when a bill is archived.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: bills.archived

    BillsCreated:
      name: BillsCreated
      title: bills.created
      summary: Fired when a new bill is created.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: bills.created

    BillsPaid:
      name: BillsPaid
      title: bills.paid
      summary: Fired when a bill payment completes.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: bills.paid

    BillsReadyToSync:
      name: BillsReadyToSync
      title: bills.ready_to_sync
      summary: Fired when a bill is ready to sync to accounting.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: bills.ready_to_sync

    BillsRejected:
      name: BillsRejected
      title: bills.rejected
      summary: Fired when a bill is rejected.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: bills.rejected

    EntitiesCreated:
      name: EntitiesCreated
      title: entities.created
      summary: Fired when a business entity is created.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: entities.created

    ItemReceiptsCreated:
      name: ItemReceiptsCreated
      title: item_receipts.created
      summary: Fired when an item receipt is created.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: item_receipts.created

    PaymentsUpdated:
      name: PaymentsUpdated
      title: payments.updated
      summary: Fired when a bill payment state updates.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: payments.updated

    PurchaseOrdersArchived:
      name: PurchaseOrdersArchived
      title: purchase_orders.archived
      summary: Fired when a purchase order is archived.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: purchase_orders.archived

    PurchaseOrdersCreated:
      name: PurchaseOrdersCreated
      title: purchase_orders.created
      summary: Fired when a purchase order is created.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: purchase_orders.created

    PurchaseOrdersUpdated:
      name: PurchaseOrdersUpdated
      title: purchase_orders.updated
      summary: Fired when a purchase order is updated.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: purchase_orders.updated

    ReimbursementsBatchPaymentReimbursed:
      name: ReimbursementsBatchPaymentReimbursed
      title: reimbursements.batch_payment_reimbursed
      summary: Fired when a batch reimbursement payment is disbursed.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: reimbursements.batch_payment_reimbursed

    ReimbursementsReadyForReview:
      name: ReimbursementsReadyForReview
      title: reimbursements.ready_for_review
      summary: Fired when a reimbursement is ready for review.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: reimbursements.ready_for_review

    ReimbursementsReadyToSync:
      name: ReimbursementsReadyToSync
      title: reimbursements.ready_to_sync
      summary: Fired when a reimbursement is ready to sync to accounting.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: reimbursements.ready_to_sync

    ReimbursementsSyncRequested:
      name: ReimbursementsSyncRequested
      title: reimbursements.sync_requested
      summary: Fired when a reimbursement sync is requested.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: reimbursements.sync_requested

    SpendRequestsCommentCreated:
      name: SpendRequestsCommentCreated
      title: spend_requests.comment_created
      summary: Fired when a comment is added to a spend request.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: spend_requests.comment_created

    TransactionsAuthorized:
      name: TransactionsAuthorized
      title: transactions.authorized
      summary: Fired when a corporate-card transaction is authorized.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.authorized

    TransactionsCleared:
      name: TransactionsCleared
      title: transactions.cleared
      summary: Fired when a corporate-card transaction settles/clears.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.cleared

    TransactionsDeclined:
      name: TransactionsDeclined
      title: transactions.declined
      summary: Fired when a corporate-card transaction is declined.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.declined

    TransactionsReadyForReview:
      name: TransactionsReadyForReview
      title: transactions.ready_for_review
      summary: Fired when a transaction is ready for review.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.ready_for_review

    TransactionsReadyToSync:
      name: TransactionsReadyToSync
      title: transactions.ready_to_sync
      summary: Fired when a transaction is ready to sync to accounting.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.ready_to_sync

    TransactionsSyncRequested:
      name: TransactionsSyncRequested
      title: transactions.sync_requested
      summary: Fired when a transaction sync is requested.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.sync_requested

    TransactionsSynced:
      name: TransactionsSynced
      title: transactions.synced
      summary: Fired when a transaction has been synced to accounting.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: transactions.synced

    UnifiedRequestsCreated:
      name: UnifiedRequestsCreated
      title: unified_requests.created
      summary: Fired when a unified request is created.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.created

    UnifiedRequestsExternalApprovalRequest:
      name: UnifiedRequestsExternalApprovalRequest
      title: unified_requests.external_approval_request
      summary: Fired when a unified request requires external approval.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.external_approval_request

    UnifiedRequestsExternalApprovalRequestReset:
      name: UnifiedRequestsExternalApprovalRequestReset
      title: unified_requests.external_approval_request_reset
      summary: Fired when an external approval request on a unified request is reset.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.external_approval_request_reset

    UnifiedRequestsModified:
      name: UnifiedRequestsModified
      title: unified_requests.modified
      summary: Fired when a unified request is modified.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.modified

    UnifiedRequestsNodeAdvanced:
      name: UnifiedRequestsNodeAdvanced
      title: unified_requests.node_advanced
      summary: Fired when a unified request advances to the next approval node.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.node_advanced

    UnifiedRequestsOverrideApproved:
      name: UnifiedRequestsOverrideApproved
      title: unified_requests.override_approved
      summary: Fired when a unified request is approved via override.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.override_approved

    UnifiedRequestsUpdated:
      name: UnifiedRequestsUpdated
      title: unified_requests.updated
      summary: Fired when a unified request is updated.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: unified_requests.updated

    UsersInviteAccepted:
      name: UsersInviteAccepted
      title: users.invite_accepted
      summary: Fired when an invited user accepts their Ramp invitation.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: users.invite_accepted

    VendorsActivated:
      name: VendorsActivated
      title: vendors.activated
      summary: Fired when a vendor is activated.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: vendors.activated

    VendorsUpdated:
      name: VendorsUpdated
      title: vendors.updated
      summary: Fired when a vendor record is updated.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: vendors.updated

    TestsTestEvent:
      name: TestsTestEvent
      title: tests.test_event
      summary: Test event delivered when a subscription's test action is invoked.
      traits:
        - $ref: '#/components/messageTraits/RampWebhookHeaders'
      payload:
        allOf:
          - $ref: '#/components/schemas/RampEventEnvelope'
          - type: object
            properties:
              type:
                const: tests.test_event

  schemas:
    RampEventEnvelope:
      type: object
      description: |
        Common envelope shared by every Ramp webhook delivery. The
        `object` field carries the resource identifier; use the
        corresponding Developer API resource endpoint to hydrate the
        full record. Event IDs are stable across retries to support
        idempotency.
      required:
        - id
        - type
        - created_at
        - business_id
        - object
      properties:
        id:
          type: string
          description: Unique event identifier. Stable across retry attempts.
          example: evt_01HXYZABCDEF
        type:
          $ref: '#/components/schemas/RampEventType'
        created_at:
          type: string
          format: date-time
          description: ISO 8601 timestamp when the event was generated.
          example: '2026-05-30T12:34:56Z'
        business_id:
          type: string
          description: Identifier of the Ramp business account associated with the event.
          example: bus_01HXYZ123456
        object:
          type: object
          description: |
            Reference to the affected resource. Carries at minimum
            the resource identifier so subscribers can call the
            Developer API to fetch the current state.
          required:
            - id
          properties:
            id:
              type: string
              description: Identifier of the affected resource.
              example: txn_01HXYZ7891011
            type:
              type: string
              description: Resource type (e.g. transaction, bill, reimbursement).

    RampEventType:
      type: string
      description: Enumeration of every webhook event type Ramp may emit.
      enum:
        - applications.status_updated
        - bills.approved
        - bills.archived
        - bills.created
        - bills.paid
        - bills.ready_to_sync
        - bills.rejected
        - entities.created
        - item_receipts.created
        - payments.updated
        - purchase_orders.archived
        - purchase_orders.created
        - purchase_orders.updated
        - reimbursements.batch_payment_reimbursed
        - reimbursements.ready_for_review
        - reimbursements.ready_to_sync
        - reimbursements.sync_requested
        - spend_requests.comment_created
        - transactions.authorized
        - transactions.cleared
        - transactions.declined
        - transactions.ready_for_review
        - transactions.ready_to_sync
        - transactions.sync_requested
        - transactions.synced
        - unified_requests.created
        - unified_requests.external_approval_request
        - unified_requests.external_approval_request_reset
        - unified_requests.modified
        - unified_requests.node_advanced
        - unified_requests.override_approved
        - unified_requests.updated
        - users.invite_accepted
        - vendors.activated
        - vendors.updated
        - tests.test_event

  securitySchemes:
    rampWebhookSignature:
      type: httpApiKey
      in: header
      name: X-Ramp-Signature
      description: |
        Each delivery includes `X-Ramp-Signature`, an HMAC-SHA256
        hash of the raw request body computed with the webhook
        subscription's signing secret. Verify before processing.