Euler Finance FeeFlow API

openapi: 3.2.0
info:
  title: Euler Fee Flow API
  version: 3.0.0
  description: 'Operations tagged FeeFlow across 2 of this provider''s published API definitions: euler-openapi.json, euler-v3-data-api.json. Each path carries the servers of the definition it was published in.'
servers:
- url: /
  description: Current environment
security: []
tags:
- name: FeeFlow
  description: Fee-flow event resources and fee-related historical activity.
paths:
  /v3/fee-flow/events:
    get:
      tags:
      - FeeFlow
      summary: Unified fee-flow event timeline
      description: 'Unified stream of fee-flow events with current indexed coverage (`buy`).

        `chainId`, `from`, and `to` are required.

        Pagination reports `hasMore`; this endpoint does not compute an exact `total`.'
      x-status: implemented
      x-cache-ttl: 60
      parameters:
      - name: chainId
        in: query
        required: true
        schema:
          type: string
        description: Comma-separated chain IDs.
      - name: from
        in: query
        required: true
        schema:
          type: integer
      - name: to
        in: query
        required: true
        schema:
          type: integer
      - name: type
        in: query
        required: false
        schema:
          type: string
        description: Comma-separated event type filter. Current supported value is `buy`. Unknown values return 400.
      - $ref: '#/components/parameters/IndexedEventsOffsetParam'
      - $ref: '#/components/parameters/LimitParam'
      responses:
        '200':
          description: Fee-flow events
          headers:
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                        chainId:
                          type: integer
                        type:
                          type: string
                        timestamp:
                          type: string
                          format: date-time
                        blockNumber:
                          type: string
                        txHash:
                          type: string
                        logIndex:
                          type: integer
                        payload:
                          type: object
                  meta:
                    $ref: '#/components/schemas/PaginationMeta'
        '400':
          $ref: '#/components/responses/Error400'
        '404':
          $ref: '#/components/responses/Error404'
        '429':
          $ref: '#/components/responses/Error429'
        '500':
          $ref: '#/components/responses/Error500'
      operationId: getFeeFlowEvents
    servers:
    - url: /
      description: Current environment
components:
  schemas:
    LabelHoldSummary:
      description: What a draft read shows on a held row.
      type: object
      required:
      - id
      - kind
      - reason
      - since
      properties:
        id:
          type: string
          format: uuid
        kind:
          type: string
          enum:
          - quarantine
          - entity-hold
        reason:
          type: string
        since:
          type: string
          format: date-time
    ListingFlag:
      type: boolean
      nullable: true
      description: Curator listing flag. `null` leaves the decision to platform overrides and deprecation, `true` hides the vault(s) from discovery, `false` keeps a deprecated vault listed.
    ErrorResponse:
      type: object
      required:
      - error
      properties:
        error:
          type: object
          required:
          - code
          - message
          - requestId
          properties:
            code:
              type: string
              description: 'Domain error code. Examples:

                - BAD_REQUEST

                - INVALID_ADDRESS

                - INVALID_CHAIN_ID

                - CHAIN_NOT_SUPPORTED

                - CHAIN_CAPABILITY_DISABLED

                - NOT_FOUND

                - VAULT_NOT_FOUND

                - TOKEN_NOT_FOUND

                - ACCOUNT_NOT_FOUND

                - VALIDATION_ERROR

                - CONFLICT

                - PRECONDITION_FAILED

                - PAYLOAD_TOO_LARGE

                - RATE_LIMIT_EXCEEDED

                - UNSUPPORTED_MEDIA_TYPE

                - UPSTREAM_TIMEOUT

                - UNAUTHORIZED

                - FORBIDDEN

                - SERVICE_UNAVAILABLE

                - SERVICE_DISABLED

                - INTERNAL_ERROR

                '
            message:
              type: string
            requestId:
              type: string
            details:
              type: object
              additionalProperties: true
              description: Context of the error. Where present, `details.reason` is a stable kebab-case value to key on, and `details.cause` narrows a reason that has several causes. The labels routes list theirs in the Labels tag.
    ExcludedChains:
      type: array
      description: 'On a read across chains that names no `chainId`: the served chains it left out because they do not run the capability the operation needs, rather than reading them as empty. Absent when no chain was left out.'
      items:
        type: object
        required:
        - chainId
        - capability
        properties:
          chainId:
            type: integer
          capability:
            type: string
            enum:
            - indexing
            - activity
            - prices
            - historicalPrices
            - assessments
            - labels
            - logos
            - stats
            - risk
            - rewards
            - apys
    ProductPlatformListing:
      description: The platform-owned discovery decision on a product, as a product row shows it.
      type: object
      required:
      - notExplorableLend
      - notExplorableBorrow
      - reason
      properties:
        notExplorableLend:
          type: boolean
        notExplorableBorrow:
          type: boolean
        reason:
          type: string
          nullable: true
    ResolvedProductLabels:
      type: object
      readOnly: true
      description: Read-time entity fallbacks for display. Derived, never stored.
      required:
      - entityName
      - url
      - logo
      properties:
        entityName:
          type: string
          nullable: true
        url:
          type: string
          nullable: true
          description: Product url, falling back to the owning entity url.
        logo:
          type: string
          nullable: true
          description: Product logo, falling back to the owning entity logo.
    PaginationMeta:
      type: object
      required:
      - timestamp
      properties:
        total:
          type: integer
          description: Exact total count when the endpoint provides one.
        hasMore:
          type: boolean
          description: Indicates whether another page exists beyond the current page.
        offset:
          type: integer
        limit:
          type: integer
          description: Echoed page size after endpoint-side clamping.
        outcome:
          type: string
          enum:
          - disabled
          - removed
          description: On a toolbox config DELETE, what happened to the row.
        products:
          type: array
          description: 'On a curation vault `POST`, `PUT`, or `PATCH`: the products the write touched (the one the vault left and the one it joined) as they are after the write, `governanceMode` included, so the caller applies them instead of re-reading.'
          items:
            $ref: '#/components/schemas/ProductLabels'
        timestamp:
          type: string
          format: date-time
        chainId:
          type: string
          description: Comma-separated chain IDs for multi-chain responses.
        degradedProviders:
          type: array
          items:
            type: string
          description: Live providers whose data is incomplete in this response.
        excludedChains:
          $ref: '#/components/schemas/ExcludedChains'
    ProductLabels:
      type: object
      required:
      - id
      - chainId
      - entityId
      - coBrandEntityIds
      - name
      - isDeprecated
      - notExplorable
      - governanceMode
      - resolved
      - anyExplorableLend
      - anyExplorableBorrow
      - createdAt
      - updatedAt
      properties:
        id:
          type: string
          pattern: ^[a-z0-9]+(?:-[a-z0-9]+)*$
        chainId:
          type: integer
          minimum: 1
        entityId:
          type: string
        coBrandEntityIds:
          type: array
          description: Additional entities whose logos should be displayed. Product management remains exclusively with entityId.
          items:
            type: string
        name:
          type: string
        logo:
          type: string
          nullable: true
        description:
          type: string
          nullable: true
        url:
          type: string
          nullable: true
          maxLength: 2048
          pattern: ^[Hh][Tt][Tt][Pp][Ss]://
          description: Absolute https URL.
        portfolioNotice:
          type: string
          nullable: true
        isDeprecated:
          type: boolean
        deprecationReason:
          type: string
          nullable: true
        notExplorable:
          allOf:
          - $ref: '#/components/schemas/ListingFlag'
          description: Product-wide curator listing flag applied to both sides of every member vault unless a vault-level flag overrides it.
        governanceMode:
          type: string
          enum:
          - governed
          - ungoverned
          - unknown
          readOnly: true
          description: Derived by the server from the on-chain governor of member vaults; clients cannot set it. Products are created as `unknown`. Every vault assignment recomputes the mode over the resulting member set and rejects sets that mix governed and ungoverned vaults. Layer 2 adopts `governed` or `ungoverned` for an `unknown` product once its membership verifies against chain state. Entity members cannot update or delete an `ungoverned` product or its vaults after the initial assignment.
        resolved:
          $ref: '#/components/schemas/ResolvedProductLabels'
        anyExplorableLend:
          type: boolean
          readOnly: true
          description: True when at least one member vault is lend-discoverable per the materialized visibility verdicts. Live chain state (e.g. borrowability) is deliberately excluded.
        anyExplorableBorrow:
          type: boolean
          readOnly: true
          description: True when at least one member vault is borrow-discoverable per the materialized visibility verdicts. Live chain state (e.g. borrowability) is deliberately excluded.
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        hold:
          type: object
          nullable: true
          description: The hold covering this row on a draft read; absent on published reads.
          allOf:
          - $ref: '#/components/schemas/LabelHoldSummary'
        platformListing:
          type: object
          nullable: true
          description: Euler's listing override on this product, shown to platform sessions on draft reads (null when there is none); absent on published reads and to curators.
          allOf:
          - $ref: '#/components/schemas/ProductPlatformListing'
    ErrorResponse_2:
      type: object
      required:
      - error
      properties:
        error:
          type: object
          required:
          - code
          - message
          - requestId
          properties:
            code:
              type: string
              description: 'Domain error code. Examples:

                - INVALID_ADDRESS

                - CHAIN_NOT_SUPPORTED

                - VAULT_NOT_FOUND

                - TOKEN_NOT_FOUND

                - ACCOUNT_NOT_FOUND

                - VALIDATION_ERROR

                - RATE_LIMIT_EXCEEDED

                - UNSUPPORTED_MEDIA_TYPE

                - UNAUTHORIZED

                - FORBIDDEN

                - INTERNAL_ERROR

                '
            message:
              type: string
            requestId:
              type: string
            details:
              type: object
              additionalProperties: true
    PaginationMeta_2:
      type: object
      required:
      - timestamp
      properties:
        total:
          type: integer
          description: Exact total count when the endpoint provides one.
        hasMore:
          type: boolean
          description: Indicates whether another page exists beyond the current page.
        offset:
          type: integer
        limit:
          type: integer
          description: Echoed page size after endpoint-side clamping.
        timestamp:
          type: string
          format: date-time
        chainId:
          type: string
          description: Comma-separated chain IDs for multi-chain responses.
  headers:
    X-Request-Id:
      description: Request identifier for tracing.
      schema:
        type: string
  parameters:
    LimitParam:
      name: limit
      in: query
      required: false
      description: Requested page size. Values above the endpoint cap are clamped; the default shared cap is 100.
      schema:
        type: integer
        minimum: 1
        default: 20
        maximum: 100
    IndexedEventsOffsetParam:
      name: offset
      in: query
      required: false
      description: Indexed-event page offset as a non-negative base-10 safe integer, with a maximum of 1000. Invalid values are rejected; use narrower time or event-type filters for deeper history.
      schema:
        type: integer
        minimum: 0
        maximum: 1000
        default: 0
    LimitParam_2:
      name: limit
      in: query
      required: false
      description: Requested page size. Values above the endpoint cap are clamped; the default shared cap is 100.
      schema:
        type: integer
        default: 20
        maximum: 100
    OffsetParam:
      name: offset
      in: query
      required: false
      schema:
        type: integer
        default: 0
  responses:
    Error400:
      description: Bad request
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Error500:
      description: Internal server error
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Error404:
      description: Not found
      headers:
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Error429:
      description: Rate limited
      headers:
        Retry-After:
          description: Seconds until next request is allowed.
          schema:
            type: integer
        X-Request-Id:
          $ref: '#/components/headers/X-Request-Id'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key authentication (optional; higher rate limits).
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: 'Alternative to X-API-Key using Authorization: Bearer <key>'
    AdminSecret:
      type: apiKey
      in: header
      name: X-Admin-Secret
      description: Admin secret (server-to-server) for API key management.
    PlatformSession:
      type: apiKey
      in: cookie
      name: euler_platform_session
      description: Signed, httpOnly platform-operator browser session cookie.
    PlatformCsrf:
      type: apiKey
      in: header
      name: X-CSRF-Token
      description: Double-submit CSRF token required for unsafe cookie-authenticated methods.
x-refined-from:
- euler-openapi.json
- euler-v3-data-api.json