> ## Documentation Index
> Fetch the complete documentation index at: https://partners.elementpay.net/llms.txt
> Use this file to discover all available pages before exploring further.

# List signing keys for a customer

> List EIP-712 signing keys enrolled for a vault customer. Active keys include
``next_nonce`` for accept replay protection. Used with Console **Signed accepts**.
See the Customer-signed accepts guide.



## OpenAPI

````yaml /api-reference/openapi.json get /partner/customers/{customer_id}/signing-keys
openapi: 3.1.0
info:
  title: Element Pay Partner API
  description: >
    Provider-neutral fiat ↔ crypto ramps for partners. Discover corridors,
    create a binding quote, accept it, and receive webhooks. African local fiat
    (mobile money and bank) is auto-routed by corridor.


    ## Agent / integrator notes


    - Canonical machine-readable contract: `openapi.yaml` (this document) and
    `openapi.json`.

    - Human/agent quickstart: `docs/agents.md` - local fiat <-> USDC/USDT:
    `docs/integration-fiat-stablecoin.md` - gaps: `docs/KNOWN_GAPS.md`.

    - All partner routes are under `/partner/*` relative to the server base URL.

    - Settlement source of truth: webhooks (see `webhooks` section); poll `GET
    /partner/orders/{order_id}` as backup.
  version: 1.0.0
servers:
  - url: https://sandbox.elementpay.net/api/v1
    description: Sandbox (API keys prefixed is_test_)
  - url: https://api.elementpay.net/api/v1
    description: Production (API keys prefixed is_live_)
security:
  - APIKeyHeader: []
tags:
  - name: partner
    description: >-
      Corridor discovery, indicative rates, binding quotes, and order acceptance
      (including order-path account currency conversion rails). Customer ledger
      conversions use partner-customer-transfers `/conversions`.
    x-group: Partner
  - name: partner-customers
    description: >-
      Vault KYC: requirements, create, list, get/update, documents, submit, and
      revoke (`pcus_*`).
    x-group: Customers
  - name: partner-customer-accounts
    description: >-
      Customer deposit rails: open / list / get accounts and deposit
      instructions.
    x-group: Customer accounts
  - name: partner-customer-transfers
    description: >-
      On-ledger money movement: stablecoin sends, same-currency book transfers,
      and cross-currency conversions.
    x-group: Customer transfers
  - name: partner-customer-payouts
    description: >-
      External bank payouts: scheme discovery, local bank directory
      (NGN/GHS/CAD), preview, confirm, and status.
    x-group: Customer payouts
paths:
  /partner/customers/{customer_id}/signing-keys:
    get:
      tags:
        - partner-customers
      summary: List signing keys for a customer
      description: >-
        List EIP-712 signing keys enrolled for a vault customer. Active keys
        include

        ``next_nonce`` for accept replay protection. Used with Console **Signed
        accepts**.

        See the Customer-signed accepts guide.
      operationId: partner_customer_signing_keys_list
      parameters:
        - name: customer_id
          in: path
          required: true
          schema:
            type: string
            description: Public customer id returned on create
            examples:
              - pcus_a1b2c3d4e5f6
            title: Customer Id
            example: pcus_a1b2c3d4e5f6
          description: Public customer id returned on create
          example: pcus_a1b2c3d4e5f6
      responses:
        '200':
          description: Signing keys listed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PartnerSuccessEnvelope'
              example:
                status: success
                message: Signing keys
                data:
                  keys:
                    - key_id: skey_a1b2c3d4e5f6
                      address: '0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe'
                      status: active
                      nonce_high_water: 0
                      next_nonce: 1
                      activated_at: '2026-09-22T08:21:00+00:00'
                      revoked_at: null
                      created_at: '2026-09-22T08:20:00+00:00'
        '404':
          description: Customer not found
          content:
            application/json:
              example:
                status: error
                message: Customer not found
                data:
                  field: customer_id
      security:
        - APIKeyHeader: []
components:
  schemas:
    PartnerSuccessEnvelope:
      type: object
      required:
        - status
        - message
        - data
      properties:
        status:
          type: string
          enum:
            - success
        message:
          type: string
        data:
          type: object
  securitySchemes:
    APIKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key
      description: >-
        Partner API key. Sandbox keys start with `is_test_`; production keys
        start with `is_live_`. Keys are not interchangeable across environments.
        Send on every request. Never expose in browser or mobile clients.

````