> ## Documentation Index > Fetch the complete documentation index at: https://docs.natural.com/llms.txt > Use this file to discover all available pages before exploring further. # List customers > List customers who have delegated access to your agents. ## OpenAPI ````yaml /api-reference/openapi.json get /customers openapi: 3.1.1 info: title: Natural API version: 0.2.0 description: >- Natural's payments API for autonomous agents. **Base URL:** `https://api.natural.co` Agents and coding assistants should prefer the hosted MCP server at `https://mcp.natural.co` when an MCP-aware host runs the agent, the Natural CLI for terminal/CI workflows, and the official SDKs for application runtimes they own. Use direct HTTP only for explicit low-level integrations, unsupported SDK gaps, or infrastructure work where REST is required. For support: support@natural.co servers: - url: https://api.natural.co description: Production security: [] tags: - name: Agents description: Agent management - name: Customers description: Customer management - name: Counterparties description: Counterparty management - name: Payments description: Payment operations - name: Transactions description: Transaction activity and history operations - name: Transfers description: Deposit and withdrawal operations - name: PaymentRequests description: Payment-request management - name: Approvals description: Approval review operations - name: Invitations description: Party invitation management - name: Identity description: Caller identity introspection - name: Parties description: Party and organization management - name: Wallets description: Wallet balance, deposits, withdrawals, and external accounts - name: External Accounts description: Linked external bank accounts - name: API Keys description: API key management - name: Agent Keys description: Agent key management - name: Webhooks description: Webhook endpoint management - name: Events description: Webhook event log access paths: /customers: get: tags: - Customers summary: List customers description: List customers who have delegated access to your agents. operationId: customers.list parameters: - name: cursor in: query schema: type: string description: Cursor for pagination allowEmptyValue: true allowReserved: true - name: limit in: query schema: type: integer minimum: 1 maximum: 100 default: 20 description: Maximum number of results allowEmptyValue: true allowReserved: true - name: X-Agent-ID in: header required: false schema: anyOf: - type: string - type: 'null' description: Agent ID (agt_xxx) identifying which agent is making the request. - name: X-Instance-ID in: header required: false schema: anyOf: - type: string maxLength: 1024 - type: 'null' description: >- Required when X-Agent-ID is present. Session or conversation ID for agent observability. responses: '200': description: Successful Response content: application/json: schema: type: object properties: data: type: array items: type: object properties: type: description: Resource type type: string enum: - customer id: type: string pattern: ^pty_[0-9a-f]{32}$ description: Customer party ID attributes: type: object properties: name: type: string description: Customer name email: anyOf: - type: string - type: 'null' description: Email address createdAt: anyOf: - type: string format: date-time - type: 'null' description: When the customer was created delegation: type: object properties: id: type: string pattern: ^dlg_[0-9a-f]{32}$ description: Delegation ID status: type: string description: Delegation status permissions: type: array items: type: string description: Granted permissions createdAt: type: string format: date-time description: When the customer was connected required: - id - status - permissions - createdAt additionalProperties: false title: CustomerDelegation description: Delegation details agents: type: array items: type: object properties: id: type: string pattern: ^agt_[0-9a-f]{32}$ description: Agent ID name: anyOf: - type: string - type: 'null' description: Agent name status: type: string description: Connection status permissions: type: array items: type: string description: Permissions this agent holds limits: anyOf: - $ref: '#/components/schemas/TransactionLimits' - type: 'null' description: Transaction limits for this agent required: - id - name - status - permissions - limits additionalProperties: false title: CustomerConnectedAgent description: Connected agents required: - name - email - createdAt - delegation - agents additionalProperties: false title: CustomerActiveAttributes description: Customer attributes required: - type - id - attributes additionalProperties: false title: CustomerActiveResource description: An active customer. meta: type: object properties: pagination: type: object properties: hasMore: type: boolean nextCursor: anyOf: - type: string - type: 'null' required: - hasMore - nextCursor additionalProperties: false title: PaginationMeta required: - pagination additionalProperties: false required: - data - meta additionalProperties: false title: CustomerListResponse examples: default: summary: Default value: data: - id: pty_4a8c9823f39c42a5b817556766551112 type: customer attributes: name: Acme Co email: ops@acme.com createdAt: '2026-01-04T15:30:00.000Z' delegation: id: dlg_550e8400e29b41d4a716446655440000 status: ACTIVE permissions: - payments.read createdAt: '2026-01-10T12:00:00.000Z' agents: - id: agt_3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f name: Invoice Agent status: ACTIVE permissions: - payments.read limits: perTransaction: 100000 meta: pagination: hasMore: false nextCursor: null headers: X-RateLimit-Limit: description: Maximum requests allowed per window schema: type: integer X-RateLimit-Remaining: description: Requests remaining in current window schema: type: integer X-RateLimit-Reset: description: Unix timestamp when rate limit resets schema: type: integer '400': description: Validation Error content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: invalid_value detail: A request value is invalid. status: '400' meta: supportId: req_a1b2c3d4e5f6 '401': description: Unauthorized content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: unauthenticated detail: Authentication is required. status: '401' meta: supportId: req_a1b2c3d4e5f6 '403': description: Forbidden content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: forbidden detail: You do not have permission to perform this action. status: '403' meta: supportId: req_a1b2c3d4e5f6 '404': description: >- Not Found — returned when the resource does not exist, or when it exists but is not accessible to your account. The two cases are intentionally indistinguishable, so that resource IDs cannot be enumerated by probing. content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: not_found detail: The requested resource was not found. status: '404' meta: supportId: req_a1b2c3d4e5f6 '409': description: Conflict content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: conflict detail: The request conflicts with the current resource state. status: '409' meta: supportId: req_a1b2c3d4e5f6 '422': description: Validation Error content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: invalid_value detail: 'email: Invalid email address' status: '422' source: pointer: /data/attributes/email meta: supportId: req_a1b2c3d4e5f6 '428': description: Precondition Required content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: mfa_required detail: MFA verification required status: '428' meta: supportId: req_a1b2c3d4e5f6 '429': description: Too Many Requests content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: rate_limited detail: Too many requests. Please try again later. status: '429' meta: supportId: req_a1b2c3d4e5f6 headers: Retry-After: description: Seconds to wait before retrying schema: type: integer X-RateLimit-Limit: description: Maximum requests allowed per window schema: type: integer X-RateLimit-Remaining: description: Requests remaining in current window schema: type: integer X-RateLimit-Reset: description: Unix timestamp when rate limit resets schema: type: integer '500': description: Internal Server Error content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: server_error detail: Something went wrong. status: '500' meta: supportId: req_a1b2c3d4e5f6 '501': description: Not Implemented content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: not_implemented detail: This operation is not available. status: '501' meta: supportId: req_a1b2c3d4e5f6 '502': description: Bad Gateway content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: bad_gateway detail: >- We couldn't complete that request because one of Natural's services returned an unexpected response. Please try again. status: '502' meta: supportId: req_a1b2c3d4e5f6 '503': description: Service Unavailable content: application/json: schema: type: object properties: errors: type: array minItems: 1 items: type: object properties: code: type: string description: Stable lower-snake-case public error code detail: type: string description: Safe user-facing error detail status: type: string description: HTTP status code as a string source: type: object description: Location of the invalid request value properties: pointer: type: string parameter: type: string header: type: string additionalProperties: false meta: type: object description: >- Error metadata. Public responses include supportId by default and may include allowlisted provider recovery metadata. properties: supportId: type: string description: Request/support ID for troubleshooting connectionStatus: type: string enum: - login_required - disconnected description: >- External account connection state when the error is repairable by relinking provider: type: object properties: name: type: string enum: - plaid description: Provider that returned the underlying error errorCode: type: string description: Provider error code, when available errorType: type: string description: Provider error type, when available requestId: type: string description: Provider request ID for troubleshooting required: - name additionalProperties: false required: - supportId additionalProperties: false required: - code - detail - status - meta additionalProperties: false required: - errors additionalProperties: false examples: default: summary: Default value: errors: - code: service_unavailable detail: The service is temporarily unavailable. status: '503' meta: supportId: req_a1b2c3d4e5f6 security: - HTTPBearer: [] components: schemas: TransactionLimits: type: object properties: perTransaction: anyOf: - type: integer exclusiveMinimum: 0 - type: 'null' description: >- Positive per-transaction limit in cents. null means no per-transaction limit. additionalProperties: false title: TransactionLimits securitySchemes: HTTPBearer: type: http scheme: bearer ````