Nexi

Nexi API

Nexi API as documented publicly: 22 operations. Contract generated from the documentation by API Evangelist (2026-10-15); not the provider's own document.

GitHub OpenAPI

Operations 22

GET /api/v1/build/{buildid} XPay Build APIs #
POST /api/v1/build/{buildid} XPay Build APIs #
GET /api/v1/orders XPay Payment APIs #
GET /api/v1/orders/{orderid} XPay Payment APIs #
POST /api/v1/orders/{orderid} XPay Build APIs #
POST /api/v1/orders/{orderid}/mit XPay CEE API reference #
GET /contract/{contractid} XPay CEE API reference #
GET /contracts/customers/{customerid} XPay CEE API reference #
POST /contracts/{contractid}/deactivation XPay CEE API reference #
GET /operations XPay CEE API reference #
GET /operations/{operationid} XPay CEE API reference #
GET /operations/{operationid}/actions XPay CEE API reference #
POST /operations/{operationid}/{id} XPay CEE API reference #
GET /orders XPay CEE API reference #
POST /orders/3steps/{3stepId} XPay CEE API reference #
POST /orders/paybylink/{linkid}/renewals XPay CEE API reference #
GET /orders/{orderid} XPay CEE API reference #
POST /orders/{orderid} XPay Build APIs #
POST /paybylink/{linkid}/cancels XPay CEE API reference #
GET /payment_methods XPay CEE API reference #
POST /{merchantNotificationUrl} XPay Notification APIs #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/nexi/refs/heads/main/openapi/_ae-authored/nexi-openapi-generated.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/nexi/refs/heads/main/json-schema/nexi-get-api-v1-orders-response-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/nexi/refs/heads/main/json-schema/nexi-get-api-v1-orders-orderid-response-schema.json

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/nexi:nexi-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

nexi-openapi-generated.yml Raw ↑ 
openapi: 3.1.0
info:
  title: Nexi API
  version: '2026-10-15'
  description: 'GENERATED FROM DOCUMENTATION by API Evangelist on 2026-10-15: 22 operation(s) read from 3 public documentation page(s) (each operation
    names its page in x-source). This is not the provider''s published contract; Nexi has published no machine-readable contract that the pipeline
    could find. Engine: local.'
  x-evidence-tiers:
    code-example: 0
    documentation: 22
    pages-with-code: 0
    pages-read: 3
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-10-15'
  x-generator: generate-contract-from-docs.py
  x-engine: local
  x-sources:
  - https://developer.nexigroup.com/xpaycee/en-EU/api
  - https://developer.nexigroup.com/xpaycee/en-EU/api/build-api-v1
  - https://developer.nexigroup.com/xpaycee/en-EU/api/payment-api-v1
servers:
- url: https://xpaysandbox.nexigroup.com/api/phoenix-0.0/psp
paths:
  /api/v1/build/{buildid}:
    get:
      operationId: get_api_v1_build_buildid
      tags:
      - Api
      summary: XPay Build APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: buildid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
        collapsed_from: 2 example path(s) differing only at buildId
    post:
      operationId: post_api_v1_build_buildid
      tags:
      - Api
      summary: XPay Build APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: buildid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
        collapsed_from: 3 example path(s) differing only at buildId
  /api/v1/orders:
    get:
      operationId: get_api_v1_orders
      tags:
      - Api
      summary: XPay Payment APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api/payment-api-v1
      parameters:
      - name: X-API-KEY
        in: header
        required: true
        schema:
          type: string
      - name: Correlation-Id
        in: header
        required: true
        schema:
          type: string
        description: UUID v4
      - name: amountType
        in: query
        required: false
        schema:
          type: string
      - name: customField
        in: query
        required: false
        schema:
          type: string
      - name: fromTime
        in: query
        required: false
        schema:
          type: string
      - name: maxAmount
        in: query
        required: false
        schema:
          type: string
      - name: maxRecords
        in: query
        required: false
        schema:
          type: integer
      - name: minAmount
        in: query
        required: false
        schema:
          type: string
      - name: orderId
        in: query
        required: false
        schema:
          type: string
      - name: orderState
        in: query
        required: false
        schema:
          type: string
      - name: toTime
        in: query
        required: false
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetApiV1OrdersResponse'
      x-evidence:
        kind: documentation
  /api/v1/orders/{orderid}:
    get:
      operationId: get_api_v1_orders_orderid
      tags:
      - Api
      summary: XPay Payment APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api/payment-api-v1
      parameters:
      - name: orderid
        in: path
        required: true
        schema:
          type: string
      - name: X-API-KEY
        in: header
        required: true
        schema:
          type: string
      - name: Correlation-Id
        in: header
        required: true
        schema:
          type: string
        description: UUID v4
      responses:
        '200':
          description: Success (status as documented)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetApiV1OrdersOrderidResponse'
      x-evidence:
        kind: documentation
    post:
      operationId: post_api_v1_orders_orderid
      tags:
      - Api
      summary: XPay Build APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: orderid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
        collapsed_from: 3 example path(s) differing only at orderId
  /api/v1/orders/{orderid}/mit:
    post:
      operationId: post_api_v1_orders_orderid_mit
      tags:
      - Api
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: orderid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /contract/{contractid}:
    get:
      operationId: get_contract_contractid
      tags:
      - Contract
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: contractid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /contracts/customers/{customerid}:
    get:
      operationId: get_contracts_customers_customerid
      tags:
      - Contracts
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: customerid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /contracts/{contractid}/deactivation:
    post:
      operationId: post_contracts_contractid_deactivation
      tags:
      - Contracts
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: contractid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /operations:
    get:
      operationId: get_operations
      tags:
      - Operations
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /operations/{operationid}:
    get:
      operationId: get_operations_operationid
      tags:
      - Operations
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: operationid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /operations/{operationid}/actions:
    get:
      operationId: get_operations_operationid_actions
      tags:
      - Operations
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: operationid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /operations/{operationid}/{id}:
    post:
      operationId: post_operations_operationid_id
      tags:
      - Operations
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: operationid
        in: path
        required: true
        schema:
          type: string
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
        collapsed_from: 2 example path(s) differing only at id
  /orders:
    get:
      operationId: get_orders
      tags:
      - Orders
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /orders/3steps/{3stepId}:
    post:
      operationId: post_orders_3steps_3stepId
      tags:
      - Orders
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: 3stepId
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
        collapsed_from: 3 example path(s) differing only at 3stepId
  /orders/paybylink/{linkid}:
    get:
      operationId: get_orders_paybylink_linkid
      tags:
      - Orders
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: linkid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /orders/paybylink/{linkid}/renewals:
    post:
      operationId: post_orders_paybylink_linkid_renewals
      tags:
      - Orders
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: linkid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /orders/{orderid}:
    get:
      operationId: get_orders_orderid
      tags:
      - Orders
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: orderid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
    post:
      operationId: post_orders_orderid
      tags:
      - Orders
      summary: XPay Build APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: orderid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
        collapsed_from: 5 example path(s) differing only at orderId
  /paybylink/{linkid}/cancels:
    post:
      operationId: post_paybylink_linkid_cancels
      tags:
      - Paybylink
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: linkid
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /payment_methods:
    get:
      operationId: get_payment_methods
      tags:
      - Payment Methods
      summary: XPay CEE API reference
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
  /{merchantNotificationUrl}:
    post:
      operationId: post_merchantNotificationUrl
      tags:
      - Api
      summary: XPay Notification APIs
      x-source: https://developer.nexigroup.com/xpaycee/en-EU/api
      parameters:
      - name: merchantNotificationUrl
        in: path
        required: true
        schema:
          type: string
      responses:
        '201':
          description: Success (status as documented)
      x-evidence:
        kind: documentation
components:
  schemas:
    GetApiV1OrdersResponse:
      type: object
      properties:
        orders:
          type: array
          description: list of orders
    GetApiV1OrdersOrderidResponse:
      type: object
      properties:
        order:
          type: object
          description: order details
tags:
- name: Api
- name: Contract
- name: Contracts
- name: Operations
- name: Orders
- name: Paybylink
- name: Payment Methods