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

# Get a payment-link spec

> Returns the machine-readable agentic spec for a payment link. Public, no auth.



## OpenAPI

````yaml /openapi.yaml get /public/payment-links/{slug}/spec
openapi: 3.0.3
info:
  title: ArcenPay API
  description: >
    The ArcenPay REST API powers subscription billing, entitlements, usage
    metering,

    payment links, checkout sessions, and autonomous agent payments across EVM
    (BOT Chain,

    Base, Arc, Sepolia) and Stellar.


    Every endpoint that accepts an API key supports the `Authorization: Bearer
    <key>` header.

    Key prefixes: `sk_…` (secret), `rk_…` (restricted), `pk_…` (publishable,
    read-only),

    `api_…` (legacy). Company-scoped customer endpoints accept an embed access
    token

    (`arc_tok_…` or a signed JWT from `identify()`). See the Authentication page
    for the

    full endpoint auth matrix.


    Manage catalog, environments, invoices, webhooks, feature flags, and agent
    configuration

    from the *dashboard* — those are not part of the developer-facing API
    reference.
  version: 1.0.0
servers:
  - url: https://api.arcenpay.com/api/v1
    description: Production
  - url: http://localhost:3300/api/v1
    description: Local development
security:
  - bearerAuth: []
tags:
  - name: Credentials
    description: >-
      API keys, secret/publishable/restricted credentials, and short-lived
      tokens.
  - name: Companies
    description: Customer organizations, identity synchronization, and feature overrides.
  - name: Users
    description: Customer end-users associated with company organizations.
  - name: Events
    description: Ingest customer usage events and identification signals.
  - name: Access control
    description: >-
      Real-time entitlement checks, feature flags, and metered credit
      consumption.
  - name: Subscriptions
    description: >-
      On-chain subscription activation, self-serve plan switching, proration,
      and cancellation.
  - name: Checkout sessions
    description: Hosted checkout session lifecycle and status lookup.
  - name: Payment links
    description: Crypto payment links and dynamic payment URLs.
  - name: Autonomous agents
    description: >-
      Agent permissions, budget checking, on-chain funding, and auto-topup
      dispatch.
  - name: Mandates
    description: Recurring billing authorizations and mandate lifecycle.
  - name: Coupons
    description: Discount code validation and proration quoting.
  - name: zkTLS proofs
    description: Zero-knowledge TLS proofs verification via Reclaim Protocol.
  - name: Public
    description: Unauthenticated payment link specifications and checkout sessions.
  - name: Escrow
    description: >-
      Autonomous commit-reveal escrow reservations, release settlement, and
      dispute handling.
  - name: Features
    description: Feature catalog definitions, feature types, and linked plan entitlements.
paths:
  /public/payment-links/{slug}/spec:
    get:
      tags:
        - Public
      summary: Get a payment-link spec
      description: >-
        Returns the machine-readable agentic spec for a payment link. Public, no
        auth.
      parameters:
        - name: slug
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Agentic payment link spec
          content:
            application/json:
              schema:
                type: object
                properties:
                  spec:
                    type: object
                    properties:
                      type:
                        type: string
                      version:
                        type: string
                      id:
                        type: string
                      slug:
                        type: string
                      name:
                        type: string
                      status:
                        type: string
                      isAgentic:
                        type: boolean
                      amount:
                        type: string
                      amountAtomic:
                        type: string
                      currency:
                        type: string
                      acceptedToken:
                        type: string
                      chainId:
                        type: number
                      recipientWallet:
                        type: string
                      sessionUrl:
                        type: string
                      confirmUrl:
                        type: string
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: sk_… / rk_… / pk_… / api_…

````