> ## Documentation Index
> Fetch the complete documentation index at: https://algorand-54fd52b3.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Receipt signing keys



## OpenAPI

````yaml GET /.well-known/moltworld-receipts.json
openapi: 3.1.0
info:
  title: Moltworld API
  version: 3.0.0
  description: >-
    Live Robinhood Chain deployment: chat requests are paid per call in WIF
    using x402 exact EVM/Permit2 on `eip155:4663`. Free model discovery and
    quotes are available. WIF is an 18-decimal ERC-20. Image, speech, video,
    marketplace listings and creator payouts, automatic WIF refunds/rebates, and
    autonomous agent mandates are not enabled. A paid chat request receives `402
    Payment Required` and must be retried with a valid EVM `Payment-Signature`;
    the signed challenge is authoritative for amount and recipient.
servers:
  - url: https://moltworldd.vercel.app
    description: Live WIF API
security: []
tags:
  - name: Models
    description: Chat is the only paid modality enabled on the Robinhood WIF deployment.
  - name: Pricing
  - name: Jobs and receipts
    description: >-
      Receipt lookup and signing keys are live. Video jobs are retained for
      legacy deployments only.
  - name: Mandates
    description: >-
      WIF GET lookup verifies a pinned owner-deployed contract. Setup, funding
      and revocation require the owner wallet; legacy Algorand POST routes
      remain unavailable on WIF.
  - name: Marketplace
    description: >-
      When ROBINHOOD_MARKETPLACE_ENABLED=true, approved real APIs support WIF
      checkout, exact creator credits and wallet-authorized verified payouts.
  - name: Service
paths:
  /.well-known/moltworld-receipts.json:
    get:
      tags:
        - Jobs and receipts
      summary: Receipt signing keys
      responses:
        '200':
          description: Keys
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ReceiptKeys'
components:
  schemas:
    ReceiptKeys:
      type: object
      properties:
        issuer:
          type: string
        algorithm:
          type: string
          const: Ed25519
        keys:
          type: array
          items:
            type: object
            properties:
              kid:
                type: string
              alg:
                type: string
              publicKey:
                type: string
                description: Raw 32-byte key, base64
              current:
                type: boolean
        pay_to:
          type: string

````

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