> ## Documentation Index > Fetch the complete documentation index at: https://agora402.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Recent receipts > Free. The most recent settled payments this process has seen, newest first, each with its HashScan link and, when the seller publishes to HCS, the topic sequence number of the receipt message. This ring is in memory and bounded by uptime; the permanent record is the receipts topic named in the manifest, which ReceiptLedger.audit() cross-checks against the mirror node. ## OpenAPI ````yaml /openapi.yaml get /receipts openapi: 3.1.0 info: title: Agora402 seller API version: 1.0.0 description: >- HTTP API served by every Agora402 seller: free discovery documents, a free quote endpoint, and paid endpoints gated by x402 and settled on Hedera through the Blocky402 facilitator. Typical agent flow: getManifest (what is sold, at what price, paid to which account) -> requestQuote (lock a signed price, counter below list if you like) -> call the paid endpoint with the quoteId. The first call answers 402 with a PAYMENT-REQUIRED header; the retry carries PAYMENT-SIGNATURE; the response carries PAYMENT-RESPONSE with the Hedera transaction id. Then read listReceipts or the seller's HCS receipts topic to audit what was charged. All amounts are decimal strings in atomic units of the asset (tinybars for HBAR, 8 decimals); timestamps are ISO 8601 unless stated; quote expiry is unix seconds. servers: - url: http://localhost:4402 description: Local services seller (npm run dev) - url: http://localhost:4404 description: Local auditor (npm run dev) security: [] tags: - name: Discovery description: Free documents that describe the seller. Read these before paying anyone. - name: Negotiation description: Free, signed, time-limited price quotes. - name: Paid services description: x402-gated endpoints. Every call is a Hedera micropayment. - name: Trust description: Paid audits of other sellers, attested on the HCS audit topic. - name: Receipts description: What this seller has been paid for. paths: /receipts: get: tags: - Receipts summary: Recent receipts description: >- Free. The most recent settled payments this process has seen, newest first, each with its HashScan link and, when the seller publishes to HCS, the topic sequence number of the receipt message. This ring is in memory and bounded by uptime; the permanent record is the receipts topic named in the manifest, which ReceiptLedger.audit() cross-checks against the mirror node. operationId: listReceipts parameters: - name: limit in: query required: false schema: type: integer minimum: 1 maximum: 200 default: 50 description: Number of receipts to return, capped at 200 responses: '200': description: Receipts content: application/json: schema: $ref: '#/components/schemas/ReceiptsResponse' example: receipts: - receipt: v: 1 type: receipt seller: >- uaid:aid:2NEpo7TZRRrLZSi2U;uid=agora-demo-seller;registry=agora402;proto=a2a;nativeId=hedera:testnet:0.0.5001234;domain=localhost:4402 transactionId: 0.0.4009876@1789560131.552341000 network: hedera:testnet payer: 0.0.4009876 payTo: 0.0.5001234 asset: 0.0.0 amount: '60000' resource: /v1/infer quoteId: q_5f1c2a9b7d3e4c6a8b0f1e2d usage: provider: groq model: llama-3.3-70b-versatile inputTokens: 21 outputTokens: 27 responseHash: >- 6a1f0c3e9b2d4a7c8e5f1b0d2c3a4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d issuedAt: '2026-09-13T12:35:33.910Z' hashscanTxUrl: >- https://hashscan.io/testnet/transaction/0.0.4009876@1789560131.552341000 hcs: transactionId: 0.0.5001234@1789560134.001200000 sequenceNumber: 118 topicUrl: https://hashscan.io/testnet/topic/0.0.6009999 components: schemas: ReceiptsResponse: type: object required: - receipts properties: receipts: type: array items: $ref: '#/components/schemas/StoredReceipt' StoredReceipt: type: object required: - receipt - hashscanTxUrl properties: receipt: $ref: '#/components/schemas/Receipt' hashscanTxUrl: type: string format: uri hcs: description: >- HCS publication result, filled in asynchronously; absent while pending or when receipts stay in memory oneOf: - type: object title: published required: - transactionId - sequenceNumber - topicUrl properties: transactionId: type: string sequenceNumber: type: integer topicUrl: type: string format: uri - type: object title: failed required: - error properties: error: type: string Receipt: type: object description: Written to the receipts topic after every settled payment required: - v - type - seller - transactionId - network - payer - payTo - asset - amount - resource - usage - issuedAt properties: v: type: integer enum: - 1 type: type: string enum: - receipt seller: $ref: '#/components/schemas/Uaid' transactionId: type: string description: Hedera transaction id of the settlement, 0.0.x@seconds.nanos network: $ref: '#/components/schemas/Network' payer: $ref: '#/components/schemas/HederaEntityId' description: Buyer account debited payTo: $ref: '#/components/schemas/HederaEntityId' description: Seller account credited asset: $ref: '#/components/schemas/HederaEntityId' amount: $ref: '#/components/schemas/Amount' resource: type: string description: Path that was paid for quoteId: type: string usage: type: object additionalProperties: true description: Metering evidence copied from the x-agora-usage response header responseHash: type: string description: sha256 hex of the response body delivered issuedAt: type: string format: date-time Uaid: type: string pattern: '^uaid:' description: HCS-14 universal agent id example: >- uaid:aid:2NEpo7TZRRrLZSi2U;uid=agora-demo-seller;registry=agora402;proto=a2a;nativeId=hedera:testnet:0.0.5001234;domain=localhost:4402 Network: type: string enum: - hedera:testnet - hedera:mainnet description: CAIP-2 network id HederaEntityId: type: string pattern: ^\d+\.\d+\.\d+$ description: Hedera entity id, shard.realm.num example: 0.0.5001234 Amount: type: string pattern: ^\d+$ description: >- Atomic units of the asset as a decimal string (tinybars for HBAR). Never a float. example: '60000' ````