{ "info": { "_postman_id": "476b12af-2f0f-4e2b-93d2-2d346f29d159", "name": "Coinme Crypto-as-a-Service AuthLinkResult Transaction API", "description": "Coinme Crypto-as-a-Service (CaaS) API. Harvested from provider-published per-endpoint OpenAPI blocks at docs.coinme.com/reference. Modular crypto infrastructure: KYC onboarding, quotes, buy/sell orders, wallets, sends, cash on/off-ramp, payment methods, and webhooks.", "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json", "createdAt": "2026-07-28T01:26:18.000Z", "updatedAt": "2026-07-28T01:26:18.000Z", "lastUpdatedBy": "35240", "uid": "35240-476b12af-2f0f-4e2b-93d2-2d346f29d159" }, "item": [ { "name": "transaction", "item": [ { "name": "Initiate Buy/Sell Transaction with Quote", "id": "b4e539e6-ee70-44dd-a78d-c75c521f0639", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "auth": { "type": "apikey", "apikey": [ { "key": "key", "value": "x-api-key", "type": "string" }, { "key": "value", "value": "{{apiKey}}", "type": "string" }, { "key": "in", "value": "header", "type": "string" } ] }, "method": "POST", "header": [ { "description": "(Required) Partner User Agent ID (provided by Coinme)", "key": "User-Agent", "value": "" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "application/json" } ], "body": { "mode": "raw", "raw": "{\n \"customerId\": \"\",\n \"quoteId\": \"\",\n \"paymentMethodId\": \"\",\n \"partnerTransactionId\": \"\",\n \"externalCustodyCreditInfo\": {\n \"walletAddress\": \"\",\n \"blockchainMemo\": \"\"\n },\n \"sourceWalletAddress\": \"\",\n \"tags\": \"\",\n \"webSessionId\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/transaction", "host": [ "{{baseUrl}}" ], "path": [ "transaction" ] }, "description": "Creates a buy or sell transaction using a customerId and quoteId." }, "response": [ { "id": "11c15907-221f-4a6e-a8a2-c9a2d525ff14", "name": "200", "originalRequest": { "method": "POST", "header": [ { "description": "(Required) Partner User Agent ID (provided by Coinme)", "key": "User-Agent", "value": "" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "application/json" }, { "description": "Added as a part of security scheme: apikey", "key": "x-api-key", "value": "" } ], "body": { "mode": "raw", "raw": "{\n \"customerId\": \"\",\n \"quoteId\": \"\",\n \"paymentMethodId\": \"\",\n \"partnerTransactionId\": \"\",\n \"externalCustodyCreditInfo\": {\n \"walletAddress\": \"\",\n \"blockchainMemo\": \"\"\n },\n \"sourceWalletAddress\": \"\",\n \"tags\": \"\",\n \"webSessionId\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/transaction", "host": [ "{{baseUrl}}" ], "path": [ "transaction" ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "{\n \"data\": {\n \"partnerTransactionId\": \"\",\n \"creditCurrencyUnitPrice\": \"\",\n \"creditCurrencyUnitPriceCode\": \"\",\n \"debitCurrencyUnitPrice\": \"\",\n \"debitCurrencyUnitPriceCode\": \"\",\n \"creditCurrencyAmount\": \"\",\n \"creditCurrencyCode\": \"\",\n \"debitCurrencyAmount\": \"\",\n \"debitCurrencyCode\": \"\",\n \"totalFees\": \"\",\n \"feeCurrencyCode\": \"\",\n \"feesMap\": {\n \"exchangeFee\": \"\",\n \"processingFee\": \"\",\n \"blockchainFee\": \"\"\n },\n \"spreadAmount\": \"\",\n \"spreadCurrencyCode\": \"\"\n },\n \"errorResponse\": {}\n}", "createdAt": "2026-07-28T01:26:19.000Z", "updatedAt": "2026-07-28T01:26:19.000Z", "uid": "35240-11c15907-221f-4a6e-a8a2-c9a2d525ff14" }, { "id": "cbd58940-bcb6-436e-be88-ad04f19b3756", "name": "400", "originalRequest": { "method": "POST", "header": [ { "description": "(Required) Partner User Agent ID (provided by Coinme)", "key": "User-Agent", "value": "" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "application/json" }, { "description": "Added as a part of security scheme: apikey", "key": "x-api-key", "value": "" } ], "body": { "mode": "raw", "raw": "{\n \"customerId\": \"\",\n \"quoteId\": \"\",\n \"paymentMethodId\": \"\",\n \"partnerTransactionId\": \"\",\n \"externalCustodyCreditInfo\": {\n \"walletAddress\": \"\",\n \"blockchainMemo\": \"\"\n },\n \"sourceWalletAddress\": \"\",\n \"tags\": \"\",\n \"webSessionId\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/transaction", "host": [ "{{baseUrl}}" ], "path": [ "transaction" ] } }, "status": "Bad Request", "code": 400, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "{\n \"examples\": {\n \"Result\": {\n \"value\": \"{\\n \\\"data\\\": null,\\n \\\"errorResponse\\\": {\\n \\\"httpStatus\\\":\\\"200\\\",\\n \\\"timestamp\\\":\\\"2022-02-01T18:59:28.297Z\\\",//UTC\\n \\\"path\\\":\\\"/services/transaction POST\\\",\\n \\\"errorData\\\": [\\n {\\n \\\"errorCode\\\":\\\"123-123-123-123\\\",//The error code is just a sample showing the structure of the error code.\\n \\\"message\\\":\\\"Invalid QuoteId\\\"\\n }\\n ]\\n}\"\n }\n }\n}", "createdAt": "2026-07-28T01:26:19.000Z", "updatedAt": "2026-07-28T01:26:19.000Z", "uid": "35240-cbd58940-bcb6-436e-be88-ad04f19b3756" }, { "id": "e88ca720-653f-4358-9620-d82211ea30bc", "name": "401", "originalRequest": { "method": "POST", "header": [ { "description": "(Required) Partner User Agent ID (provided by Coinme)", "key": "User-Agent", "value": "" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "text/plain" }, { "description": "Added as a part of security scheme: apikey", "key": "x-api-key", "value": "" } ], "body": { "mode": "raw", "raw": "{\n \"customerId\": \"\",\n \"quoteId\": \"\",\n \"paymentMethodId\": \"\",\n \"partnerTransactionId\": \"\",\n \"externalCustodyCreditInfo\": {\n \"walletAddress\": \"\",\n \"blockchainMemo\": \"\"\n },\n \"sourceWalletAddress\": \"\",\n \"tags\": \"\",\n \"webSessionId\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/transaction", "host": [ "{{baseUrl}}" ], "path": [ "transaction" ] } }, "status": "Unauthorized", "code": 401, "_postman_previewlanguage": "text", "header": [ { "key": "Content-Type", "value": "text/plain" } ], "cookie": [], "responseTime": null, "body": "{\n \"examples\": {\n \"Result\": {\n \"value\": \"\"\n }\n }\n}", "createdAt": "2026-07-28T01:26:19.000Z", "updatedAt": "2026-07-28T01:26:19.000Z", "uid": "35240-e88ca720-653f-4358-9620-d82211ea30bc" }, { "id": "96f13a81-1c78-4f2e-9bd2-2719ec7339f7", "name": "500", "originalRequest": { "method": "POST", "header": [ { "description": "(Required) Partner User Agent ID (provided by Coinme)", "key": "User-Agent", "value": "" }, { "key": "Content-Type", "value": "application/json" }, { "key": "Accept", "value": "text/plain" }, { "description": "Added as a part of security scheme: apikey", "key": "x-api-key", "value": "" } ], "body": { "mode": "raw", "raw": "{\n \"customerId\": \"\",\n \"quoteId\": \"\",\n \"paymentMethodId\": \"\",\n \"partnerTransactionId\": \"\",\n \"externalCustodyCreditInfo\": {\n \"walletAddress\": \"\",\n \"blockchainMemo\": \"\"\n },\n \"sourceWalletAddress\": \"\",\n \"tags\": \"\",\n \"webSessionId\": \"\"\n}", "options": { "raw": { "headerFamily": "json", "language": "json" } } }, "url": { "raw": "{{baseUrl}}/transaction", "host": [ "{{baseUrl}}" ], "path": [ "transaction" ] } }, "status": "Internal Server Error", "code": 500, "_postman_previewlanguage": "text", "header": [ { "key": "Content-Type", "value": "text/plain" } ], "cookie": [], "responseTime": null, "body": "{\n \"examples\": {\n \"Result\": {\n \"value\": \"\"\n }\n }\n}", "createdAt": "2026-07-28T01:26:19.000Z", "updatedAt": "2026-07-28T01:26:19.000Z", "uid": "35240-96f13a81-1c78-4f2e-9bd2-2719ec7339f7" } ], "createdAt": "2026-07-28T01:26:19.000Z", "updatedAt": "2026-07-28T01:26:19.000Z", "uid": "35240-b4e539e6-ee70-44dd-a78d-c75c521f0639" } ], "id": "f0f7fcac-077d-4ddd-8678-bf3b7d58dfca", "createdAt": "2026-07-28T01:26:19.000Z", "updatedAt": "2026-07-28T01:26:19.000Z", "uid": "35240-f0f7fcac-077d-4ddd-8678-bf3b7d58dfca" } ], "variable": [ { "key": "baseUrl", "value": "https://caas.coinme.com/services" } ] }