{"uid":"cap_UqXiKqJ4Ro8BWYLq0Krrn","slug":"quicksilverpro-api-credit-top-up-10-usdc-84b99487","name":"QuickSilverPro API Credit Top-Up ($10 USDC)","description":"One API key for 45+ AI models (GPT-6 Astra, Claude Fable 5.1, Gemini 3.8 Flash, Qwen 3.8, GLM 5.3, DeepSeek V4), OpenAI-compatible. Agents top up prepaid credit with USDC on Base via x402 and get a key back in the same HTTP round-trip.","url":"https://pay.quicksilverpro.io/x402/topup/10","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"properties":{}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"api_key":"sk-...","api_base":"https://api.quicksilverpro.io/v1","credit_usd":10}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"10","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$10/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Q1Ay_Zed07XC_thuVyghj","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"10","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Purchases $10 USD of API credit via crypto payment and returns an OpenAI-compatible API key and base URL for accessing 43 frontier AI models at up to 20% below list price.","exampleAgentPrompt":"Top up my QuickSilverPro account with $10 USDC so I get an API key I can use to call GPT-5, Claude, and Gemini through a single OpenAI-compatible endpoint.","exampleUseCases":[{"title":"Provisioning LLM access for a new project","prompt":"I need API access to frontier models like Claude and Gemini for my new automation project — can you top up a QuickSilverPro account with $10 USDC and give me the API key and base URL I'll need to plug into my code?"},{"title":"Switching from OpenAI to cheaper multi-model API","prompt":"I want to cut my AI API costs — top up $10 on QuickSilverPro so I can get an OpenAI-compatible key that also works with Claude and Gemini at a lower price than going direct."},{"title":"Crypto-funded AI credits without a credit card","prompt":"I don't want to put a credit card on file anywhere — can you use USDC to buy $10 of AI API credits on QuickSilverPro and return me an API key I can start using right away?"}],"resultDescription":"Returns a JSON object containing a provisioned API key (sk-... format), an OpenAI-compatible API base URL (https://api.quicksilverpro.io/v1), and the funded credit balance in USD ($10). The key can immediately be used with any OpenAI-SDK-compatible client to call any of the 43 supported frontier models.","failureModes":["Insufficient or failed USDC payment — payment not confirmed on-chain, resulting in no key issued","Invalid or malformed POST body — returns 400 error","Payment protocol (x402) not supported by calling client — integration failure","Duplicate or replayed payment transaction — may be rejected to prevent double-spend","Service unavailability — 5xx error with no key returned"],"whenToPreferThis":"Choose this endpoint when you need programmatic, crypto-native (USDC) access to a broad set of frontier LLMs (43 models including GPT, Claude, Gemini, Kimi K3) through a single OpenAI-compatible API, especially when avoiding credit card requirements or seeking below-list pricing. Prefer it over direct OpenAI/Anthropic/Google APIs when you want multi-provider flexibility under one key and one balance, or when your workflow uses the x402 payment protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:36:43.958Z","isFirstParty":false}