{"uid":"cap_2veLn4HDVlHQ0X4_sIIA5","slug":"x402factory-ai-solanallmgpt4tc64d7mffrx5dnrz9-d6c8a9d6","name":"x402factory-ai Solana GPT-4 LLM Wrapper (4TC64D7MFFRX5DNRZ9)","description":"Solana GPT wrapper API using x402 payments. Default direct call: model gpt-5-mini, max_output_tokens=2000, fixed price 0.01 USDC for up to 1000 input tokens. For all other settings the price is computed per model as (input_tokens * input_price_per_million + max_output_tokens * output_price_per_million) / 1,000,000, with a minimum of 0.001 USDC and always rounded up to 6 decimals. Optional max_input_tokens lets you cap the input tokens used for pricing; if the message is longer than this cap the server returns an error instead of under-pricing. Optional action=create creates a custom agent with the given message as preprompt for 0.001 USDC (no OpenAI call), stores a base_price_usdc using (max_input_tokens_for_agent or 1000) + preprompt + max_output_tokens, and returns a custom_id. Optional action=list lists up to 100 recent custom agents for the paying wallet for 0.001 USDC without calling OpenAI. Custom agents can be called via POST /solana/llm/gpt with custom_id, or POST /solana/llm/gpt/{custom_id}. Each custom agent has a fixed price per call based on its stored preprompt, model, max_output_tokens and max_input_tokens; if the runtime message is longer than max_input_tokens the server returns an error. Custom LLM agent 4TC64D7MFFRX5DNRZ9 on Solana. Model gpt-5-mini, max_input_tokens=5000, max_output_tokens=5000. Preprompt preview (first 150 chars): \"Give me the 5 raw output from the most important new topics in this output also add the image link to every post :\". Pricing mode: agent-per-token. Prepaid price (x402) for this request: 0.017016 USDC. Estimated input tokens for pricing: 5038.","url":"https://x402factory.ai/solana/llm/gpt/4TC64D7MFFRX5DNRZ9","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},"accepted":[{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"}]},"paymentMethods":[{"uid":"pm_0bBaQ8lol5Nho4kjYzGe1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Pay-per-call GPT wrapper on Solana via x402 micropayments, supporting direct chat completions and custom agent creation with configurable models, token limits, and USDC pricing.","exampleAgentPrompt":"Use the x402factory Solana GPT endpoint to answer this question using gpt-4o with max 1500 output tokens: 'What are the main differences between proof-of-work and proof-of-stake blockchains?' and pay with my Solana USDC wallet.","exampleUseCases":null,"resultDescription":"Returns an LLM-generated text completion for the given message, or a custom_id when creating a new custom agent, or a list of up to 100 recent custom agents associated with the paying wallet. Includes token usage and computed USDC price charged.","failureModes":["Input tokens exceed max_input_tokens cap — server returns error instead of under-pricing","Insufficient USDC balance in wallet — x402 payment fails","Invalid model name provided — OpenAI API error returned","custom_id not found — error when calling a non-existent custom agent","Message too long for selected model context window — OpenAI error propagated","x402 payment header missing or malformed — 402 Payment Required response"],"whenToPreferThis":"Choose this endpoint when you need GPT-based text generation paid transparently via Solana USDC micropayments using the x402 protocol, especially when building agents that need per-call billing on Solana, creating custom preprompted agents, or listing previously created agents tied to a specific wallet.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:45:27.048Z","isFirstParty":false}