{"uid":"cap_k-7TWSOEOCGil3dwSOA7r","slug":"xona-prova-verified-inference-tee-attested-chat-completions-614fdc26","name":"Xona Prova Verified Inference (TEE-Attested Chat Completions)","description":"Verified inference (Prova). OpenAI-compatible chat completions run inside a TEE (NVIDIA + Intel), hardware-attested, and anchored on Solana — every response returns an on-chain proof + Solscan link. Select a model via the body `model` field; price varies by tier (standard/premium/flagship).","url":"https://api.xona-agent.com/llm/prova?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"model":{"type":"string","default":"deepseek-v4-flash","description":"Model id (price varies by tier). One of: deepseek-v4-flash, gpt-oss-20b, qwen-2.5-7b, qwen3.5-27b, qwen3.6-27b, qwen3-vl-30b, gpt-oss-120b, gemma-4-31b, qwen3.5-122b, kimi-k2.6, glm-5.2, deepseek-v4-pro"},"prompt":{"type":"string","description":"The user prompt (or use messages)"},"messages":{"type":"array","items":{"type":"string"},"description":"Optional OpenAI-style messages array (overrides prompt/system_prompt)"},"max_tokens":{"type":"number","description":"Optional cap on output tokens"},"temperature":{"type":"number","description":"Optional sampling temperature"},"system_prompt":{"type":"string","description":"Optional system prompt"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0014","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.0014/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0014","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0014","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_e953HIZoL8gKm6fC8e4Lr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0014","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs LLM chat completions inside a Trusted Execution Environment (TEE) with hardware attestation and anchors each response as an on-chain proof on Solana, returning a Solscan link.","exampleAgentPrompt":"Using the Prova verified inference endpoint, run deepseek-v4-pro with a temperature of 0.7 and max 512 tokens to answer: 'Summarize the key risks of smart contract auditing' — I need the Solana on-chain proof link alongside the response.","exampleUseCases":null,"resultDescription":"An OpenAI-compatible chat completion response plus a hardware attestation proof and a Solscan link confirming the response was anchored on Solana, providing cryptographic verifiability of the inference.","failureModes":["Invalid or unsupported model ID returns 400 with list of valid models","Payment failure or insufficient USDC returns 402 Payment Required","TEE attestation failure returns 500 with attestation error detail","Prompt or messages missing returns 422 validation error","Token limit exceeded returns 400 with max_tokens constraint","Model tier unavailable returns 503 with retry guidance"],"whenToPreferThis":"Choose this endpoint when verifiability, auditability, or tamper-proof proof of AI inference matters — e.g. compliance workflows, AI-generated legal or financial content, or any use case where you need to prove the exact model and output via a Solana on-chain record. Not needed for standard LLM calls where attestation is irrelevant.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T18:43:33.486Z","isFirstParty":false,"canonicalSlug":"xona-prova-verified-inference-tee-attested-chat-completions-614fdc26"}