Ai compute x402

AI Compute

Run inference and GPU workloads without provider API keys or accounts. This skill wraps the Spraay x402 Gateway (gateway.spraay.app): OpenAI-compatible chat completions across 200+ models, decentralized inference via Bittensor, image generation, embeddings, and arbitrary GPU jobs. The agent pays per call in USDC over x402 — useful when you want a single wallet to cover compute across many providers.

When to use this skill

• Call an LLM (chat completions, function calling, vision) without holding an OpenAI/Anthropic key
• Run inference on decentralized Bittensor models (SN64 Chutes, SN19 Nineteen)
• Generate images or embeddings
• Submit a GPU job (image, video, audio, or LLM workloads via Replicate) and poll for results

OpenAI-compatible endpoints accept the standard request body, so existing SDKs work by pointing baseURL at the gateway path.

Setup

npm install x402-client
export EVM_PRIVATE_KEY=0x...   # wallet holding USDC on Base

import { createClient } from "x402-client";
const client = createClient({
  baseUrl: "https://gateway.spraay.app",
  privateKey: process.env.EVM_PRIVATE_KEY,
});

Endpoints

Inference (200+ models)

Method	Path	Price	Description
POST	/api/v1/chat/completions	$0.04	OpenAI-compatible chat completions. 200+ models via BlockRun + OpenRouter. Streaming, function calling, vision.
GET	/api/v1/models	$0.001	List available models with pricing and capability metadata.

Bittensor — decentralized AI

Method	Path	Price	Description
GET	/bittensor/v1/models	$0.001	List decentralized models. OpenAI /v1/models compatible.
POST	/bittensor/v1/chat/completions	$0.03	Chat completions via Bittensor SN64 (Chutes). 43+ models.
POST	/bittensor/v1/images/generations	$0.05	Image generation via Bittensor SN19 (Nineteen AI).
POST	/bittensor/v1/embeddings	$0.005	Text embeddings via Bittensor. OpenAI-compatible.

GPU workloads

Method	Path	Price	Description
POST	/api/v1/gpu/run	$0.06	Run GPU inference via Replicate — image, video, audio, LLM.
GET	/api/v1/gpu/status/:id	$0.005	Check status of a GPU prediction job by ID.
GET	/api/v1/gpu/models	FREE	Curated GPU model shortcuts (Flux, SDXL, Whisper, ...).

Examples

Chat completion (OpenAI-shaped body):

const out = await client.post("/api/v1/chat/completions", {
  model: "gpt-4o-mini",
  messages: [{ role: "user", content: "Summarize Base in one sentence." }],
});

Decentralized inference on Bittensor:

const out = await client.post("/bittensor/v1/chat/completions", {
  model: "chutes/...",
  messages: [{ role: "user", content: "..." }],
});

GPU image job, then poll:

const job = await client.post("/api/v1/gpu/run", { model: "flux", input: { prompt: "..." } });
const status = await client.get(`/api/v1/gpu/status/${job.id}`);

Notes

• Endpoints are OpenAI-compatible where noted — point any OpenAI SDK's baseURL at the gateway path.
• Full catalog: https://docs.spraay.app · Live traffic: https://live.spraay.app