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fold · x402 — Claude Opus 4.8 LLM via x402
x402
fold · x402 — Claude Opus 4.8 LLM via x402 is a paid API for AI agents from x402.fold.computer, paid per call via x402, $2/call, status down (last checked 2026-09-15).
Serves Claude Opus 4.8 completions with market intelligence context for onchain agents, paid per-call via x402 micropayment protocol
Price / call$2
Success—
StatusDown
How this service works
Machine-readable market intelligence for onchain agents, served over x402.
Output
Returns an OpenAI-format chat completion object containing the model's response text, plus x402 payment metadata showing the cost of the call, all wrapped in a status/data envelope.
Example use cases
Example prompt
“Ask Claude Opus 4.8 through fold.computer's x402 endpoint: 'What are the current trends in onchain DEX liquidity?' — pay with USDC per call and get a structured completion back including cost info.”
Technical details
Endpoint
POSThttps://x402.fold.computer/llm/claude-opus-4-8When to prefer
Choose this endpoint when your onchain agent needs to pay for LLM inference using USDC micropayments via the x402 protocol without pre-purchasing API credits, and specifically wants Claude Opus 4.8 quality reasoning. Ideal for autonomous agents that must account for per-inference costs transparently on-chain.
Side effects
- Payment failure — insufficient USDC balance or invalid x402 payment header returns 402 Payment Required
- Missing messages array — required field omitted returns validation error
- Token limit exceeded — max_tokens set beyond model context window
- Rate limiting — too many concurrent calls may be throttled
- Model unavailability — Claude Opus 4.8 service disruption returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| messagesrequired | array | OpenAI-format chat messages |
| max_tokens | number | |
| temperature | number |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | OpenAI-format completion + x402 cost info |
| statusrequired | string |
Tags
x402
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