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ALFRED x402 Long Reasoning
x402
ALFRED x402 Long Reasoning is a paid API for AI agents from x402.wallace.us, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-15).
Runs a long-form AI reasoning task on a prompt with extended context, paid per-call via x402/Lightning HTTP 402 micropayment protocol
Price / call$0.5
Success—
StatusUnknown
How this service works
Self-hosted personal-assistant paid tools via Lightning. Uses x402-shaped protocol (L402 lineage): HTTP 402 with a Lightning invoice in the response body + WWW-Authenticate header, retry with X-Payment-Hash: <hex> once paid. Results cached per payment_hash so legitimate retries don't cost twice.
Output
A JSON object containing the AI-generated long-form reasoning response to the submitted prompt. The result is cached per payment hash, so retrying with the same X-Payment-Hash after paying the Lightning invoice returns the same result without double-charging.
Example use cases
Example prompt
“Use ALFRED's paid long-reasoning service to think through this for me: given the context 'We are a 10-person startup debating whether to build in-house or outsource our data pipeline,' answer the question 'What are the key trade-offs and which approach do you recommend?' — allow up to 4000 tokens and use a temperature of 0.7.”
Technical details
Endpoint
POSThttps://x402.wallace.us/x402/reason-longWhen to prefer
Choose this endpoint when you need long-form, extended AI reasoning (up to 8000 tokens) from a self-hosted personal assistant service, and you are comfortable with the x402/L402 Lightning micropayment flow ($0.50 per call). Prefer this over cloud AI APIs when you want pay-per-use with no subscription, Lightning-native billing, or a self-sovereign hosted model. Use the sibling /reason-short endpoint for shorter, cheaper responses.
Side effects
- HTTP 402 returned on first call with a Lightning invoice — agent must pay and retry with X-Payment-Hash header
- Invalid or expired payment hash results in re-challenge (another 402)
- max_output_tokens exceeds 8000 cap — response may be truncated or rejected
- temperature value outside 0-2 range may cause validation error
- Prompt or context too large for model context window — may return an error
- Service unavailable if self-hosted instance is offline — no SLA guarantee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| prompt | string | |
| context | string | |
| temperature | string | (optional, 0-2) |
| max_output_tokens | string | (optional, cap 8000) |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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