# Solcleus Verified Computation Burst

> Solcleus Verified Computation Burst is a paid API for AI agents from solcleus.com, paid per call via x402, $0.004/call, status down (last checked 2026-10-13).

Submits a question or decision to an LLM with verifiable consistency checking, charging only when the answer passes verification.

## Facts

- Endpoint: GET https://solcleus.com/v1/burst?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: down
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solcleus-verified-computation-burst-b18343ef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TQOlbq-Kbd6wH9VRI46ew

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability solcleus-verified-computation-burst-b18343ef
```

Example prompt: Use Solcleus to resolve this question with best_of_n sampling across 5 runs and self_consistency verification: 'What is the capital city most recently added to the UN member list?' — extract the answer as a regex match on ([A-Za-z ]+) and only charge me if it passes.

## When to prefer this

Use Solcleus when you need a confident, verifiable LLM answer and want contingency pricing — you only pay for results that pass a verification gate. Ideal when the question has a checkable correct answer, when auditability (Ed25519 signature, on-chain tx) matters, or when you want to reuse a previously computed result at a fraction of original cost. Prefer over standard LLM APIs when you need pay-on-success semantics or cryptographic proof of the answer.

## Known failure modes

- not_verified status returned when self-consistency or judge check fails — no charge incurred
- payment_required when wallet lacks sufficient USDC budget
- budget_exceeded when the call would exceed configured spending limit
- model mismatch if a custom model string doesn't match the BYOK key provided
- invalid answer_key pattern causes extraction failure and unverified status

## How this service works

Solcleus accepts a computational job only when its answer can be verifiably checked, and charges only if it's solved to spec. Every result is Ed25519-signed and reusable — the next buyer pays a fraction of the original compute.

## Output

Returns a verified answer string, a status field (ok, not_verified, payment_required, or budget_exceeded), a boolean indicating whether charge occurred, the on-chain settlement tx hash if charged, the USD fee deducted, and the remaining wallet budget — all only charged when the verifier passes.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "answer": {
   "type": "string",
   "description": "The verified answer (present when status=ok)."
  },
  "status": {
   "type": "string",
   "description": "ok | not_verified | payment_required | budget_exceeded"
  },
  "charged": {
   "type": "boolean",
   "description": "True only if verified; you pay nothing otherwise."
  },
  "verified": {
   "type": "boolean",
   "description": "Whether the verifier passed (gates the charge)."
  },
  "settle_tx": {
   "type": "string",
   "description": "On-chain settlement tx hash when charged."
  },
  "amount_usd": {
   "type": "number",
   "description": "Service fee charged on a verified burst."
  },
  "remaining_budget_usd": {
   "type": "number",
   "description": "Wallet budget left after this call."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solcleus-verified-computation-burst-b18343ef/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from solcleus.com](https://www.zero.xyz/host/solcleus.com/llms.txt)