# KG-NINJA Agent Error Fix Receipt

KG-NINJA provides a small paid x402 endpoint for AI agents and developers.

Paid endpoints:
POST /fix-error
POST /summarize-url
POST /shell-risk-check
POST /agent-visibility-report

Free preview:
GET /fix-error/preview

Pricing:
GET /pricing.json

x402 config:
GET /x402/config

Human explanation:
GET /buy

Purpose:
Submit a failing command, error message, or log snippet. Receive a concise JSON repair receipt containing root cause, one next command, retry plan, risk note, and prevention note.
You can also summarize a public URL or score the risk of a shell command before execution.

Fast start:
- GET /goal for the primary buyer, pain, result, CTA, and paid endpoint
- GET /agent.json for machine-readable metadata
- GET /payment-options.json for x402 payment details
- GET /openapi.json for request/response contracts
- GET /proof.json for machine-readable x402 mainnet paid flow proof
- GET /proof.md for human-readable proof and cautious interpretation
- GET /share-card.json for concise social/share metadata
- GET /capabilities for the three paid routes and payment protocol
- GET /buy for a human-readable landing page

Agent payment flow:
1. Read /agent.json
2. Read /goal
3. Read /payment-options.json
4. POST /fix-error without payment to receive 402
5. Retry POST /fix-error with x402 payment
6. Expect 200 paid response

Agent Visibility Report:
- Endpoint: POST /agent-visibility-report
- Purpose: returns a privacy-safe report about machine discoverability and payment readiness.
- Unpaid request: returns 402 Payment Required.
- Paid request: returns structured JSON with scores, gaps, matched discovery patterns, and next fix.
- Paid value: observed machine-discovery patterns, payment-readiness scoring, metadata gaps, and one actionable next fix.
- Privacy: aggregate-only; no raw IP, raw User-Agent, wallet address, receipt, tx hash, or event-level log is exposed.

Payment:
x402 required for POST /fix-error.
x402 required for POST /summarize-url.
x402 required for POST /shell-risk-check.
x402 required for POST /agent-visibility-report.
Current mode: mainnet.
Current network: eip155:8453.
Current price: $0.01.
Real revenue: true only after settled mainnet payment.

Trust signal:
mainnet_paid_flow_verified: true
Proof JSON: /proof.json
Proof page: /proof.md
Share card: /share-card.json
Safe claim: This service can complete a real x402 mainnet paid API flow.
Not claiming: a fully autonomous AI independently chose to buy, attribution to any specific company, or recurring external revenue yet.

Safety:
This service does not guarantee a fix. It provides diagnostic guidance only. It avoids destructive commands by default.