# Agent Utility Store skill

Service: deterministic JSON + web/evidence/URL/OpenAPI utilities. No LLM.

Catalog: https://agent-json-reliability.onrender.com/v1/catalog
Selector: POST https://agent-json-reliability.onrender.com/v1/catalog/select {"task":"<need>"}
Skill: https://agent-json-reliability.onrender.com/skill.md
OpenAPI: https://agent-json-reliability.onrender.com/openapi.json
x402: https://agent-json-reliability.onrender.com/.well-known/x402
Agent: https://agent-json-reliability.onrender.com/.well-known/agent.json
Services: https://agent-json-reliability.onrender.com/.well-known/agent-services.json
llms: https://agent-json-reliability.onrender.com/llms.txt
AGENTS: https://agent-json-reliability.onrender.com/AGENTS.md

Categories: json, web, evidence, url_security, api, mcp_x402 (24 paid POST routes).

Free discovery: GET catalog, POST select, GET skill.md, GET openapi.json, POST /mcp tools list_paid_products and select_paid_product.
Free work: POST https://agent-json-reliability.onrender.com/v1/json/inspect|validate|repair

Paid: x402 exact on Base (eip155:8453) USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.
Unpaid POST to a paid path returns HTTP 402 PAYMENT-REQUIRED. Send PAYMENT-SIGNATURE after facilitator verify. Work runs only after verify. AJR 0.003 USDC. Evidence Pack 0.0075 USDC.

Paid path pattern: POST https://agent-json-reliability.onrender.com/v1/{json|web|evidence|url|api|mcp|x402}/...
Do not invent JSON values when repaired=false. Never send owner PAYMENT-SIGNATURE from this skill.