One-cent x402 and MCP readiness checks plus fixed-price marketplace launch packs.
Scored across 6 tools
Most tools have distinct purposes, but there is some conceptual overlap: 'check_agent_tool_readiness' and 'scan_x402_resource' both evaluate readiness, while 'boundary_guard_check' and 'generate_trust_receipt' both produce receipts. Descriptions clarify the differences, so ambiguity is low.
All names use snake_case, and most follow a verb_noun pattern (check_, generate_, probe_, scan_). 'boundary_guard_check' deviates by being a noun-noun compound, but it's the only outlier and remains readable.
With 6 tools, the count is well-scoped for an x402/MCP utility server. Each tool covers a distinct aspect (pre-action guard, readiness, receipts, launch pack, probing, scanning) without unnecessary bloat.
The set covers the core lifecycle of x402 validation and seller readiness: pre-action checks, readiness assessment, trust receipts, launch assets, and endpoint probing/scanning. Minor gaps exist (e.g., no tool to update or delete launch packs), but they are not critical to the server's purpose.
Create a deterministic, read-only pre-action receipt from request, policy, and optional result evidence. Use before an agent posts, spends, lists, or writes so the decision can be audited; no external action is executed.
Inputs: request (required), policy, result, nextStep. Returns: decision, nextStep, createdAt, receiptId, +3 more
GateCheck readiness: check whether an x402/agent-facing tool is ready for agent routing, marketplace listing, and paid-path monitoring, including public agent discovery surfaces (/llms.txt, /agents.txt, /.well-known/mcp.json, /mcp). Pass target plus optional tier, marketplace_url, expected_resources, and paid_path; deep/report tiers add unpaid 402 probing when paid_path is supplied. Tiers: quick $1, deep $5, report $10.
Inputs: target (required), tier, method, expected, +3 more. Returns: scan, tier, ready, score, +8 more
Generate a deterministic trust receipt from sanitized request/policy/result/payment summaries. Do not submit raw auth headers, cookies, API keys, private keys, payment signatures, payment response headers, customer prompts, customer documents, or payer-identifying evidence.
Inputs: request (required), policy, result, payment, +1 more. Returns: decision, nextStep, createdAt, receiptId, +3 more
Generate marketplace-safe launch assets for an x402/MCP seller: listing copy, buyer FAQ, checklist, approval packet, and claim boundaries. Pass target plus optional product_name, audience, primary_use_case, marketplace_url, and paid_path; service/premium tiers include readiness evidence. Tiers: single $9, service $29, premium $49.
Inputs: target (required), tier, method, audience, +7 more. Returns: tier, report, target, product, +8 more
Probe a public x402 paid endpoint without signing or paying, then parse the HTTP 402 challenge. Pass target plus optional expected network/asset/price to verify payment metadata and receive a deterministic health receipt.
Inputs: target (required), mode, method, expected. Returns: checks, issues, target, healthy, +3 more
Read-only scan of a public API/provider URL for x402, OpenAPI, pricing, and agent-discovery metadata. Pass url, and optionally marketplace_url plus expected_resources, to get a readiness score, issues, and fixes; no private endpoints are called.
Inputs: url (required), marketplace_url, expected_resources. Returns: score, issues, prices, target, +2 more
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Market-validated MCP capabilities with x402 paid execution.
x402 MCP with exact and batched payments for recurring wallet, trading, market and web workflows.
MCP/x402 starter audit; payment-ready buyers call buy_now first.
x402 MCP get-paid path: USDC, spend caps, AUP, $49 kit. CAPTCHA/web-unlock for payment-ready agents.
Add one secure layer between your agents and this server.