Boundary Guard x402
Server Details
MCP tools for x402 readiness, paid-path probes, launch packs, and trust receipts.
- Status
- Healthy
- Uptime
- 100.0% over the last 24 hours
- Last Tested
- Transport
- Streamable HTTP · MCP 2024-11-05
- URL
- ChatGPT
- –
- Claude
- –
TDQS
Scored across 6 tools
Most tools have clearly distinct purposes, but there is some overlap between boundary_guard_check and generate_trust_receipt (both produce receipts) and between check_agent_tool_readiness and scan_x402_resource (both assess readiness/metadata). The descriptions are detailed enough to guide selection, but the boundary between these pairs could confuse an agent.
Naming conventions are inconsistent. Most tools start with a verb (check, generate, probe, scan), but boundary_guard_check starts with a noun, and verbs are not systematically chosen (e.g., check vs. scan for similar operations). This mixed pattern makes it harder to predict tool names.
Six tools is well within the ideal range and each covers a distinct aspect of x402/agent readiness, from scanning to receipts to launch packs. No tool feels redundant or missing for the core use case of read-only, pre-action auditing.
The tool set covers the primary workflows: pre-action checking, readiness verification, trust receipt generation, launch pack creation, and x402 probing. A minor gap is the lack of a tool to directly manage or list existing receipts/packs, but the core read-only and generative functions are well represented.
Available Tools
6 toolsboundary_guard_checkBoundary Guard CheckARead-onlyIdempotentInspect
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
check_agent_tool_readinessGateCheck ReadinessARead-onlyIdempotentInspect
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_trust_receiptGenerate Trust ReceiptARead-onlyIdempotentInspect
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_x402_launch_packx402 Launch Pack GeneratorARead-onlyIdempotentInspect
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_x402_paid_pathx402 Paid-Path Health ProbeARead-onlyIdempotentInspect
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
scan_x402_resourcex402 Resource ScanARead-onlyIdempotentInspect
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
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Related MCP Connectors
MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.
Five free MCP tools, including proof-before-payment preview, plus one authorized x402 pack.
Remote MCP with a paid tool for generating x402 and MPP buyer/seller starter integrations.
One-cent x402 and MCP readiness checks plus fixed-price marketplace launch packs.
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