Changelog

Notable changes to Quartermaster. Newest first.

2026-07-07

• New flagship endpoint: Settlement Assurance ($0.03) - proves a completed x402 payment settled correctly, as one scored report.
• Security: hardened the URL-fetching tools against SSRF (post-redirect host re-validation; blocked IPv4-mapped IPv6 and decimal/hex-encoded IP).
• Published to the official MCP registry via domain auth (no GitHub required).
• New pages: what is x402, privacy, security, transparency, and this changelog. Added a social preview image and richer structured data.
• Reliability: the daily self-test now settles real canary payments on the AI and chain paths, not just a static endpoint.
• Every code example now has a one-click copy button and a PowerShell variant alongside curl.
• MCP tool descriptions now include explicit "choose this vs that" guidance so agents pick the right tool.

Earlier

• x402 V2 alignment: PAYMENT-REQUIRED / PAYMENT-RESPONSE headers, human discovery page, and V2-compatible docs.
• Reliability layer: daily self-test, canary payment, and a public status page.
• MCP server, x402 inspector and audit, Base chain and crypto tools, developer utilities, and the grouped tool catalog.