Changelog

Unreleased#

Read-only MCP server at /mcp (Streamable HTTP, stateless, batches, SSE framing, CORS) with ten tools: six free, four paid tools that return x402 requirements and never pay.
Free preview tier under /api/v1/preview/*, rate limited, running the same live computation with detail withheld.
Paid routes answer an explanatory 503 (with links to the free tier and the operator command) until a payout address is set. No address is ever invented.
Discovery: x402 bazaar extensions with input and output schemas and real examples, MCP server card, A2A agent card, RFC 9727 api-catalog, OpenAPI preview and MCP paths, Link headers, robots with Content-Signal, sitemap, server.json, glama.json.
Documentation site at /docs/ generated from docs/*.md with search, markdown twins, llms.txt and llms-full.txt.
Landing page: Connect your AI, MCP tools, works-with strip, live "Try it" with a free preview mode, ?embed=1 and an "Open in Papertrade OS" link, frame-ancestors for the OS.

Initial release.

Four paid endpoints: wallet liquidation risk, nearby liquidation map, close/bust estimate, top traders.
Free endpoints: health, markets, OpenAPI 3.1, x402 discovery.
x402 v2 with the PayAI facilitator: USDC on Solana first, Base second. Verify before the handler, settle only after a 2xx.
Operator-configurable prices through wrangler vars; payTo addresses from environment only, 503 when unset.
PapertradeX402 typed client with a dry-run mode, publishable from src/client.ts.
Landing page with live markets, endpoint catalog, curl examples and an interactive "Try the 402" form.
Tests against recorded real Papertrade fixtures, x402 schema validation of the 402 shape, and facilitator rejection of malformed payments.