Marketplace · API · x402

api.annalist.dev/v1/mcp/server

Use before connecting a remote MCP server: independent checks by registry name or URL. Uptime and connect time from daily probes (initialize and tools/list; no tool is ever called), sign-in mode, protocol version, tool count, and tool-definition changes in 30 days (how 'rug pull' attacks work), with domain age, a grade and reasons. Covers remote servers in the Official MCP Registry. Signed.

Endpoint	`https://api.annalist.dev/v1/mcp/server`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~839 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xDE4805678438b6bfBbFE047fFF305C928653Fe17
method	GET
last updated	2026-11-09T12:00:53.921Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.annalist.dev/v1/mcp/server
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-3be29cdce8a2ae43

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

api.annalist.dev/v1/mcp/server

Use it

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