Marketplace · API · x402

npm-downloads-range.hergertsynthora.com/service

Returns a per-day download time series for an npm package over a period from keyless api.npmjs.org — the raw signal for trend and growth-rate detection. Lets autonomous agents compute momentum/decline and feed agent-to-agent dependency-selection scoring. Ranking surface for trajectory. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.

Endpoint	`https://npm-downloads-range.hergertsynthora.com/service`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x6D9F318463168fF637b50E5b9a21392e97c7c167
method	POST
last updated	2026-11-08T18:07:40.997Z

Use it

Call it (an x402 client pays automatically)

curl -i https://npm-downloads-range.hergertsynthora.com/service
# 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-f1a330ba90d307bb

Search the whole marketplace from your agent (MCP)

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