Index onlineMerchant portal
Api Endpoint

Annalist

Supply-chain check of a popular package (the 8,000 most used on each of npm, PyPI, crates.io and Go): latest version and release activity, maintainers or owners, install scripts, provenance, deprecation, retractions, and what changed since we began tracking it daily: releases by a new publisher account, owner changes, install scripts added, provenance dropped, source repository moved, yanks. Account names are never published. Signed.

Open interactive test console

Offering

Provider
api.annalist.dev
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Security
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.annalist.dev/v1/packages/check
MIME type
application/json
First seen
2026-10-16T13:31:51.689Z
Last seen
Tags
supply-chain, Security, npm, pypi, rust

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xDE4805678438b6bfBbFE047fFF305C928653Fe17"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "8j7NNmuxmobnZh7s4Mn9vsSF1BiiGFDpBHZ2XQxz2TME"
  }
]

Observed health

Status
Healthy
Latest latency
148 ms
Average latency
263 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "ecosystem": {
          "type": "string",
          "enum": [
            "npm",
            "pypi",
            "crates",
            "go"
          ],
          "description": "npm (default), pypi, crates or go"
        },
        "name": {
          "type": "string",
          "description": "package name, for example lodash, requests, serde or golang.org/x/crypto"
        }
      },
      "required": [
        "name"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "ecosystem": {
              "description": "npm (default), pypi, crates or go",
              "enum": [
                "npm",
                "pypi",
                "crates",
                "go"
              ],
              "type": "string"
            },
            "name": {
              "description": "package name, for example lodash, requests, serde or golang.org/x/crypto",
              "type": "string"
            }
          },
          "required": [
            "name"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}