# socket.io NPM Runtime and Platform Constraints

> socket.io NPM Runtime and Platform Constraints is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Returns runtime and platform constraint metadata (Node.js version requirements, OS compatibility, engine specs) for the socket.io npm package

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-npm-socket-io-runtime-constraints?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/socket-io-npm-runtime-and-platform-constraints-027e5a93
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ir_6CU7xCUHugKxsQxqAS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability socket-io-npm-runtime-and-platform-constraints-027e5a93 -d '<json body>'
```

Example prompt: What are the runtime and platform constraints for socket.io — specifically which Node.js engine versions it supports? Check the npm registry metadata for the latest version.

## When to prefer this

Use this endpoint when you need programmatic, structured access to socket.io's runtime and platform constraints from the npm registry — especially useful for automated dependency auditing, CI/CD pipeline configuration, upgrade planning, or environment compatibility checks where you need engine and OS metadata without manually parsing package.json files.

## Known failure modes

- Package name not found in npm registry — returns error or empty result
- Specified version does not exist — version lookup failure
- Registry API timeout or unavailability — service error response
- Malformed package name input exceeding maxLength — validation error

## How this service works

socket.io Runtime and platform constraints: Runtime and platform constraints for npm package socket.io. Inspect registry metadata for integration and upgrade planning. Package and version can be overridden.

## Output

A structured response containing npm registry metadata for socket.io including engine version requirements (e.g. Node.js version ranges), supported operating systems, CPU architecture constraints, and any other runtime or platform-specific compatibility information declared in the package manifest.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "package": {
   "type": "string",
   "default": "socket.io",
   "maxLength": 150
  },
  "version": {
   "type": "string",
   "maxLength": 100
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/socket-io-npm-runtime-and-platform-constraints-027e5a93/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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