# SiteSignal Go Module Latest Version

> SiteSignal Go Module Latest Version is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).

Fetches the current latest version, release timestamp, and origin metadata for a public Go module from the Go module proxy.

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/go-module-latest
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-go-module-latest-version-3a8f14f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_71RI_wvi0Urjbfx0ZhqCe

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 sitesignal-go-module-latest-version-3a8f14f6
```

Example prompt: What's the latest version of the golang.org/x/net Go module, including when it was released?

## When to prefer this

Use this endpoint when you need a quick, authoritative lookup of the latest published version and release date for any public Go module, without setting up local Go tooling or running go list commands. Ideal for CI pipelines, dependency dashboards, or agent workflows that need to check Go package currency programmatically. Prefer this over scraping pkg.go.dev or GitHub releases when you want structured data directly from the canonical Go module proxy.

## Known failure modes

- Module path not found on the Go module proxy — returns an error indicating no such module
- Invalid or malformed module path (under 3 or over 255 characters) — schema validation error
- Module exists but has no tagged versions — proxy may return pseudo-version or error
- Go module proxy is temporarily unavailable — upstream timeout or 5xx error
- Private or restricted modules not accessible via the public proxy

## How this service works

Return the public Go module proxy's current @latest version, release timestamp, and bounded origin metadata.

## Output

Returns the latest semantic version string (e.g. v1.21.0), the UTC timestamp of that release, and bounded origin metadata sourced from the public Go module proxy (proxy.golang.org).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "module"
     ],
     "properties": {
      "module": {
       "type": "string",
       "maxLength": 255,
       "minLength": 3,
       "description": "Public Go module path."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitesignal-go-module-latest-version-3a8f14f6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phases-prot-shine-royal.trycloudflare.com](https://www.zero.xyz/host/phases-prot-shine-royal.trycloudflare.com/llms.txt)