# Innovalyxx Sovereign Edge – Verify Site Certification

> Innovalyxx Sovereign Edge – Verify Site Certification is a paid API for AI agents from edge.innovalyxx.com, paid per call via x402, $3000/call, status unknown (last checked 2026-09-19).

Verifies planning and compliance certification status for a named development site in a UK city, returning ledger evidence, payment proof, and runtime attestation.

## Facts

- Endpoint: POST https://edge.innovalyxx.com/mcp/tools/verify_site_certification
- Price: $3000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/innovalyxx-sovereign-edge-verify-site-certification-40737e86
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mQhvJR0xO1zEEzP_uxbwG

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 innovalyxx-sovereign-edge-verify-site-certification-40737e86 -d '<json body>'
```

Example prompt: Can you verify the site certification for the Castlegate Regeneration project in Sheffield — development reference SHF-2023-0441 — and give me the compliance ledger and attestation?

## When to prefer this

Use this endpoint when you need authoritative, ledger-anchored certification verification for a named UK development site with a traceable 30-year compliance trail, especially when cryptographic runtime attestation and payment-evidenced provenance are required — for example in legal due diligence, investor audits, or planning authority submissions. Prefer this over generic planning lookups when you need on-chain evidence and attestation rather than just a status flag.

## Known failure modes

- Invalid or unrecognised city_id enum value returns a validation error
- Unknown development_ref not found in the compliance ledger returns empty or error certification object
- Missing required fields (site_name or development_ref) cause a 400-class error
- Payment failure via x402/USDC results in a 402 response before the tool executes
- Service unavailability or ledger connectivity issues may return a 5xx error

## How this service works

Verified cyber-physical AI tools for autonomous agents. Pay per call via x402 (USDC on Base). 26 tools covering MRV verification, biodiversity, skip twin, site certification, agent trust, transaction evidence, protocol bridging, GEO audit, IATP reputation, ABV maturity, NIST TEVV alignment, and encrypted memory write/read/query/grant/revoke/tool_context/pricing_hint/subscription_quote/attest/verify_attestation.

## Output

Returns a JSON object with an ok flag, the tool name, a ledger object containing compliance trail data, a payment object with transaction evidence, a certification object with the site's certification details, and a runtime_attestation object confirming the integrity of the verification at execution time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "city_id": {
   "enum": [
    "birmingham",
    "bristol",
    "edinburgh",
    "glasgow",
    "leeds",
    "leicester",
    "liverpool",
    "london",
    "manchester",
    "newcastle",
    "sheffield",
    "southampton"
   ],
   "type": "string",
   "description": "City catalog key for planning constraints (e.g., 'southampton')."
  },
  "site_name": {
   "type": "string",
   "minLength": 1,
   "description": "Human-readable development site name."
  },
  "development_ref": {
   "type": "string",
   "minLength": 1,
   "description": "Planning / development reference recorded on the 30-year compliance trail."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "verify_site_certification",
  "ledger": {},
  "payment": {},
  "certification": {},
  "runtime_attestation": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/innovalyxx-sovereign-edge-verify-site-certification-40737e86/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from edge.innovalyxx.com](https://www.zero.xyz/host/edge.innovalyxx.com/llms.txt)