# Innovalyxx Sovereign Edge – memory.verify_attestation

> Innovalyxx Sovereign Edge – memory.verify_attestation is a paid API for AI agents from edge.innovalyxx.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-19).

Verifies a portable innovalyxx.memory.attestation.v1 envelope using ed25519 cryptographic signing, confirming the authenticity and integrity of a previously attested memory entry.

## Facts

- Endpoint: POST https://edge.innovalyxx.com/mcp/tools/memory.verify_attestation
- Price: $0.01/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-memory-verify-attestation-0f634f22
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eQrhD8-chruwgJbXFpTj7

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-memory-verify-attestation-0f634f22 -d '<json body>'
```

Example prompt: Check whether this attestation envelope from our agent memory store is still valid — I need to confirm the ed25519 signature is good and the platform key is current before we act on its contents.

## When to prefer this

Choose this endpoint when you need cryptographic proof that a memory entry stored via the Innovalyxx platform has not been tampered with and was signed by a legitimate platform key. It is the authoritative verification step in the innovalyxx.memory.attestation.v1 workflow. Prefer it over generic hash-checking when you need the full trust chain including platform key currency, ed25519 signature validity, and a structured audit trail suitable for compliance or multi-agent handoffs.

## Known failure modes

- Invalid or malformed envelope structure returns ok:false with a descriptive reason
- Expired or revoked platform key causes platform_key_is_current:false
- Signature mismatch results in valid:false with reason explaining the cryptographic failure
- Missing required envelope fields cause a 400-level error
- Payment failure via x402 (insufficient USDC balance) blocks the call before verification

## 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 indicating whether the attestation envelope is valid (valid: true/false), the verification mode used (ed25519), a human-readable verification_note, the entry_id and entity_id of the attested memory, the attested_at timestamp, the content_hash, the platform_key_id, whether the platform key is still current (platform_key_is_current), and payment metadata for the x402 microtransaction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "envelope": {
   "type": "object",
   "description": "Portable innovalxx.memory.attestation.v1 envelope to verify."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "memory.verify_attestation",
  "valid": true,
  "reason": "reason",
  "payment": {},
  "entry_id": "entry_id",
  "entity_id": "entity_id",
  "attested_at": "attested_at",
  "content_hash": "content_hash",
  "platform_key_id": "platform_key_id",
  "verification_mode": "ed25519",
  "verification_note": "verification_note",
  "platform_key_is_current": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/innovalyxx-sovereign-edge-memory-verify-attestation-0f634f22/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)