# Innovalyxx Sovereign Edge – Verify Transaction Evidence

> Innovalyxx Sovereign Edge – Verify Transaction Evidence is a paid API for AI agents from edge.innovalyxx.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-17).

Verifies a settled machine-to-machine (M2M) transaction by confirming its evidence and returning a trust score for the given agent DID and transaction ID.

## Facts

- Endpoint: POST https://edge.innovalyxx.com/mcp/tools/verify_transaction_evidence
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/innovalyxx-sovereign-edge-verify-transaction-evidence-eedab796
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wm8gslcxcIu5u2Wnj-ICi

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-transaction-evidence-eedab796 -d '<json body>'
```

Example prompt: Can you verify the transaction evidence for agent DID did:example:agent123 and transaction ID tx_abc_789, with a claimed settlement amount of 50 USDC, and tell me what trust score it gets?

## When to prefer this

Choose this endpoint when you need to cryptographically or ledger-confirm that a specific M2M USDC transaction was settled and assess the trustworthiness of the agent involved. It is purpose-built for autonomous agent ecosystems using DID-based identity and x402 micropayments, making it the right choice over generic blockchain explorers when you also need a trust score tied to the agent's DID. Prefer it in agentic pipelines that require evidence-based authorization before delivering services or data.

## Known failure modes

- Unknown or unresolvable agent_did returns unverified result with trust_score of 0
- Non-existent transaction_id returns verified: false with no evidence found
- Amount mismatch between claimed amount_usdc and settled amount may lower trust_score or return unverified
- Missing required fields (agent_did or transaction_id) returns a 400-level error
- Payment failure via x402 (insufficient USDC balance) blocks the call entirely
- Network or upstream ledger unavailability returns 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 a boolean verified field, a numeric trust_score, the transaction_id echoed back, and payment metadata. Indicates whether the M2M transaction evidence checks out and how much trust is associated with the agent's activity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "agent_did": {
   "type": "string",
   "minLength": 1,
   "description": "DID of the agent that initiated or received the settlement."
  },
  "amount_usdc": {
   "type": "number",
   "minimum": 0,
   "description": "Optional claimed settlement amount in USDC for evidence matching."
  },
  "transaction_id": {
   "type": "string",
   "minLength": 1,
   "description": "Settled M2M transaction identifier to verify."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "verify_transaction_evidence",
  "payment": {},
  "verified": true,
  "trust_score": 0,
  "transaction_id": "tx_demo_001"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/innovalyxx-sovereign-edge-verify-transaction-evidence-eedab796/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)