# Onvexia Signal Integrity

> Onvexia Signal Integrity is a paid API for AI agents from onvexia.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-19).

Returns a fused signal-integrity score and supporting analytics for a crypto asset symbol, drawing on labeled addresses, on-chain supply-age history, and half a million analyzed documents across ten chains.

## Facts

- Endpoint: GET https://onvexia.com/v1/assets/%7Bsymbol%7D/signal-integrity
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/onvexia-signal-integrity-d30496ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NAjQYyJlprVw7zoeVyvka

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 onvexia-signal-integrity-d30496ee
```

Example prompt: Can you pull the Onvexia signal integrity reading for ETH — I want to see the fused score backed by their labeled address data and supply-age history across all ten chains they cover?

## When to prefer this

Choose this endpoint when you need a single, fused signal-integrity verdict for a crypto asset that synthesizes on-chain labeled addresses, supply-age history, and document-backed analytics across ten chains — rather than querying raw chain data or a single-dimension metric. Particularly useful for due diligence, compliance checks, or research workflows where data reliability and coverage depth matter.

## Known failure modes

- Unknown or unsupported asset symbol returns empty data array
- Insufficient payment (x402 required at $0.005 USDC per call) results in 402 Payment Required
- Malformed symbol path parameter causes 400 Bad Request
- Asset not yet covered across all ten chains may return partial data
- Rate limiting or backend overload may return 429 or 503

## How this service works

Thousands of assets across ten chains, half a million analysed documents, labelled addresses and supply-age history reaching back to 2008 — fused into one reading per asset. REST, SQL, GraphQL and MCP.

## Output

A JSON response with a `data` array containing the fused signal integrity reading for the requested asset symbol — which may include integrity scores, labeled address metadata, supply-age history details, document coverage indicators, and chain-level analytics — plus a `meta` object pointing to the full OpenAPI spec and the endpoint path.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [],
  "meta": {
   "docs": "https://onvexia.com/openapi.json",
   "endpoint": "/v1/assets/{symbol}/signal-integrity"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/onvexia-signal-integrity-d30496ee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from onvexia.com](https://www.zero.xyz/host/onvexia.com/llms.txt)