# Onvexia HODL Waves

> Onvexia HODL Waves is a paid API for AI agents from onvexia.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-19).

Returns HODL wave data — the distribution of coin supply by last-movement age bands — for a specified blockchain

## Facts

- Endpoint: GET https://onvexia.com/v1/chain/hodl-waves
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/onvexia-hodl-waves-441c04d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LROAOFa5g0TiFwdMrt0pO

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-hodl-waves-441c04d4
```

Example prompt: Pull the HODL waves for bitcoin from Onvexia — I want to see the current breakdown of supply by how long coins have been sitting unmoved.

## When to prefer this

Choose this endpoint when you need on-chain supply age distribution (HODL waves) for Bitcoin or other supported chains, especially when you want historical depth back to 2008 and cross-chain coverage in a single REST call. Prefer this over generic market data APIs that lack supply-age segmentation, or over building your own UTXO/account-age analysis from raw node data.

## Known failure modes

- Unknown or unsupported chain slug returns empty data array (not an error — per schema convention, empty array means no rows in range)
- Missing chain parameter defaults to bitcoin
- Response may return empty data if historical coverage for the requested chain is limited
- Payment not processed results in HTTP 402 response before data is returned
- Malformed query parameters may return a 4xx error

## 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

Returns an array of HODL wave data points showing on-chain coin supply segmented by age bands (e.g. 1d–1w, 1w–1m, 1m–3m, up to 5y+), along with a meta object describing data coverage, what was measured, and provenance information including a link to the OpenAPI docs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string",
       "description": "Chain slug, default bitcoin"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "description": "The result — an array or object depending on the endpoint. An empty array means no rows in range, never that the metric is unsupported."
      },
      "meta": {
       "type": "object",
       "description": "Coverage and provenance: what was measured, and what is not held. A null label means no label is held, never that the subject is safe."
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [],
  "meta": {
   "docs": "https://onvexia.com/openapi.json",
   "endpoint": "/v1/chain/hodl-waves"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/onvexia-hodl-waves-441c04d4/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)