# BlockRun.AI On-Chain Indicators

> BlockRun.AI On-Chain Indicators is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0075/call, status unknown (last checked 2026-09-13).

Returns on-chain Bitcoin/crypto market health indicators including NUPL, SOPR, MVRV, Puell Multiple, and NVT for a given asset.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/market/onchain-indicator
- Price: $0.0075/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-ec8dba20
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QXRhMQDxImnJOryFpPYG7

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 blockrun-ai-ec8dba20
```

Example prompt: What is the current MVRV ratio for BTC? Pull it from the on-chain indicators endpoint.

## When to prefer this

Use this endpoint when you need quantitative on-chain metrics for Bitcoin or other crypto assets to assess market cycle position, valuation, or miner profitability. Prefer this over price-only or sentiment endpoints when you specifically need blockchain-derived indicators like NUPL, SOPR, MVRV, Puell Multiple, or NVT.

## Known failure modes

- Invalid or unsupported metric name returns an error
- Unsupported symbol returns an error or empty result
- Missing required query params (metric or symbol) returns a 400 bad request
- Service unavailable or data feed lag may cause stale or missing values

## How this service works

Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 103 models and 100 data and tool APIs.

## Output

Returns the current value of the requested on-chain indicator (e.g. NUPL, SOPR, MVRV, Puell Multiple, or NVT) for the specified crypto symbol, enabling market cycle analysis and valuation assessment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "metric": {
   "type": "string",
   "description": "Required query param"
  },
  "symbol": {
   "type": "string",
   "description": "Required query param"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-ec8dba20/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockrun.ai](https://www.zero.xyz/host/blockrun.ai/llms.txt)