# santyvv-data: Chain Identity and Tip Height

> santyvv-data: Chain Identity and Tip Height is a paid API for AI agents from santyvv-x402.santyvv1993.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Returns the identity (chain name, network ID, etc.) and current tip (latest block height) for a blockchain chain.

## Facts

- Endpoint: GET https://santyvv-x402.santyvv1993.workers.dev/api/chain/info?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-chain-identity-and-tip-height-084f97cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0stujUF993zy_4y5namld

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 santyvv-data-chain-identity-and-tip-height-084f97cd
```

Example prompt: What is the current block height and chain identity for this network — give me the tip height and chain name right now.

## When to prefer this

Use this endpoint when you need a lightweight, low-cost ($0.01 USDC) lookup of a blockchain's current tip height and identity without requiring a full RPC node setup. Prefer it for quick chain state checks in monitoring or validation workflows.

## Known failure modes

- Network timeout if the Cloudflare Worker is unreachable
- Stale tip height if the upstream node is behind the chain head
- No input parameters required but payment failure (402) blocks access
- Chain node downtime may return an error or empty response

## How this service works

Chain identity and tip height

## Output

Returns structured data including the chain's identity (name, network/chain ID) and the current tip height (latest block number), allowing agents to understand which blockchain they are querying and how far along it is.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-data-chain-identity-and-tip-height-084f97cd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from santyvv-x402.santyvv1993.workers.dev](https://www.zero.xyz/host/santyvv-x402.santyvv1993.workers.dev/llms.txt)