# ChainRay Address Labels

> ChainRay Address Labels is a paid API for AI agents from chainray.online, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-08).

Returns human-readable labels and metadata for a blockchain wallet or contract address on a specified chain

## Facts

- Endpoint: GET https://chainray.online/address-labels/%7Baddress%7D
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-08
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainray-address-labels-77766e0c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6qL3YoVqiwG0617YYE2b0

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 chainray-address-labels-77766e0c
```

Example prompt: What's the label for the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum — is it a known exchange, protocol, or whale wallet?

## When to prefer this

Use this endpoint when you need to identify or annotate a specific blockchain address with a human-readable label — for example, enriching transaction data, flagging known exchanges, or resolving contract addresses to protocol names. Prefer it over on-chain ENS/domain lookups when you need cross-chain coverage (46 chains) and curated intelligence labels beyond just domain names.

## Known failure modes

- Unknown address — no label found, returns empty or null result
- Invalid address format — malformed hex string returns 400 error
- Unsupported chain — chain parameter not recognized returns 400 or 404
- Payment failure — x402 payment not accepted, returns 402
- Rate limiting or quota exceeded — returns 429

## How this service works

The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.

## Output

A human-readable label and classification metadata for the queried blockchain address, including entity name, address type (exchange, protocol, EOA, multisig, etc.), and any associated tags or annotations for the specified chain.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "chain": "ethereum",
   "address": "0x1234567890123456789012345678901234567890"
  }
 }
}
```

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "Blockchain network"
      },
      "address": {
       "type": "string",
       "description": "Wallet or contract address"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainray-address-labels-77766e0c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chainray.online](https://www.zero.xyz/host/chainray.online/llms.txt)