# Arkham x402 Tag Params Lookup

> Arkham x402 Tag Params Lookup is a paid API for AI agents from api.arkm.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).

Returns available tag parameter options (e.g. exchange names, tag IDs, labels) that can be used to query Arkham's wallet intelligence and on-chain data tagging system.

## Facts

- Endpoint: POST https://api.arkm.com/x402/tag/params
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arkham-x402-tag-params-lookup-9f6404b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7_-hAUqoIghtT0fXPZAy5

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 arkham-x402-tag-params-lookup-9f6404b3 -d '<json body>'
```

Example prompt: Pull the available Arkham tag parameters for the 'proof-of-reserves' tag so I can see which exchanges and labels are supported for filtering wallet data.

## When to prefer this

Use this endpoint when you need to discover or enumerate the valid tag parameter values supported by Arkham's intelligence platform before constructing more specific wallet or entity queries. It is the right choice when building dynamic filters, populating dropdowns, or validating tag IDs prior to downstream queries against Arkham's on-chain data. Prefer this over guessing tag names manually or hardcoding exchange identifiers.

## Known failure modes

- Invalid or unrecognized tag type returns empty array or 404
- Payment failure via x402 results in 402 Payment Required with no data returned
- Malformed POST body returns 400 Bad Request
- Tag ID does not exist in Arkham's system returns empty result set
- Network timeout on Arkham API returns 503 or connection error

## How this service works

Get Arkham tag parameters. $1.00 per call.

## Output

Returns a JSON array of tag parameter objects, each containing: a tag ID (e.g. 'proof-of-reserves'), a numeric rank, a human-readable label (e.g. 'Binance Proof of Reserves'), a tagParams string used in queries (e.g. 'Binance'), a boolean indicating whether the tag has a dedicated page (disablePage), and a boolean indicating whether entities are excluded (excludeEntities).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "id": {
   "anyOf": [
    {
     "type": "string"
    },
    {
     "type": "number"
    },
    {
     "type": "boolean"
    },
    {
     "type": "array",
     "items": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "number"
       },
       {
        "type": "boolean"
       }
      ]
     }
    }
   ],
   "description": "The tag identifier to retrieve parameters for."
  },
  "limit": {
   "anyOf": [
    {
     "type": "string"
    },
    {
     "type": "number"
    },
    {
     "type": "boolean"
    },
    {
     "type": "array",
     "items": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "number"
       },
       {
        "type": "boolean"
       }
      ]
     }
    }
   ],
   "description": "Number of items to return per page (1-1000, default 100)."
  },
  "offset": {
   "anyOf": [
    {
     "type": "string"
    },
    {
     "type": "number"
    },
    {
     "type": "boolean"
    },
    {
     "type": "array",
     "items": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "number"
       },
       {
        "type": "boolean"
       }
      ]
     }
    }
   ],
   "description": "Number of items to skip from the beginning (must be >= 0, default 0)."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": [
  {
   "id": "proof-of-reserves",
   "rank": 20,
   "label": "Binance Proof of Reserves",
   "tagParams": "Binance",
   "disablePage": false,
   "excludeEntities": false
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arkham-x402-tag-params-lookup-9f6404b3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.arkm.com](https://www.zero.xyz/host/api.arkm.com/llms.txt)