# TraceFast Address Attributes

> TraceFast Address Attributes is a paid API for AI agents from mpp.tracefast.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns knowledge-graph-derived attributes for an Ethereum address, including account nature, on-chain presence, and derived traits

## Facts

- Endpoint: GET https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/attributes
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tracefast-address-attributes-be68eef1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lA3V1mcR76ClQYrh7Epgc

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 tracefast-address-attributes-be68eef1
```

Example prompt: Can you pull the TraceFast knowledge graph attributes for Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — I want to know its account nature, whether it has on-chain presence, and any derived traits?

## When to prefer this

Choose this endpoint when you need structured, knowledge-graph-derived classification and trait data for a specific Ethereum address on mainnet (chain 1), particularly for account nature classification, risk profiling, compliance screening, or enriching address data beyond raw on-chain state. Prefer this over raw RPC calls when you need pre-computed, semantic attributes rather than raw transaction history.

## Known failure modes

- Invalid or malformed Ethereum address (not 0x-prefixed or not 40 hex chars) returns an error
- Address not found in knowledge graph returns empty or minimal attribute set
- Payment failure via x402 protocol results in 402 response
- Rate limiting or quota exhaustion returns 429
- Unsupported chain ID returns an error

## How this service works

TraceFast knowledge graph: address attributes of an Ethereum address — account nature, on-chain presence and derived traits. Path address: 0x-prefixed, 40 hex. Attribute dictionary: https://docs.tracefast.xyz/api/address-attributes.md

## Output

A dictionary of attributes for the queried Ethereum address on chain 1, including account nature (e.g. EOA vs contract), on-chain presence indicators, and derived traits as defined by the TraceFast knowledge graph attribute schema.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tracefast-address-attributes-be68eef1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.tracefast.xyz](https://www.zero.xyz/host/mpp.tracefast.xyz/llms.txt)