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Tool detail

Xerxes

Classifies a Base address at a given block as an EOA, ERC-20 token, Uniswap V2/V3 pool, bare contract, or unread, returning a typed object with blockNumber and blockHash.

Categories: Onchain data

Use when

  • identify what kind of account or contract a Base address is
  • distinguish a Uniswap pool from a plain ERC-20 token or EOA on Base

Not for

  • endpoint is hosted on a private Tailscale (.ts.net) network - reachability is unconfirmed
  • not for other chains - Base only, per the description

Inputs

GET path param: addr (Base address, required, from URL template); no query or body parameters declared.

Admitted input schema

{
  "type": "object",
  "properties": {},
  "required": [],
  "additionalProperties": false
}

Endpoint

Method
GET
URL
https://ari001.tailb4ac3a.ts.net/v1/base/object/{addr}

Payment

Protocol
x402
Listed price
0.01 USDC per call on Base
Payment method
exact
Network
eip155:8453
Asset
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Record
GET https://ari001.tailb4ac3a.ts.net/v1/base/object/:addr
Retrieved
2026-09-30T20:37:07.382Z
Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built
2026-09-30T22:31:58.034Z