Productive Venue Snapshot

{
  "asset": {
    "kind": "native"
  },
  "block_number": "1",
  "cached": false,
  "chain_id": 1,
  "classification": "OBSERVED_COMPLETE",
  "errors": [],
  "evidence": [],
  "limitations": [
    "This is a factual snapshot of supported protocol state. It is not investment advice, not a recommendation, and not a complete map of DeFi."
  ],
  "machine": "VM04",
  "methodology_version": "productive-venue-0.2.0",
  "observation_age_ms": 0,
  "omissions": [],
  "protocol_set_version": "aave-v3-lido-eth-base-2026-08-22-v1",
  "request": {
    "asset": {
      "kind": "native"
    },
    "chain_id": 1,
    "limit": 20,
    "protocols": null,
    "sort": "protocol",
    "venue_types": null
  },
  "resolved": {
    "asset": {
      "kind": "native"
    },
    "chain_id": 1,
    "symbol": "ETH"
  },
  "result_count": 0,
  "retrieved_at": "2026-08-22T00:00:00.000Z",
  "sort": {
    "field": "protocol",
    "label": "objective_sort_not_a_recommendation",
    "order": "protocol"
  },
  "status": "OK",
  "truncated": false,
  "venues": []
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.agentmercantile.com/v1/productive-venue-snapshot' \
  -H 'content-type: application/json' \
  --data-raw '{"asset":{"kind":"native"},"chain_id":1}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.agentmercantile.com/v1/productive-venue-snapshot' \
  -H 'content-type: application/json' \
  --data-raw '{"asset":{"kind":"native"},"chain_id":1}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentmercantile.com%2Fv1%2Fproductive-venue-snapshot&method=POST
const res = await pay("https://api.agentmercantile.com/v1/productive-venue-snapshot", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "asset": {
      "kind": "native"
    },
    "chain_id": 1
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.agentmercantile.com/v1/productive-venue-snapshot",
        json={
            "asset": {
                "kind": "native",
            },
            "chain_id": 1,
        },
    )
    print(res.status_code, res.text)