ToolVet
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X402 Chain Reads V1 Llm Chat Llama3 1 8b

by Base LLM Chat in AI models & inference

x402 APIFailing, checked 15 h ago

OpenAI-style chat completion from Llama-3.1-8B-Instruct. Base LLM chat with messages and max_tokens. Returns: an OpenAI-style chat completion from the model the service is named for (DeepSeek-V4-Flash-0731, Qwen3-32B or Llama-3.1-8B-Instruct): POST {messages: [{role, content}], max_tokens <= 1024}; returns the assistant message, the model, and its token usage. Messages up to 16,000 characters in total.

POST
https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b
Price
$0.003
per call in USDC
Uptime
0.0%
last 30 days
Response time
-
no timed checks yet
Last check
Failed
15 h ago, next in 3 days

Run a free test callHow to call it

Reliability

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Latest check failed 15 h ago: Connection failed (UND_ERR_CONNECT_TIMEOUT)

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How to call it

POST https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b

Each call costs $0.003 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b
content-type: application/json

{
  "max_tokens": 32,
  "messages": [
    {
      "content": "Say hello in five words.",
      "role": "user"
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
max_tokensintegerNo
messagesarray of objectYes

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b' \
  -H 'content-type: application/json' \
  --data-raw '{"max_tokens":32,"messages":[{"content":"Say hello in five words.","role":"user"}]}'

# 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://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b' \
  -H 'content-type: application/json' \
  --data-raw '{"max_tokens":32,"messages":[{"content":"Say hello in five words.","role":"user"}]}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fari001.tailb4ac3a.ts.net%2Fv1%2Fventures%2Fx402_chain_reads_v1%2Fllm_chat_llama3_1_8b&method=POST
const res = await pay("https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "max_tokens": 32,
    "messages": [
      {
        "content": "Say hello in five words.",
        "role": "user"
      }
    ]
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/llm_chat_llama3_1_8b",
        json={
            "max_tokens": 32,
            "messages": [
                {
                    "content": "Say hello in five words.",
                    "role": "user",
                },
            ],
        },
    )
    print(res.status_code, res.text)

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