ToolVet
75trust / 100

Deploy Apps

by WithZero in Developer tools

x402 APIPassing, checked 4 h ago

Node.js hosting: ship the Node app you built locally, unchanged — full server runtime on Cloud Run with a dedicated Postgres. Native modules OK. App reads DATABASE_URL + listens on PORT. Filesystem is writable but ephemeral (scale-to-zero) — keep durable state in Postgres. Durable /data file storage (1 GiB included).

POST https://agents.withzero.xyz/api/v1/deploy/apps

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
543 ms typical, 1.1 s slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

POST https://agents.withzero.xyz/api/v1/deploy/apps

Each call costs $0.6 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://agents.withzero.xyz/api/v1/deploy/apps
content-type: application/json

{
  "source": "example"
}

Parameters

ParameterTypeRequiredDescription
ackEphemeralbooleanNoAcknowledge the filesystem is ephemeral: required to deploy an app whose package.json depends on sqlite3/better-sqlite3 (else 400 SQLITE_NOT_DURABLE, before any charge). Durable state belongs in the injected DATABASE_URL Postgres.
envobjectNoExtra environment variables for your app, KMS-encrypted at rest. DATABASE_URL / PORT / ZERO_* are injected at deploy — do not set them.
slugstringNoSubdomain to serve at (<slug>.withzero.xyz). Lowercase letters, digits, hyphens. Defaults to a generated id. A taken slug is a 409 SLUG_TAKEN before any charge.
sourcestringYesBase64-encoded zip of your Node app (must contain a top-level package.json with a `start` script). Runtime is Node.
term_fee_microsstringNoDirect rail only: per-term hosting fee in micro-USDC. MUST equal the X-Pay-Amount-Micros header and current termFeeMicros. Omit through ZeroClick; its app-terms usage ledger is authoritative.

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 $0.6.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agents.withzero.xyz/api/v1/deploy/apps' \
  -H 'content-type: application/json' \
  --data-raw '{"source":"example"}'

# 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://agents.withzero.xyz/api/v1/deploy/apps' \
  -H 'content-type: application/json' \
  --data-raw '{"source":"example"}' \
  | 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 $0.6 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.6" });
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 $0.6 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagents.withzero.xyz%2Fapi%2Fv1%2Fdeploy%2Fapps&method=POST
const res = await pay("https://agents.withzero.xyz/api/v1/deploy/apps", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "source": "example"
  }),
});
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 $0.6 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.6"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agents.withzero.xyz/api/v1/deploy/apps",
        json={
            "source": "example",
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

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