Skill: User onboarding

Bundled execution of the User onboarding workflow — Take a signup form submission and run the full onboarding workup deterministically: validate the email, score the chosen password, mint a stable internal ID, derive a URL-safe handle from the display name, generate a recovery / API secret, hash the password for storage, and verify the 2FA setup code. One pass, every step a pure-CPU call. One x402 payment runs 7 underlying tools (email-validate, password-strength, uuid, slugify, password, hash, totp); partial-success per step.

Input

Field	Type	Description
email *	string	User-supplied email address
password *	string	User-chosen password (plaintext, will be scored then hashed; never logged)
displayName *	string	User-supplied display name (will be slugified into a URL handle)
totpSecret *	string	Base32 TOTP secret generated during 2FA enrollment (server-side state)
totpCode *	string	6-digit code the user typed in to confirm their authenticator app is wired up

Example output

{
  "pack": "user-onboarding",
  "args": {
    "email": "ada@example.com",
    "password": "S0meStrongPassw0rd!",
    "displayName": "Ada Lovelace",
    "totpSecret": "JBSWY3DPEHPK3PXP",
    "totpCode": "492039"
  },
  "steps": [
    {
      "slug": "email-validate",
      "ok": true,
      "result": {}
    },
    {
      "slug": "password-strength",
      "ok": true,
      "result": {}
    },
    {
      "slug": "uuid",
      "ok": true,
      "result": {}
    },
    {
      "slug": "slugify",
      "ok": true,
      "result": {}
    },
    {
      "slug": "password",
      "ok": true,
      "result": {}
    },
    {
      "slug": "hash",
      "ok": true,
      "result": {}
    },
    {
      "slug": "totp",
      "ok": true,
      "result": {}
    }
  ],
  "summary": "7/7 steps succeeded"
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/skill/user-onboarding \
  -H "Content-Type: application/json" \
  -d '{"email":"ada@example.com","password":"S0meStrongPassw0rd!","displayName":"Ada Lovelace","totpSecret":"JBSWY3DPEHPK3PXP","totpCode":"492039"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

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

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/skill/user-onboarding", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "email": "ada@example.com",
    "password": "S0meStrongPassw0rd!",
    "displayName": "Ada Lovelace",
    "totpSecret": "JBSWY3DPEHPK3PXP",
    "totpCode": "492039"
  }),
});

No wallet? Pay with compute

This is a pure-CPU tool, so an agent without a wallet can pay with proof-of-work instead of USDC: fetch a challenge, solve the sha256 puzzle (16 leading zero bits — a fraction of a second of CPU, no money, no AI tokens), and resend with the X-Pow-Solution header.

import { createHash } from "node:crypto";
const lz = (b) => { let t = 0; for (const x of b) { if (!x) { t += 8; continue; } t += Math.clz32(x) - 24; break; } return t; };
const c = await (await fetch("https://agent402.tools/api/pow/challenge?slug=skill-user-onboarding")).json();
let n = 0;
while (lz(createHash("sha256").update(c.challenge + ":" + n).digest()) < c.difficulty) n++;
await fetch("https://agent402.tools/api/skill/user-onboarding", { method: "POST", headers: { "X-Pow-Solution": c.token + ":" + n, "Content-Type": "application/json" }, body: JSON.stringify({"email":"ada@example.com","password":"S0meStrongPassw0rd!","displayName":"Ada Lovelace","totpSecret":"JBSWY3DPEHPK3PXP","totpCode":"492039"}) });

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