HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, Contact Screening, Stocks, Crypto, News MCP server

HubVibe

Machine-payable services for autonomous agents. The core product is the site compliance audit suite — WCAG 2.1 A/AA, SEO, security headers, and performance, deterministic rules against the real rendered page — and beside it a worker network (/work/*): LLM inference, web search and extraction, read-only blockchain RPC, market and prediction-market data, BigQuery analysis and forecasting, media generation, sandboxed code execution, maps, and composite research jobs. Everything is priced per call and payable by software with no account and no human in the loop.

Live: https://hubvibe-io.com

Every check is a deterministic rule run against the live page. Nothing here is a language model judging whether a site looks compliant, and a check that could not run is returned as an error, never as a passing result.

There are two ways in. Both take under a minute.

1 — Gate your CI on it: one step, nothing to install

- uses: Its-fortunatefolly/HubVibe@v1
  with:
    url: https://staging.example.com
    wallet-key: ${{ secrets.HUBVIBE_WALLET_KEY }}

That is the entire integration. Every pull request now runs the full compliance bundle against your deployed preview and fails the build on the regression that caused it — not in an audit six months later.

build means the checks actually ran.

• Findings render in the job summary: rule, impact, nodes hit, link to the fix.
• A check that failed to execute is an error, never a silent pass — a green

your real regressions still gate it.

• fail-on-error: false keeps our outage from ever blocking your deploy;

check. A repo merging 100 PRs a month spends $10. No subscription, no seat licence, no minimum.

• $0.15 per PR for all four checks as one bundle, $0.05 for a single

Gate a promotion on it:

- name: Audit staging
  id: audit
  uses: Its-fortunatefolly/HubVibe@v1
  with:
    url: https://staging.example.com
    wallet-key: ${{ secrets.HUBVIBE_WALLET_KEY }}

- name: Promote to production
  if: steps.audit.outputs.passed == 'true'
  run: ./deploy-production.sh

wallet-key is an EVM private key funded with USDC on Base. The step reads the 402, signs, and pays for its own run — no account, no checkout, nothing to provision first. max-price-usd (default 0.15) is a hard ceiling the client refuses to sign above, so fund the address like petty cash rather than a treasury. It needs no ETH: x402 signs the transfer off-chain and the facilitator pays the gas.

If you already hold a prepaid API key, pass api-key: instead of wallet-key: and the step spends that.

2 — Point your agent at it: no key, no signup, pay per call

An unauthenticated call is not an error here. It is the price sheet:

curl -i -X POST https://hubvibe-io.com/audit/wcag \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'

HTTP/1.1 402 Payment Required
PAYMENT-REQUIRED: <base64 x402 v2 PaymentRequired: the same offer, Base and Solana>

{
  "x402Version": 1,
  "error": "payment_required",
  "price_usd": 0.05,
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x837C40E2B4e976f43Ffb4451eE281A00fA9477dd",
      "maxAmountRequired": "50000",
      "resource": "https://hubvibe-io.com/audit/wcag",
      ...
    }
  ],
  "extensions": { "bazaar": { ... } },
  "docs": "https://hubvibe-io.com/.well-known/agent.json"
}

Shortened. The full README is on GitHub.