Live on Base Mainnet

Product reputation scores
for AI agents

Structured, real-time product reputation analysis from Reddit, Hacker News, YouTube, and Amazon. Pay per request with USDC via the x402 protocol.

4
Data sources
6
Reputation dimensions
$0.03
Starting price
x402
Payment protocol

API endpoints

Three endpoints for different use cases. All return structured JSON with dimensional scores.

POST
/analyze
Full reputation report with 6-dimension scoring
$0.05 USDC
POST
/compare
Head-to-head comparison of 2-5 products
$0.08 USDC
POST
/monitor
Quick 7-day sentiment pulse
$0.03 USDC

How it works

Agent sends request, pays USDC, receives structured reputation data.

01

Request

Your agent sends a product name to any endpoint. The API responds with HTTP 402 and payment requirements.

02

Pay

The x402 client automatically signs a USDC payment on Base and retries the request. Settlement happens on-chain in seconds.

03

Receive

The API aggregates data from 4 sources, runs LLM analysis, and returns a structured JSON report with dimensional scores.

Data sources

Aggregating real opinions from communities that matter.

Y

Hacker News

Developer community discussions via Algolia API

YouTube

Video reviews and transcript analysis

Amazon

Verified purchase reviews via Rainforest API

Reddit

Community discussions and user experiences

Quick start

One request is all you need.

// Install x402 client
npm install @x402/fetch @x402/evm

// Make a paid API call
import { wrapFetchWithPayment, x402Client } from '@x402/fetch';
import { registerExactEvmScheme } from '@x402/evm/exact/client';

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

const res = await payFetch('https://x402-reputation-api-production.up.railway.app/analyze', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ product: 'AirPods Pro' }),
});

const data = await res.json();
// { overallScore: 78, dimensions: { ... }, sentiment: "positive", ... }

Start building with reputation data

Give your AI agent the ability to evaluate products before making decisions.