# x402 Market Intelligence API

> x402 Market Intelligence API is a paid API for AI agents from api.x402intel.uk, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns current x402-protocol market intelligence including USDC payment flows attributed to catalog entries, address-level demand signals, and value-matched transaction history.

## Facts

- Endpoint: GET https://api.x402intel.uk/x402-market
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-market-intelligence-api-08ebcda8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fgJlCqIEc9GzpxkvsXN64

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-market-intelligence-api-08ebcda8
```

Example prompt: Pull the latest x402 market intelligence report — I want to see current USDC payment flows attributed to catalog entries, address-level demand signals, and the value-matched transaction history.

## When to prefer this

Use this endpoint when you need a current snapshot of x402 protocol market dynamics, including which catalog-listed services are attracting USDC payments and which on-chain addresses show demand. Prefer this over general blockchain explorers when you want pre-aggregated, catalog-attributed x402-specific intelligence rather than raw chain data.

## Known failure modes

- Payment not sent or USDC insufficient (402 Payment Required)
- Network timeout or upstream data unavailability (503 Service Unavailable)
- Rate limiting if called too frequently
- Empty or sparse data if x402 market activity is low in the current window

## How this service works

x402 market intelligence with current catalog-attributed USDC flow, address-level demand signals and separately labeled value-matched history. The headline covers Base only (market.universeChains); the multi-chain picture ships alongside it as ecosystem, split into an RPC-proven floor and an indexed upper bound that are not additive (notASum). Attribution is not exclusive protocol-intent proof.

## Output

A market intelligence payload containing: catalog-attributed USDC payment flows showing which x402 endpoints are receiving payments, address-level demand signals indicating buyer interest patterns, and a separately labeled history of value-matched transactions. Note: attribution reflects catalog association, not exclusive protocol-intent proof.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {},
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-market-intelligence-api-08ebcda8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402intel.uk](https://www.zero.xyz/host/api.x402intel.uk/llms.txt)