Directory / x402-gateway-production-1f21.up.railway.app

x402-gateway-production-1f21.up.railway.app/change

Detect meaningful webpage changes with deterministic hashes and diffs for prices, docs, policies, availability and competitor monitoring.

Price $0.001
Method GET
Protocol x402
Last probe 200
Verified 2026-10-01

Call it

# 1. Ask the endpoint what it costs (no payment, no wallet needed):
curl -i -X GET 'https://x402-gateway-production-1f21.up.railway.app/change'

# -> HTTP/1.1 402 Payment Required
#    the response carries the price, asset and pay-to address.

# 2. Pay and retry with any x402 client:
npx x402-fetch 'https://x402-gateway-production-1f21.up.railway.app/change'

Endpoint: https://x402-gateway-production-1f21.up.railway.app/change. Operated by x402-gateway-production-1f21.up.railway.app, not by Animica. Price and availability were correct at the last probe on 2026-10-01 and are set by the operator, who may change them.

Other endpoints on x402-gateway-production-1f21.up.railway.app

x402-gateway-production-1f21.up.railway.app/metadata

Extract title, description, Open Graph, Twitter cards, canonical URL, robots directives, headings, JSON-LD and other page metadata.

GET · $0.001

All 2 endpoints on x402-gateway-production-1f21.up.railway.app →