DeFi Monitoring Proxy: Watch TVL, Prices and Front Ends by Region

Why DeFi monitors need a proxy

DeFi data sites are blocked in mainland China: GreatFire's latest test of defillama.com failed, and coingecko.com was blocked in its last test in May 2026. Analysts and protocol teams there need an exit abroad for the dashboards and APIs they watch.

Data APIs ration keyless traffic per IP. CoinGecko's documentation says requests without an API key are rate-limited per IP, with the limit shared across all users on that IP, and answered with 429 once it's exceeded. DefiLlama's free API at api.llama.fi needs no key at all: /protocols lists protocols and /tvl/{protocol} returns a protocol's current TVL.

Front ends differ by country. dApps apply regional rules to their interfaces — Polymarket, for one, documents blocked and close-only jurisdictions and returns the detected country from a geoblock endpoint. A residential IP in a country shows what users there see. The DefiLlama and CoinGecko websites answered a plain script request with 403 in our check, so look at web pages in a real browser and automate through the APIs.

• GreatFire Analyzer: defillama.com and coingecko.com from mainland China
• CoinGecko API documentation: common errors and rate limit
• DefiLlama API documentation: free endpoints
• Polymarket documentation: geographic restrictions
• Response headers of DefiLlama and CoinGecko, 18 October 2026

Recommended DeFi monitoring setup

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The “Configure DeFi monitoring proxies” button opens rotating residential proxies for the Web3 use case, billed by traffic. Buy traffic for the line you choose, then pick the region before you generate.

• Proxy302 rotating residential configuration for Web3

Which Proxy302 proxy to buy

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Prices in US dollars; you pay with PTC credit (1 PTC = US$1). Top up your wallet, then buy the line you need. Auto-renew isn't available yet, so renew static IPs in My assets before their term ends.

• Proxy302 rotating residential configuration for Web3
• Proxy302 pricing

Set up a DeFi monitoring proxy in 4 steps

1. Open the research setup

   The “Configure DeFi monitoring proxies” button opens Rotating Residential Proxies with the Web3 use case selected. Choose the Line, then under Traffic allowance click Add traffic and buy a package or enter Custom GB. Under Connection settings keep Exit mode at Choose region / sticky IP, pick the Region and Protocol, and click Review cost and generate. Generate one endpoint per country you monitor.

   Expected result Your configuration lists By traffic, Web3, Choose region / sticky IP and the region.

2. Copy the connection details

   After payment the console opens My assets. Choose View credentials on the new proxy and copy the endpoint (host:port), username and password.

3. Point the monitors at the exit

   Pass the proxy on each request in your monitor, as in the example below, and add your CoinGecko API key wherever you call CoinGecko. For front-end checks, open the protocol's app in a browser profile that uses the same endpoint.

4. Alert on data, not on one failed call

   Retry once after a timeout before alerting, and treat a 429 as a signal to slow down rather than an outage. Check the exit country with ipinfo.io before each front-end check.

   Expected result Alerts fire only on real changes in TVL or price, not on single network errors.

Monitor TVL through the proxy (DefiLlama API)

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# pip install requests
import time

import requests

PROXY = "http://USERNAME:PASSWORD@HOST:PORT"  # residential endpoint from My assets
PROXIES = {"http": PROXY, "https": PROXY}
PROTOCOLS = ["uniswap", "aave"]  # DefiLlama protocol slugs
DROP_ALERT = 0.10  # alert when TVL falls 10% between two checks

last = {}
while True:
    for slug in PROTOCOLS:
        r = requests.get(f"https://api.llama.fi/tvl/{slug}", proxies=PROXIES, timeout=30)
        if r.status_code == 429:
            time.sleep(60)
            continue
        r.raise_for_status()
        tvl = float(r.text)
        if slug in last and tvl < last[slug] * (1 - DROP_ALERT):
            print(f"ALERT {slug}: TVL fell from {last[slug]:,.0f} to {tvl:,.0f} USD")
        last[slug] = tvl
        time.sleep(2)
    time.sleep(600)  # check every 10 minutes

A small TVL monitor on DefiLlama's free API: it backs off for a minute on 429 and prints an alert when a protocol's TVL falls by the threshold between two checks. Replace the slugs with the protocols you track.

• DefiLlama API documentation: free endpoints
• Requests documentation: proxies

Quick fixes

DeFi monitoring proxy FAQ

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