Resell 4G & 5G Mobile Proxies
on Real Dedicated Devices
White-label reseller program for agencies, SaaS platforms, and proxy resellers.
Build your own mobile proxy brand on Coronium infrastructure. Real 4G/5G dedicated devices in 20+ countries, white-label API with per-port custom credentials, USDC top-up with no Stripe fees, atomic stock-aware buying, and prorated cancel — all on a prepaid balance with no monthly commitment.
Fastest channel for reseller onboarding, custom contracts, and Enterprise rate-limit pools is Telegram @coroniumio.
What you get out of the box
proxy_login / proxy_password per port — Coronium never appears in your customer's connection.Six pillars built specifically for the reseller workflow
Coronium was designed from the ground up as a reseller-friendly proxy backend, not as a B2C product with reseller features bolted on. Every endpoint, every billing primitive, and every operational guarantee is shaped by the realities of selling mobile proxies to your own end-customers.
Real dedicated mobile devices
Every port resolves to a physical 4G/5G modem with a real carrier SIM. No virtualization, no shared residential pools, no datacenter shortcuts. Your customers get authentic mobile IPs that platforms recognize as legitimate users.
Reseller API built for resale
Bearer-token auth, REST endpoints to buy, renew, rotate, replace, cancel and release modems. Freeform metadata field travels with each port so you can map our modem_id to your end-customer ID without a sidecar database.
White-label by default
Set per-port custom proxy login and password. Hand end-customers token-based rotation URLs they can reverse-proxy behind your domain. Coronium branding never appears in the proxy connection your customer makes.
Crypto-native economics
Top up your prepaid balance via USDC (Base), USDT (TRC-20), BTC, or CoinGate. No Stripe processing fees, no FX, 1–3 second settlement on USDC. Optional Stripe card-on-file when your end-customer pays you in fiat.
Atomic stock-aware buying
Hit /tariffs/available or /free-modems before charging. The buy endpoint is all-or-nothing — if you ask for 5 modems and only 4 are free at debit time, you get a clean 410 with no charge. No partial fills, no orphaned debits to reconcile.
Operational guardrails
Server-side rotation auto-retry handles sticky-carrier same-IP returns. Replacement credits bake bad-modem swaps into the price. Prorated cancel refunds unused days to balance. Rate limits scale automatically with volume.
Reseller API quickstart
Everything below is a real call against api.coronium.io/api/v3. There is no separate sandbox — provision a single $5 modem first if you want to smoke-test the integration without commitment.
# 1. Authenticate (one-time)
TOKEN=$(curl -sS https://api.coronium.io/api/v3/get-token \
-H 'content-type: application/json' \
-d '{"login":"you@example.com","password":"..."}' \
| jq -r .token)
# 2. Find an in-stock tariff (e.g. US T-Mobile 5G, 30-day)
TARIFF=$(curl -sS https://api.coronium.io/api/v3/tariffs/available \
| jq -r '.data[] | select(
.country.country_code=="US" and
.carrier.name=="T-Mobile" and
.period==30) | ._id')
# 3. Provision against your prepaid USDC balance
curl -sS https://api.coronium.io/api/v3/payment/buy-modems-with-crypto-balance \
-H "Authorization: Bearer $TOKEN" \
-H 'content-type: application/json' \
-d '{
"tariff_id":"'"$TARIFF"'",
"modemCount":1,
"metadata":{"customer_id":"acme-007"}
}'
# 4. Read live ports + credentials for your dashboard
curl -sS https://api.coronium.io/api/v3/account/proxies \
-H "Authorization: Bearer $TOKEN"
# 5. Rotate the IP from your customer's automation
curl -sS -XPOST \
https://api.coronium.io/api/v3/modems/<modem_id>/restart \
-H "Authorization: Bearer $TOKEN"The metadata field is freeform JSON that travels with each modem record and is returned in /account/proxies. Use it as your customer-mapping layer — you never need a sidecar database to map our modem_id to your end-customer.
Endpoint groups
- Public: signup, get-token, /countries, /tariffs, /tariffs/available, /free-modems, token-rotation URLs.
- Account: /account, /account/proxies, /account/crypto-balance, saved cards.
- Payments: buy / renew with crypto balance, USD account credit, or Stripe card-on-file.
- Per-modem: restart, rotation-status, test, replace, cancel, set-rotation-interval, set-os, change-password, set-metadata, openvpn.
- Tickets: list, open, reply, archive for support escalation under your reseller account.
Production rate limits
- Auth: 30 / 5 min / IP
- Read: 600 / 5 min / token
- Write: 120 / 5 min / token
- Rotation: 1 / 60s per modem
- OS spoof: 1 / 5 min per modem
Enterprise tier gets a dedicated rate-limit pool — your traffic does not share quotas with retail customers.
Coronium never appears in your customer's proxy connection
Resell under your own brand without standing up your own modem fleet. The host is a raw IP:port with no coronium substring, the credentials are whatever you set, and the rotation URL can be reverse-proxied behind your own domain.
Per-port proxy login & password
PUT /modems/{id}/change-password sets whatever credentials your customer expects. They connect with acme_user_007:their-secret@host:port and never see Coronium credentials in their stack.
IP whitelist authentication
Customers who prefer passwordless auth get IP-based whitelisting — register their static egress IPs and they connect from those addresses without credentials at all.
Token-based rotation URLs
Each modem has a permanent rotation token. Hand the URL to your customer's automation script — they hit it without auth, your reseller token is never exposed. Reverse-proxy it behind your own domain (rotate.your-brand.io/{token}) and the Coronium origin disappears.
OpenVPN profiles for VPN customers
Download per-port .ovpn profiles from /modems/{id}/openvpn. They contain only IP, port, and auth — no Coronium branding inside the file. Distribute as your own VPN service if your offering is VPN-shaped.
OS TCP fingerprint spoofing per port
PUT /modems/{id}/set-os aligns the underlying TCP fingerprint with the user-agent your customer is sending. Pick from android:3, ios:2, macosx:4, windows:1 and avoid the "Linux server pretending to be iPhone" tell on TikTok and Instagram.
Honest white-label limits
Expiry emails currently come from support@coronium.io. To suppress, tag the modem with metadata.suppress_emails: true and own end-customer comms yourself. End-customers cannot open tickets directly against Coronium — you triage and escalate via /tickets.
Volume pricing · no monthly commitment
You only pay for what you actually provision. Top up your USDC balance once, draw down as your customers convert. Unused balance carries forward indefinitely. Tiers below are indicative — final numbers are confirmed in your reseller contract.
Starter
Solo resellers, agencies running 10–50 client ports, one-person SaaS founders proving demand.
Growth
Established proxy resellers, growth-stage SaaS, agencies with predictable client churn and multi-country mix.
Scale
Mid-tier proxy brands, scraping platforms with mobile-IP product lines, multi-region resellers.
Enterprise
Direct contract pricing, dedicated rate-limit pool, custom replacement-credit allocation, partner manager on Telegram + email.
Crypto-friendly funding
Top up via USDC (Base, 1–3s settlement, no fees), USDT (TRC-20), BTC, or CoinGate. Effectively a 2–3% discount versus card top-up at scale because there are no Stripe processing fees and no FX.
Replacement credits included
Each tariff comes with a baseline of replacement credits (3–5 per port per month at lower tiers, 10+ at higher tiers, unlimited at Enterprise). Bad modems swap for fresh ones in seconds without a recharge.
Prorated cancel · refund to balance
Customer churns mid-cycle? Cancel the modem and the unused portion of the tariff is refunded to your USD balance. Re-spend it immediately on a different SKU — your customer's trial cost is never wasted.
Sell mobile proxies in 20+ countries on real carriers
Live, real-time coverage is exposed via GET /api/v3/countries. Use it to power your storefront so your end-customers never click “Buy” on a sold-out SKU. A condensed snapshot of the most common reseller geos is below.
| Region | 5G carriers | 4G carriers | Reseller note |
|---|---|---|---|
| 🇺🇸United States | T-Mobile, Verizon | T-Mobile, Verizon | Largest 5G fleet — strong for TikTok, Instagram, US scraping. |
| 🇬🇧United Kingdom | EE, Vodafone | EE, Vodafone, O2, Three | OS-spoof not supported on Three (carrier rewrites TCP). |
| 🇫🇷France | Free Mobile, Orange | Bouygues, SFR | Free Mobile occasionally returns same-IP — auto-retry handles it. |
| 🇩🇪Germany | Vodafone, T-Mobile | Vodafone, T-Mobile, O2 | High-volume EU SKU; popular for ad verification + e-commerce. |
| 🇪🇸Spain | Vodafone | Movistar, Vodafone, Yoigo | Solid choice for South-EU social media operations. |
| 🇵🇱Poland | T-Mobile, Plus | T-Mobile, Play, Plus, Orange | Multiple farmer servers; cost-efficient EU coverage. |
| 🇳🇱Netherlands | KPN | KPN, Vodafone | Stable fleet; popular for QA and SaaS testing. |
| 🇦🇺Australia | Telstra | Telstra | Limited supply — pre-flight stock checks recommended. |
| 🇳🇿New Zealand | One NZ | One NZ | Pair with AU for trans-Tasman customer accounts. |
| 🇺🇦Ukraine | Vodafone, Lifecell | Kyivstar, Vodafone | Cost-efficient; popular for SEO + scraping. |
| 🇬🇪Georgia | Magti | Magti | Eurasian gateway; useful for niche geo-targeting. |
| 🇸🇬Singapore | Singtel | Singtel | APAC pivot point for finance / SEA accounts. |
Country coverage drifts as carrier relationships evolve — the API is always the source of truth. Browse all current locations on the marketplace, or check live pool status before quoting a customer.
The unsexy machinery that keeps your customers happy
Reseller economics break the moment a flagship customer's scraper sees a same-IP rotation, or an end-customer can't cancel mid-trial. These are the features that shape your ticket volume more than any datasheet.
Server-side rotation auto-retry
Mobile carriers occasionally return the same IP after a rotation request — a known carrier behavior, not a bug. Without server-side handling, your customer sees old_ip == new_ip and has to write polling logic.
When you call /restart, the rotation worker resets the modem, compares old vs. new external IP, waits 15s, retries up to 3 times, then returns success or a clear same_ip_after_retries signal. No silent failures, no client-side polling loops to write.
Replacement flow for flagged modems
End-customer reports their proxy is dead, banned, or unusable? Hit POST /modems/{id}/replace. The bad modem moves to a quarantine account (it never returns to the free pool — protects every reseller), and a fresh modem in the same country and carrier is allocated.
Same tariff_expired_at carries over (no time lost). Same custom credentials persist (your customer only updates the IP). Replacement counter decrements. Competitors charge customers for each swap; we pre-allocate the budget per tariff so it's transparent.
Per-port OS TCP fingerprint spoofing
Mobile proxies get flagged faster on TikTok and Instagram when the underlying TCP fingerprint says “Linux server” but the user-agent says “iPhone.” We let you align them per port via PUT /modems/{id}/set-os.
Accepted values include android:3 (real Android), ios:2 (real iPhone), macosx:4 (macOS / iPhone 13 Pro Max), windows:1. Rate-limited to 1 change per 5 min per port. Carrier exception: not effective on Three UK or AT&T USA — those carriers rewrite TCP at the network layer.
Atomic stock-aware purchasing
Pre-flight your customer's checkout: hit /api/v3/free-modems?country_id=&carrier_id= to see live free-modem counts per country and carrier before you charge them. Or hit /tariffs/available to filter to only SKUs with at least one live modem.
The buy endpoint is all-or-nothing. Ask for modemCount: 5 and only 4 are available at debit time? You get 410 stock_exhausted with zero charge. No partial fills. Combine with Idempotency-Key to handle retries on flaky networks without double-charging.
Who actually resells Coronium mobile proxies
Six concrete personas we onboard most weeks — if you fit one of these, the program is built for you. If you don't fit any of them, message @coroniumio on Telegram anyway and we'll tell you honestly whether the model works for your case.
Agencies running client mobile proxies
Manage 20–500 client ports across countries from one reseller account. Tag each modem with metadata.customer_id and read it back in /account/proxies — your client dashboard is one view away.
SaaS platforms embedding mobile proxies
Scraping platforms, social media schedulers, ad-verification tools — anything that needs trusted mobile IPs as a feature, not a manual setup. Bearer auth, per-port credentials, idempotent buys.
Established proxy resellers diversifying
Already selling residential or datacenter? Add real 4G/5G mobile as a premium tier. The reseller backend is purpose-built so your operational load stays roughly flat as you bolt on a new product line.
AI agent infrastructure providers
Build proxy-as-a-feature for your Browser Use, Browserbase, or Claude Computer Use customers. MCP server integration is on the roadmap; today, embed our REST API behind your own MCP layer.
Crypto-native operators
Sell mobile proxies for airdrop farming, multi-wallet operations, and Sybil-safe DeFi flows. Top up in USDC, charge end-customers in whatever stable they prefer, settle on-chain.
Hardware operators offloading capex
Considering buying your own modems? Look at /buy-hardware and /create-proxies first to compare. Many operators end up reselling Coronium ports first to validate demand, then switching some volume to owned hardware later.
Save your sales conversations from broken expectations
We'd rather lose a deal up-front than ship surprise gaps mid-integration. Here is what is genuinely not in scope today.
No sub-account / multi-tenant API
One reseller account = one bearer token. If you need to silo your end-customers' visibility, build it in your own app layer (this is the common path).
No SOC2 / ISO27001 yet
We have not pursued these certifications. We are happy to share internal security policies if your enterprise prospect asks during procurement.
No per-port bandwidth quotas via API
Possible at the underlying daemon level, not yet exposed in v3. Roadmap. Today, you enforce bandwidth contracts in your own application logic.
No datacenter / residential pools
We are exclusively mobile (4G/5G/LTE). If your customer needs datacenter or residential IPs, Coronium is not the right vendor — be straight with them and route them elsewhere.
No static IP retention beyond modem expiry
Sticky sessions hold as long as you don't rotate. After the tariff expires, the IP is recycled. Plan renewals if your customer needs the same IP next month.
No country-specific data residency
Proxies route through farmer servers in their respective countries; metadata and auth are centralized in EU (Hetzner). If your enterprise prospect demands per-country residency for control-plane data, flag it early.
Twelve questions every prospective reseller asks
Direct answers, no fluff. If yours isn't here, ping @coroniumio.
Other pages worth knowing about as a reseller
Adjacent infrastructure pages, alternative monetization paths, and pillar guides you can hand to your end-customers as docs.
Coronium Service Core
Managed dedicated 4G device rental — the underlying infrastructure resellers build on.
Buy Hardware
Pre-configured 4G/5G modems and routers if you eventually want to own physical hardware alongside reselling.
Setup Software
Self-hosted ProxySmart-compatible management software for resellers who want to run their own farmer servers.
Affiliate Program
Lighter-touch alternative — earn 20% commission for referring customers who buy directly, without an API integration.
For AI Agents
Machine-readable service spec your AI-agent customers can consume; useful when reselling to AI-infra buyers.
MCP Server
Coronium MCP integration that lets AI-agent end-customers plug your proxies into Claude Code and Cursor.
Mobile Proxies marketplace
Public-facing country and use-case catalog — handy reference when scoping which SKUs to expose in your own storefront.
IP Pool Status
Live availability dashboard — useful for sanity-checking stock before quoting larger reseller orders.
Reseller business launch playbook
8-week zero-to-first-paying-customer timeline, three business models compared, ~50-line API integration spine, marketing channel ranking.
Bulk pricing & volume tier math
Per-port vs per-Gb economics, four-tier discount ladder with worked margin examples, replacement-credit value, churn drag, USDC vs Stripe.
Airdrop Farming Proxy Guide
Pillar post for the crypto-farming reseller persona — pair with the Sybil defense and MetaMask multi-wallet guides.
AI Crawler War 2026
Pillar post for AI-agent reseller persona — frames the market your customers are buying into.
Web Parsing with 4G Proxies
Technical deep-dive resellers can hand to scraping customers as a primer on why mobile beats datacenter.
Glossary
Shared vocabulary — link from your own docs when explaining concepts like CGNAT, sticky sessions, OS spoof to end-customers.
Resell mobile proxies on Coronium — talk to a partner manager today
Telegram is the fastest channel for reseller onboarding, custom contracts, Enterprise rate-limit pools, and country-specific volume conversations. Most resellers are activated within 24 hours of the first message. Email works too — slower, but better for paper trails.