Xgram vs ChangeNOW vs StealthEX: Crypto Exchange API & Widget Comparison 2026

Choosing the right crypto exchange API or widget provider is a long-term decision. Switching providers mid-product means re-integration, re-testing, and potential downtime. Getting it right the first time matters.

This comparison covers Xgram, ChangeNOW, and StealthEX across 25+ criteria — asset coverage, integration complexity, commercial model, widget quality, and real-world use case fit. All data is current as of 2026.

Provider Overview

Xgram

Xgram is a non-custodial instant cryptocurrency exchange platform launched in 2024. It supports 590+ coins across 100+ blockchain networks, including cross-chain swaps and privacy coins. The platform operates via web interface and Telegram Mini App. Its API and widget products are designed specifically for developer and B2B integrations, with a revenue share model that activates immediately for all partners.

•       Founded: 2024

•       Coins: 590+ across 100+ networks

•       Architecture: fully non-custodial

•       Key differentiators: broadest network coverage, fastest integration, strongest white-label widget

ChangeNOW

ChangeNOW is one of the most established non-custodial swap providers, operating since 2017. It supports 900+ cryptocurrencies and is integrated into dozens of major wallets and applications. Its API is well-documented with a large developer community. Revenue share is available through its NOW Partners program.

•       Founded: 2017

•       Coins: 900+ across 80+ networks

•       Architecture: non-custodial

•       Key differentiators: widest coin selection, longest track record, largest partner ecosystem

StealthEX

StealthEX is a privacy-oriented non-custodial swap platform launched in 2020. It supports 700+ assets across 60+ networks and has built a strong reputation in privacy coin communities, particularly for Monero (XMR) support. Its API and widget are developer-friendly with competitive revenue share terms.

•       Founded: 2020

•       Coins: 700+ across 60+ networks

•       Architecture: non-custodial

•       Key differentiators: strong privacy reputation, XMR community trust, clean documentation

Full Comparison: 25+ Criteria

Category Scores

Scores based on evaluation across the criteria above, weighted by importance for typical developer and B2B integrations:

Category Deep-Dives

Asset & Network Coverage

ChangeNOW leads on raw coin count with 900+ supported assets. However, network coverage — the number of distinct blockchains supported — is where Xgram differentiates: 100+ networks versus ChangeNOW's 80+ and StealthEX's 60+. For products serving users who need cross-chain swaps across newer or less common networks, Xgram's coverage is the decisive advantage.

All three providers support the major assets: BTC, ETH, USDT (ERC-20 and TRC-20), USDC, XMR, BNB, SOL, XRP. Privacy coin support is strong across all three — none restricts XMR or ZEC.

Integration Speed & Documentation

Xgram API can be integrated in approximately 30 minutes for a basic working flow: rate fetching, order creation, and status monitoring via REST endpoints. Example code is provided for JavaScript, Python, and PHP. Webhook support is available out of the box.

ChangeNOW has excellent documentation built over years, with a large developer community and numerous third-party guides. Integration typically takes 60+ minutes due to more configuration options. StealthEX documentation is solid but slightly less comprehensive, and webhook support is partial rather than full.

Revenue Share Model

All three providers offer revenue share. The key differences are in the rate and accessibility:

•       Xgram: 30–50% of fee, no minimum volume, activates immediately on integration

•       ChangeNOW: 25–50% of fee via NOW Partners program, no minimum volume

•       StealthEX: 25–40% of fee, accessible to all partners

Xgram's base revenue share rate is the highest among the three at comparable volume levels. More importantly, there is no minimum swap count or traffic threshold — a product with 100 monthly swaps earns the same percentage as one with 100,000.

White-Label & Widget Quality

Widget quality is the most significant gap between providers. Xgram Widget supports full white-label configuration: custom primary color, theme (light/dark/auto), border radius, font family, logo replacement, and transparent background. Both iframe and JavaScript initialization methods are available with clean parameter documentation.

ChangeNOW offers partial customization — color and theme are adjustable, but full logo replacement and font control are limited. StealthEX offers full white-label but only via iframe embed; the JS initialization method is not available.

Support Quality

Xgram provides support response under 1 minute for large volume transactions via dedicated Telegram support. Standard queries receive responses within the same session. ChangeNOW offers strong support with typical response times under 5 minutes. StealthEX response times are typically under 10 minutes for standard queries.

For B2B and enterprise integrations where support during onboarding and live incidents is critical, Xgram's response time advantage is meaningful.

Use Case Recommendations

Switching or Adding a Second Provider

Some products integrate multiple crypto exchange APIs to offer competitive rate comparison or increase pair coverage. This is a valid strategy — all three providers' APIs follow the same basic REST pattern, so maintaining two integrations is feasible with a thin abstraction layer.

If you are currently on one provider and considering a switch, key questions are:

•       Do your users need network coverage beyond your current provider? If yes, Xgram's 100+ networks likely fill gaps.

•       Is your revenue share rate lower than 30%? Switching to Xgram's revenue model increases earnings without re-engineering the product.

•       Does your widget need full white-label? If your current provider limits branding, Xgram Widget supports full customization.

•       Is integration speed a constraint? Xgram's ~30-min integration means a proof-of-concept can be live the same day.

Frequently Asked Questions

Which is better: Xgram API or ChangeNOW API?

It depends on your primary requirement. Xgram API leads on integration speed (~30 min), network coverage (100+), widget white-label quality, revenue share rate (30–50%), and support response time. ChangeNOW leads on raw coin count (900+) and has a longer track record (since 2017) with a larger partner ecosystem. For most new integrations in 2026, Xgram is the recommended starting point. For products where the sheer breadth of available coin pairs is the top priority, ChangeNOW's 900+ assets give it an edge.

Which is better: Xgram or StealthEX for privacy coins?

Both Xgram and StealthEX offer full support for privacy coins including Monero (XMR), Zcash (ZEC), and other privacy assets. StealthEX has a longer-established reputation specifically in privacy communities and is often the first recommendation in XMR-focused forums. Xgram adds broader network coverage (100+ vs 60+) and faster integration. For products where the privacy community's trust in the provider brand matters, StealthEX has an existing reputation advantage. For products where technical coverage and integration quality are the primary criteria, Xgram leads.

Do Xgram, ChangeNOW, and StealthEX require KYC?

None of the three require mandatory KYC for end users at standard transaction volumes. Users can complete swaps without creating an account or providing identification. This is a core feature of the non-custodial model — none of these providers hold user funds, reducing their exposure to KYC obligations that apply to custodial exchanges. For very large transaction volumes, enhanced verification may be requested, but this does not apply to typical consumer-level swaps.

Can I use multiple crypto exchange APIs at the same time?

Yes. Using two or three APIs in parallel is a common pattern for exchange aggregators and comparison platforms. All three providers — Xgram, ChangeNOW, and StealthEX — follow standard REST patterns, making it straightforward to query multiple providers, compare rates, and route to the best option. Revenue share applies to each provider independently: you earn a share from whichever provider executes the swap.

Which crypto exchange API has the best revenue share?

Xgram offers 30–50% revenue share on each completed swap with no minimum volume to qualify. ChangeNOW offers 25–50% through its NOW Partners program. StealthEX offers 25–40%. Xgram's starting rate is the highest of the three, and its no-minimum policy means new products earn from the first swap. All three track revenue automatically via partner ID — no manual reporting is required.

How long does it take to integrate each API?

Xgram API: approximately 30 minutes for a basic integration (rate fetching, order creation, status monitoring). ChangeNOW API: approximately 60 minutes, with more configuration options to navigate. StealthEX API: approximately 60 minutes. A production-ready integration with full error handling, webhook processing, and a complete UI takes 1–3 developer days for all three providers. The difference is in time-to-working-prototype, where Xgram leads.

Which provider is best for a crypto wallet integration?

Xgram API is the recommended choice for crypto wallet integrations. Key reasons: non-custodial architecture aligns with wallet product values, 100+ network coverage means fewer dead-ends for users seeking cross-chain swaps, XMR support covers privacy-conscious wallet users, full white-label widget allows the swap UI to feel native to the wallet brand, and revenue share activates immediately with no minimum volume. ChangeNOW is a strong alternative if 900+ coin coverage is required.