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The revenue rails for Web3 apps.

Route swaps and accept crypto on one non-custodial API. Earn on the volume you move, settled on-chain.

POST /v1/quote
// best-path quote, signed for on-chain settlement
{
  "sell": "1000 USDC", "buy": "ETH",
  "route":  "Base → Arbitrum",
  "amountOut": "0.28412",
  "rate": "3,519.81", "feeBps": 4,
  "signature": "0x9f2c…a1e7",
  "expiresIn": 30 /* seconds */
}
196ms
median quote latency
1.2M
swaps routed
$84.6M
settled volume

Route swaps. Accept crypto.

Everything to move value through your app: the aggregator as an API, and a payments layer built on top of it.

Swap & Quote API

Fee-aware routing across DEXs and chains, returned as an EIP-712 signed quote you settle on-chain. Keys, metering, and per-tier limits built in.

  • →Signed quotes with on/off-chain parity
  • →API keys, usage metering, rate limits & quotas
  • →Notional-USD accounting on every request
QuoteSwapStatusmore coming

Payments & Settlement

Issue payment links, take a direct transfer or a swap-settled payment, confirm it on-chain, fire a webhook. The customer pays any token, you receive the one you want.

Invoice #4821Base · USDC
$249.00
pay any token, we route to USDC
Pay with wallet

Turn integration into revenue.

Add your own fee on top of every swap you route, clamped and safe. We attribute on-chain volume to your payout wallet and total your earnings.

  • →Configurable partner fee per app, chain or pair
  • →On-chain attribution to your payout wallet
  • →Earnings dashboard with signed delivery webhooks
$1,807
earned, last 30 days
$1.20M
attributed volume
0.15%
your fee
3,418
swaps attributed
crypto
payout rail

Start free. Scale on volume.

A subscription unlocks higher limits and lower fee bands. Pay by card or in USDC.

Free
$0/mo
  • Rate limit5/s
  • Monthly quota10k
  • Fee band10/30 bps
  • Community support
Start free
Startup
$49/mo
  • Rate limit25/s
  • Monthly quota250k
  • Fee band7/20 bps
  • Email support
Choose Startup
Most popular
Pro
$299/mo
  • Rate limit100/s
  • Monthly quota2M
  • Fee band4/10 bps
  • Priority support
Choose Pro
Enterprise
$999/mo
  • Rate limitcustom
  • Monthly quotaunlimited
  • Fee band2/5 bps
  • SLA + dedicated
Talk to us
Billing rails: Card (Stripe) or pay in USDC

Everything in one console.

Keys, usage, billing, partners, payments, and analytics in a single dashboard.

betelgeuse.fi/dashboard
Analytics
API keys
Usage
Billing
Partners
Payments
Compliance
3,418
swap requests · 30d
$1.20M
notional · 30d
214
payments paid

Ship in an afternoon.

Documentation

REST reference, the signed-quote flow, and copy-paste snippets for every endpoint.

Read the docs →

SDK & quickstart

Typed client for quote, swap, and status. Zero to first swap, fast.

Get started →

Get help

Talk to the team. Integration support for builders shipping with Betelgeuse.

Contact support →

Questions, answered.

What can I build with the API?

Best-path swap quotes and execution across EVM chains and Solana, plus status tracking. Embed it in a wallet, aggregator, or trading flow.

How are the API and payments different?

The API routes and executes swaps. Payments sits on top: payment links, swap-settled checkout, on-chain confirmation, and webhooks.

What does "non-custodial" mean here?

We never take possession of funds. The server signs quotes. The swap or settlement is the user's own transaction, which we verify rather than initiate.

How do fees and tiers work?

A small protocol fee scales down by plan, from 10/30 bps on Free to 2/5 bps on Enterprise. Partners can add a clamped fee and earn on volume.

How do I get a key?

Sign up, create a business, and generate a key in the dashboard. Shown once, revocable anytime. Start on Free, upgrade when you need more.

Which chains are supported?

EVM chains and Solana today, with best-path routing across DEX liquidity. More networks are added over time.

Route. Accept. Earn.

One API for swaps and crypto payments. Start free in minutes.