DeFi

PYUSD (PayPal USD on Solana)

PayPal's USD-backed stablecoin deployed natively on Solana, fully backed by US dollar deposits, US Treasuries, and similar cash equivalents. PYUSD on Solana launched in May 2024 and uses the SPL Token program. It aims to bridge traditional payment rails with DeFi, leveraging Solana's low fees and fast settlement. PYUSD integrates with major Solana DEXs and lending protocols.

IDpyusdAliasPYUSDAliasPayPal USD

Plain meaning

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PayPal's USD-backed stablecoin deployed natively on Solana, fully backed by US dollar deposits, US Treasuries, and similar cash equivalents. PYUSD on Solana launched in May 2024 and uses the SPL Token program. It aims to bridge traditional payment rails with DeFi, leveraging Solana's low fees and fast settlement. PYUSD integrates with major Solana DEXs and lending protocols.

Mental model

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Think of it as a market mechanic used to price, route, or move capital through liquidity apps.

Technical context

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AMMs, routing, liquidity, lending, and trading infrastructure.

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PYUSD (PayPal USD on Solana) (pyusd)
Category: DeFi
Definition: PayPal's USD-backed stablecoin deployed natively on Solana, fully backed by US dollar deposits, US Treasuries, and similar cash equivalents. PYUSD on Solana launched in May 2024 and uses the SPL Token program. It aims to bridge traditional payment rails with DeFi, leveraging Solana's low fees and fast settlement. PYUSD integrates with major Solana DEXs and lending protocols.
Aliases: PYUSD, PayPal USD
Related: Stablecoin, SPL Token Program
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Concept graph

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Branch

Stablecoin

A token pegged to a stable asset, typically the US dollar. Major stablecoins on Solana include USDC (Circle, natively minted), USDT (Tether), and UXD (algorithmic). Stablecoins are critical DeFi primitives used as trading pairs, lending collateral, and yield farming. USDC on Solana uses the SPL Token program with freeze authority retained by Circle.

Branch

SPL Token Program

The original Solana Program Library token program (TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA) that implements fungible and non-fungible token operations. It manages mints (token definitions) and token accounts (balances). Core instructions include InitializeMint, MintTo, Transfer, Burn, Approve (delegation), and Revoke. All SPL tokens on mainnet before Token-2022 use this program.

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DeFi

Stablecoin

A token pegged to a stable asset, typically the US dollar. Major stablecoins on Solana include USDC (Circle, natively minted), USDT (Tether), and UXD (algorithmic). Stablecoins are critical DeFi primitives used as trading pairs, lending collateral, and yield farming. USDC on Solana uses the SPL Token program with freeze authority retained by Circle.

Token Ecosystem

SPL Token Program

The original Solana Program Library token program (TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA) that implements fungible and non-fungible token operations. It manages mints (token definitions) and token accounts (balances). Core instructions include InitializeMint, MintTo, Transfer, Burn, Approve (delegation), and Revoke. All SPL tokens on mainnet before Token-2022 use this program.

DeFi

Raydium

One of the largest DEXs on Solana, offering both constant-product AMM pools and concentrated liquidity (CLMM). Raydium's standard AMM integrates with OpenBook order books for shared liquidity. It also provides AcceleRaytor (launchpad) and farming incentives. Key pools include SOL/USDC and major token pairs.

DeFi

Pyth Network

A high-frequency oracle network publishing price feeds for crypto, equities, commodities, and FX. Pyth aggregates data from 90+ first-party publishers (market makers, exchanges) and updates prices every 400ms on Solana. Each price feed includes a price, confidence interval, and exponential moving average. Pyth uses a pull model with Hermes for cross-chain delivery.

Related terms

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DeFistablecoin

Stablecoin

A token pegged to a stable asset, typically the US dollar. Major stablecoins on Solana include USDC (Circle, natively minted), USDT (Tether), and UXD (algorithmic). Stablecoins are critical DeFi primitives used as trading pairs, lending collateral, and yield farming. USDC on Solana uses the SPL Token program with freeze authority retained by Circle.

Token Ecosystemspl-token

SPL Token Program

The original Solana Program Library token program (TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA) that implements fungible and non-fungible token operations. It manages mints (token definitions) and token accounts (balances). Core instructions include InitializeMint, MintTo, Transfer, Burn, Approve (delegation), and Revoke. All SPL tokens on mainnet before Token-2022 use this program.

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DeFi

AMM (Automated Market Maker)

A protocol that enables token swaps using algorithmic pricing against pooled liquidity instead of matching individual buyers and sellers. AMMs use mathematical formulas (typically constant product x*y=k) to determine prices based on the ratio of tokens in a liquidity pool. On Solana, major AMMs include Raydium, Orca, and Meteora.

DeFi

CLMM (Concentrated Liquidity Market Maker)

An AMM design where liquidity providers concentrate their capital within specific price ranges instead of across the full 0-to-infinity range. CLMMs dramatically improve capital efficiency—LPs earn more fees per dollar deposited within their active range. If the price moves outside the range, the position becomes inactive. Orca Whirlpools and Raydium CLMM are leading implementations on Solana.

DeFi

Liquidity Pool

A smart-contract-held reserve of two or more tokens that enables trading via an AMM. Users deposit token pairs in specified ratios to become liquidity providers and earn trading fees. Pools are identified by their token pair and fee tier. Pool depth (total value locked) determines price impact for trades.

DeFi

LP Token

A token issued to liquidity providers representing their proportional share of a pool's reserves and accrued fees. LP tokens can be burned to withdraw the underlying assets. The value of LP tokens changes as the pool's token ratios shift and fees accumulate. LP tokens are often stakeable in yield farming programs for additional rewards.