<!--
Sitemap:
- [Overview](/index): Introducing Parallel
- [Products](/introduction/products): Stablecoins & Savings
- [Use Cases](/introduction/use-cases): Concrete use cases of Parallel
- [Parallel V3](/products/parallel-v3/): Parallel V3 is a stablecoins protocol allowing the creation of decentralized, capital-efficient and over-collateralized stablecoins built using a modular & upg…
- [How It Works](/products/parallel-v3/how-it-works/): Parallel V3 is designed as a modular and scalable system where each functional component exists as an independent module. These modules can be deployed, upgrad…
- [Parallelizer Module](/products/parallel-v3/how-it-works/parallelizer-module): Explaining the Parallelizer Module
- [Savings Module](/products/parallel-v3/how-it-works/savings-module): The Parallel Savings Module is what allows Parallel stablecoin holders to earn a native yield based on the returns generated by the protocol on its assets back…
- [Bridging Module](/products/parallel-v3/how-it-works/bridging-module): The Bridging Module is entirely based on the Parallel V2 [Bridging Module](/products/parallel-v2/how-it-works/bridging-module), which is live on Ethereum, Poly…
- [Flashloan Module](/products/parallel-v3/how-it-works/flashloan-module): Flash loans (also called One Block Borrows) are special transactions that allow the borrowing of an asset, as long as the borrowed amount (and a fee) is return…
- [Stablecoins & Savings](/products/parallel-v3/stablecoins-and-savings/): Introducing Parallel Stablecoins
- [USDp & sUSDp](/products/parallel-v3/stablecoins-and-savings/usdp-and-susdp/)
- [Implementation](/products/parallel-v3/stablecoins-and-savings/usdp-and-susdp/implementation): Detailing current USDp production implementation
- [Fee Distribution](/products/parallel-v3/stablecoins-and-savings/usdp-and-susdp/fee-distribution): Parallel V3 generated fees by the USDp codebase are distributed as follow:
- [Governance](/products/parallel-v3/governance): While the main functionalities of Parallel V3 can work autonomously with no governance involved, Parallel V3 is not a governance-free protocol and is controlle…
- [Licensing](/products/parallel-v3/licensing): Parallel V3 is divided into 3 different repositories, each with different licenses:
- [Parallel V2](/products/parallel-v2/): Parallel V2 is a decentralized protocol that issues stablecoins, the € stablecoin ([PAR](https://docs.parallel.best/parallel-protocol/parallel-v2/par)) and the…
- [Stablecoins](/products/parallel-v2/stablecoins/): Parallel V2 Stablecoins
- [PAR](/products/parallel-v2/stablecoins/par/): **Token Symbol:** PAR
- [How does PAR work?](/products/parallel-v2/stablecoins/par/how-does-par-work)
- [Where can I get PAR ?](/products/parallel-v2/stablecoins/par/where-can-i-get-par)
- [paUSD](/products/parallel-v2/stablecoins/par-1/): paUSD is a USD stablecoin backed by collaterals, and can only be minted with governance-approved collaterals. paUSD are created when users deposit accepted tok…
- [How does paUSD work?](/products/parallel-v2/stablecoins/par-1/how-does-pausd-work)
- [Where can I get paUSD ?](/products/parallel-v2/stablecoins/par-1/where-can-i-get-pausd)
- [How It Works](/products/parallel-v2/how-it-works/)
- [Classic Vaults](/products/parallel-v2/how-it-works/vaults/): The core of the Parallel Protocol are **Vaults**. Users mint **PAR/paUSD** by depositing **collateral** such as Ether (ETH) into the Vault smart contract. The…
- [Depositing](/products/parallel-v2/how-it-works/vaults/depositing): The first step to start interacting with the Mimo protocol is to create a Vault and deposit collateral. Increasing the amount of collateral deposited increases…
- [Borrowing](/products/parallel-v2/how-it-works/vaults/borrowing): Borrowers can repay or borrow more PAR/paUSD at any time, within the limits of the MCR. Borrowing alters the total supply of outstanding PAR/paUSD. When one bo…
- [Fees](/products/parallel-v2/how-it-works/vaults/fees/): The Parallel Protocol is generating revenues by taking fees on minted PAR/paUSD and distribute them to various actors. You can learn more:
- [Fees Generation](/products/parallel-v2/how-it-works/vaults/fees/fees-generation): The Parallel Protocol is generating revenues by taking fees on minted PAR/paUSD. These fees are called "Origination Fee" and "Borrowing Fee".
- [Withdrawing](/products/parallel-v2/how-it-works/vaults/withdrawing): Withdrawing involves redeeming PAR/paUSD for the underlying collateral. When redeemed, the system burns PAR/paUSD tokens to repay a vault’s debt. This debt inc…
- [Repaying](/products/parallel-v2/how-it-works/vaults/repaying): Vault owners are recommended to keep their collateral ratios well above the MCR and LR to avoid liquidations despite collateral price changes. One way to maint…
- [Liquidating](/products/parallel-v2/how-it-works/vaults/liquidating): Liquidation ensures that there is always sufficient collateral to cover all PAR/paUSD tokens. Vaults below a specified health factor are subject to liquidation…
- [Bridging Module](/products/parallel-v2/how-it-works/bridging-module/): Tunnel, the Parallel bridging module is a secure, scalable, and decentralized bridging infrastructure which enable seamless transfer of PAR and paUSD between s…
- [LayerZero Infrastructure](/products/parallel-v2/how-it-works/bridging-module/layerzero-infrastructure)
- [Specifications](/products/parallel-v2/how-it-works/bridging-module/specifications)
- [Implementation](/products/parallel-v2/how-it-works/bridging-module/implementation/): The currently voted implementation of the PAR & paUSD bridging modules can be found here:
- [PAR](/products/parallel-v2/how-it-works/bridging-module/implementation/par)
- [paUSD](/products/parallel-v2/how-it-works/bridging-module/implementation/pausd)
- [Super Vaults (SV)](/products/parallel-v2/how-it-works/super-vaults-sv/): Super Vaults are a versatile tool for managing positions in changing markets. For example, if you're initially very bullish on an asset like wETH, you can use…
- [Leveraging](/products/parallel-v2/how-it-works/super-vaults-sv/leveraging): SuperVaults allow for leveraging assets without any additional capital.
- [Rebalancing](/products/parallel-v2/how-it-works/super-vaults-sv/rebalancing): In addition to leveraging, SuperVaults also allow for rebalancing vaults to use another collateral without requiring any additional capital.
- [EmptyVault](/products/parallel-v2/how-it-works/super-vaults-sv/emptyvault): The `emptyVault` feature can be used to once we are done using a vault for a specific collateral and we wish to repay all debts for the collateral and withdraw…
- [Automated Rebalance](/products/parallel-v2/how-it-works/super-vaults-sv/automated-rebalance)
- [Managed Rebalance](/products/parallel-v2/how-it-works/super-vaults-sv/managed-rebalance): The automated vault system is designed to provide users with confidence in each automated rebalance, ensuring that rebalances are done in a sensible manner and…
- [Licensing](/products/parallel-v2/licensing): Parallel V2 is licensed under MIT license. Basically, you can do whatever you want as long as you include the original copyright and license notice in any copy…
- [Proof of Solvency](/security/proof-of-solvency): Parallel V3 Proof of Solvency
- [Parallel Emergency Guardians](/security/parallel-emergency-guardians): As the protocol is deployed on 16 chains and brings a major innovation in the ecosystem, it is possible that, despite different audits, a minor or major proble…
- [Hypernative](/security/hypernative): As the protocol is deployed on 16 chains and brings a major innovation in the ecosystem, it is possible that, despite different audits, a minor or major proble…
- [Keepers](/security/keepers): Role and responsibilities of Keepers in maintaining Parallel V3 protocol operations
- [Bug Bounty Program](/security/bug-bounty-program): Introduced & approved by the DAO in [PGP-28 l Immunefi Bug Bounty Program](https://gov.parallel.best/t/pgp-28-l-immunefi-bug-bounty-program/478), the Parallel…
- [Insurance Fund](/security/insurance-fund): Detailing the coverage and strategy of the Parallel Insurance Fund
- [Audits](/security/audits): A breakdown of security reviews covering deployed smart contracts of Parallel
- [Parallel Governance Token (PRL)](/governance/parallel-governance-token-prl/): PRL is the governance token of the Parallel Protocol, which is a DAO-governed protocol. Changes are made through proposals and voted by stakers of the PRL toke…
- [Issuance](/governance/parallel-governance-token-prl/issuance): Understanding the PRL issuance process
- [Bridging Module](/governance/parallel-governance-token-prl/bridging-module/): The PRL bridging module is a secure, scalable, and decentralized bridging infrastructure which enable seamless transfer of PRL between supported chains. The mo…
- [Specifications](/governance/parallel-governance-token-prl/bridging-module/specifications): PRL Bridging Module Specifications
- [Implementation](/governance/parallel-governance-token-prl/bridging-module/implementation): PRL Bridging Module Implementation
- [Tokenomics](/governance/parallel-governance-token-prl/tokenomics/): The new Parallel protocol tokenomics is a complete overhaul of the way PRL is involved in the economic and social operations of the protocol, with the aim of a…
- [Epoch Concept](/governance/parallel-governance-token-prl/tokenomics/epoch-concept): The epoch will serve as the central unit of time in the new tokenomics. An epoch consists of a number of 30 days. It will be used to determine the [ParaBoost](…
- [Staking Mechanisms](/governance/parallel-governance-token-prl/tokenomics/staking-mechanisms): PRL holders have the option to stake their tokens in 2 different forms: sPRL1, single PRL staking; and sPRL2, PRL/wETH 80/20 BPT staking. Each option allows ho…
- [ParaBoost](/governance/parallel-governance-token-prl/tokenomics/paraboost): Parallel Boost (ParaBoost) is a concept that distributes fees to PRL stakers who generate the most positive externalities that benefit the protocol.
- [Fee Distribution](/governance/parallel-governance-token-prl/tokenomics/fee-distribution): One of the major innovations implemented with the PRL new tokenomics is the redistribution of a portion of the fees generated by the protocol to [PRL stakers](…
- [Governance](/governance/parallel-governance-token-prl/governance): sPRL1 and sPRL2 holders have voting power in the Parallel governance, calculated via the ParaBoost of the previous epoch. To learn more about Governance Proces…
- [MIMO to PRL Migration](/governance/parallel-governance-token-prl/mimo-to-prl-migration): On April 18th 2025 the DAO approved a migration of the MIMO Token (the previous governance token of the Parallel Protocol) for a new token, PRL.
- [sPRL and Voting Power](/governance/sprl): Understanding how to participate in the DAO.
- [Governance Process](/governance/governance-process): The Parallel Protocol is controlled by sPRL token holders who vote on off-chain proposals (on Parallel [Snapshot](https://vote.parallel.best/#/)) that govern t…
- [Proposal Framework](/governance/proposal-framework/): With the recent Parallel Governance Framework Proposal [update](https://gov.parallel.best/t/mip-29-l-update-the-governance-framework/384), the Parallel protoco…
- [Parallel Integration Request (PIR)](/governance/proposal-framework/parallel-integration-request-pir): Explaining Parallel Integration Request
- [Parallel Governance Proposal (PGP)](/governance/proposal-framework/parallel-governance-proposal-pgp): Explaining Parallel Governance Proposal
- [Parallel Improvement Protocol (PIP)](/governance/proposal-framework/parallel-improvement-protocol-pip): Explaining Parallel Improvement Protocol
- [DAO Multisigs](/governance/dao-multisigs/): DAO multisigs controls several functions of the protocol including the treasury, protocol parameters and the blog. The DAO multisig will require 5/8 signatures…
- [DAO Multisigs Elections](/governance/dao-multisigs/dao-multisigs-elections/): Multisigs DAO signers are elected every 6 months. Find out about previous elections here:
- [Election 1](/governance/dao-multisigs/dao-multisigs-elections/election-1): Discussion: [MIP-1┃DAO Multisig Election 1 ](https://gov.parallel.best/t/mip-1-dao-multisig-election-1/157)\ Vote: [Snapshot](https://vote.parallel.best/#/prop…
- [Election 2](/governance/dao-multisigs/dao-multisigs-elections/election-2): Discussion: [MIP-10┃DAO Multisig Election 2](https://gov.parallel.best/t/mip-10-dao-multisig-election-2/215)\ Vote: [Snapshot](https://vote.parallel.best/#/pro…
- [Election 3](/governance/dao-multisigs/dao-multisigs-elections/election-3): Discussion: [MIP-15┃DAO Multisig Election 3](https://gov.parallel.best/t/mip-15-dao-multisig-election-3/279)\ Vote: [Snapshot](https://vote.parallel.best/#/pro…
- [Election 4](/governance/dao-multisigs/dao-multisigs-elections/election-4): Discussion: [MIP-18┃DAO Multisig Election 4](https://gov.parallel.best/t/mip-18-dao-multisig-election-4/312)\ Vote: [Snapshot](https://vote.parallel.best/#/pro…
- [Election 5](/governance/dao-multisigs/dao-multisigs-elections/election-5): Discussion: [MIP-26 l DAO Multisig Election 5](https://gov.parallel.best/t/mip-26-l-dao-multisig-election-5/361)\ Vote: [Snapshot](https://vote.parallel.best/#…
- [Election 6](/governance/dao-multisigs/dao-multisigs-elections/election-6): Discussion: [PIP-38 l DAO Multisig Election 6](https://gov.parallel.best/t/pip-38-l-dao-multisig-election-6/423)\ Vote: [Snapshot](https://vote.parallel.best/#…
- [Election 7](/governance/dao-multisigs/dao-multisigs-elections/election-7): Discussion: [PIP-49 l DAO Multisig Election 7](https://gov.parallel.best/t/pip-49-l-dao-multisig-election-7/470)\ Vote: [Snapshot](https://vote.parallel.best/#…
- [Election 8](/governance/dao-multisigs/dao-multisigs-elections/election-8): Discussion: [PIP-53 l DAO Multisig Election 8](https://gov.parallel.best/t/pip-53-l-dao-multisig-election-8/498)\ Vote: [Snapshot](https://vote.parallel.best/#…
- [DAO Treasury](/governance/dao-treasury/)
- [DAO Treasury Reports](/governance/dao-treasury/dao-treasury-reports): :::warning 1. The August 2025 DAO Treasury Report doesn't count the value of 249,991 USDp. Thus the real DAO Treasury value is \$1,190,486. 2. The October 2025…
- [Introduction](/developers-hub/developers-guide): Coming Soon ([https://github.com/orgs/parallel-protocol/repositories](https://github.com/orgs/parallel-protocol/repositories))
- [Parallel Governance Token (PRL)](/developers-hub/parallel-governance-token-prl/)
- [Tokenomics](/developers-hub/parallel-governance-token-prl/tokenomics/)
- [Key Operations Flows](/developers-hub/parallel-governance-token-prl/tokenomics/key-operations-flows)
- [Contracts](/developers-hub/parallel-governance-token-prl/tokenomics/contracts)
- [Parallel V3](/developers-hub/parallel-v3/)
- [Parallelizer Module](/developers-hub/parallel-v3/parallelizer-module): :::warning Known Issue:
- [Savings Module](/developers-hub/parallel-v3/savings-module)
- [Flashloan Module](/developers-hub/parallel-v3/flashloan-module)
- [Bridging Module](/developers-hub/parallel-v3/bridging-module)
- [Onchain Tools](/developers-hub/parallel-v3/onchain-tools/)
- [Oracles](/developers-hub/parallel-v3/onchain-tools/oracles/): Explore Parallel price feeds deployed by third party protocols.
- [DIA](/developers-hub/parallel-v3/onchain-tools/oracles/dia/): Following the approval of [PGP-34 l Launch Parallel Stablecoins Price Feeds using DIA](https://gov.parallel.best/t/pgp-34-l-launch-parallel-stablecoins-price-f…
- [Fundamental](/developers-hub/parallel-v3/onchain-tools/oracles/dia/fundamental): More details on Fundamental DIA Oracles
- [Market](/developers-hub/parallel-v3/onchain-tools/oracles/dia/market): More details on Market DIA Oracles
- [RedStone](/developers-hub/parallel-v3/onchain-tools/oracles/redstone/): Following the approval of [PGP-33 l Launch Parallel Stablecoins Price Feeds using Redstone](https://gov.parallel.best/t/pgp-33-l-launch-parallel-stablecoins-pr…
- [Fundamental](/developers-hub/parallel-v3/onchain-tools/oracles/redstone/fundamental): More details on Fundamental RedStone Oracles
- [Offchain Tools](/developers-hub/parallel-v3/offchain-tools/)
- [Subgraphs](/developers-hub/parallel-v3/offchain-tools/subgraphs): Detailing the list of available subgraphs.
- [Dune](/developers-hub/parallel-v3/offchain-tools/dune): Coming soon
- [Build on Parallel](/developers-hub/parallel-v3/build-on-parallel/): The goal of these guides is to help developers, such as third-party protocols, arbitrageurs or keepers; understand and build on-top of Parallel.
- [Parallelizer Module Integration](/developers-hub/parallel-v3/build-on-parallel/parallelizer-module-integration): The Parallelizer module serves as the core minting and burning engine for Parallel stablecoins.
- [Savings Module Integration](/developers-hub/parallel-v3/build-on-parallel/savings-module-integration): The Savings module provides a yield-bearing vault system built on the ERC4626 standard, allowing users to deposit Parallel stablecoins and earn interest throug…
- [Flashloan Module Integration](/developers-hub/parallel-v3/build-on-parallel/flashloan-module-integration): The Flashloan module serves as the core minting and burning engine for Parallel stablecoins.
- [Parallel V2](/developers-hub/parallel-v2/)
- [Classic Vaults](/developers-hub/parallel-v2/classic-vaults/): The Parallel Protocol's classic vaults smart contracts are open source on Github:
- [Architecture](/developers-hub/parallel-v2/classic-vaults/architecture): ​The Parallel Protocol is a collection of decentralized and non-custodial smart contracts built to support the rest of the Decentralised Finance (DeFi) ecosyst…
- [VaultsCore](/developers-hub/parallel-v2/classic-vaults/vaultscore): The **VaultsCore** contract is the main interface for the user to interact with the Parallel protocol’s collateralized debt system, such as depositing, borrowi…
- [Opening a vault](/developers-hub/parallel-v2/classic-vaults/opening-a-vault): *As of July 2021, the Parallel Protocol Vaults supports the following collateral assets: WETH, WBTC, and USDC.*
- [Borrowing and minting PAR/paUSD](/developers-hub/parallel-v2/classic-vaults/borrowing-and-minting-par-pausd): To borrow and mint PAR/paUSD equal to `BORROW_AMOUNT`, call the `VaultsCore.borrow()` function.
- [Bridging Module](/developers-hub/parallel-v2/bridging-module/)
- [Architecture](/developers-hub/parallel-v2/bridging-module/architecture)
- [Sample Use Cases](/developers-hub/parallel-v2/bridging-module/sample-use-cases)
- [Super Vault (SV)](/developers-hub/parallel-v2/super-vault-sv/): The Super Vaults smart contracts are open source on Github:
- [Proxy Design](/developers-hub/parallel-v2/super-vault-sv/proxy-design/)
- [MIMOProxy](/developers-hub/parallel-v2/super-vault-sv/proxy-design/mimoproxy): Super Vault utilizes a proxy pattern to enable users to make proxy calls on behalf of other users and interact with various contracts (e.g., Parallel core prot…
- [MIMOProxyGuard](/developers-hub/parallel-v2/super-vault-sv/proxy-design/mimoproxyguard): As previously mentioned, the management of MIMOProxy's permissions has been delegated to the `MIMOProxyGuard`, which is deployed through the Openzeppelin Clone…
- [MIMOProxyFactory](/developers-hub/parallel-v2/super-vault-sv/proxy-design/mimoproxyfactory): The `MIMOProxyFactory` handles :
- [Action Contracts](/developers-hub/parallel-v2/super-vault-sv/action-contracts/)
- [MIMOEmptyVault](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimoemptyvault): The `MIMOEmptyVault` action contracts handle the super vault empty vault logic described in [Empty Vault](/products/parallel-v2/how-it-works/super-vaults-sv/em…
- [MIMOLeverage](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimoleverage): The `MIMOLeverage` action contract handle the super vault empty vault logic described in [Leveraging](/products/parallel-v2/how-it-works/super-vaults-sv/levera…
- [MIMORebalance](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimorebalance): The `MIMOLeverage` action contract handle the super vault empty vault logic described in [Rebalancing](/products/parallel-v2/how-it-works/super-vaults-sv/rebal…
- [MIMOAutoRebalance](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimoautorebalance): The `MIMOAutoRebalance` action contract handle the super vault empty vault logic described in [Automated Rebalance](/products/parallel-v2/how-it-works/super-va…
- [MIMOManagedRebalance](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimomanagedrebalance): The `MIMOManagedRebalance` action contract handle the super vault empty vault logic described in [Managed Rebalance](/products/parallel-v2/how-it-works/super-v…
- [MIMOProxyActions](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimoproxyactions): The `MIMOProxyActions` contract can be seen as an extension of the `MIMOProxy`. It adds 2 main functionalities :
- [MIMOVaultActions](/developers-hub/parallel-v2/super-vault-sv/action-contracts/mimovaultactions): The `MIMOVaultActions` actions contract is a mirror of the `VaultsCore` owner access restricted functionalities. Its sole purpose is to provide a readable way…
- [Leverage Max Amount Derivation](/developers-hub/parallel-v2/super-vault-sv/leverage-max-amount-derivation): If we have a starting amount of collateral `S`, the Minimum Collateralization Ratio (MCR) of the collateral limits how much additional collateral `L` we can le…
- [Addresses](/developers-hub/contract-addresses/): Deployed Parallel Contracts
- [Parallel V3](/developers-hub/contract-addresses/parallel-v3/): In this section you can find deployed Parallel V3 contract addresses:
- [USDp Contract Addresses](/developers-hub/contract-addresses/parallel-v3/usdp/): Deployed USDp contracts across supported chains.
- [PRL Contract Addresses](/developers-hub/contract-addresses/parallel-v3/prl/): Deployed PRL contracts across supported chains.
- [Parallel V2](/developers-hub/contract-addresses/parallel-v2/): In this section you can find deployed contract addresses for PAR & paUSD:
- [PAR Contract Addresses](/developers-hub/contract-addresses/parallel-v2/par/): Deployed PAR contracts across supported chains.
- [PAUSD-DEPRECATED Contract Addresses](/developers-hub/contract-addresses/parallel-v2/pausd-deprecated/): Deployed PAUSD-DEPRECATED contracts across supported chains.
- [MIMO-DEPRECATED Contract Addresses](/developers-hub/contract-addresses/parallel-v2/mimo-deprecated/): Deployed MIMO-DEPRECATED contracts across supported chains.
- [Build with Parallel](/agents/overview): Accept stablecoin payments from AI agents in any API. Drop-in middleware for Express, Next.js, Fastify, and Hono. Free, open source, zero platform fees.
- [What is x402?](/agents/x402/): x402 is the HTTP-native payment standard for AI agents. Accept stablecoin payments per request with zero platform fees, gas sponsored on L2, and no signup.
- [Accept stablecoins in Express in 5 minutes](/agents/x402/quickstart): Add stablecoin payment support to any Express, Next.js, Fastify, or Hono API with one middleware. Free, gasless on L2, no signup.
- [How the Parallel x402 facilitator works](/agents/x402/concepts): Routing, fees, gas sponsoring, and supported networks for the Parallel x402 facilitator. Accept USDp, USDC, and more with zero platform fees.
- [The verify / settle flow](/agents/x402/verify-vs-settle): How the Parallel x402 middleware verifies a payment off-chain, runs your handler, then settles on-chain — so agents are never charged for failed requests.
- [x402 SDK & facilitator API reference](/agents/x402/api-reference): Configuration, framework adapters, and the facilitator client for the Parallel x402 SDK — paymentMiddleware, withPayment, FacilitatorClient, and createPaymentGate.
- [x402 payment schemas](/agents/x402/schemas): Wire formats for the Parallel x402 payment headers — PaymentRequired, the signed payment payload, and the settlement confirmation.
- [x402 error codes](/agents/x402/error-codes): Reference for the errors thrown by the Parallel x402 SDK and the error codes propagated from the facilitator on a rejected payment.
- [Self-host the facilitator](/agents/x402/self-hosting): Run the open-source Parallel x402 facilitator yourself. MIT licensed — your traffic is never gated by Cooper Labs.
- [Webhooks](/agents/x402/webhooks): Merchant webhooks for the Parallel x402 facilitator are coming in V1.1. Until then, confirm payments by polling or by watching your wallet on-chain.
- [Migrate from Coinbase x402 to Parallel](/agents/recipes/migrate-from-coinbase-x402): Switch your facilitator URL and start accepting USDp, USDC, and other major stablecoins. One line of code, no breaking changes.
- [Frequently asked questions](/agents/faq): Common questions about the Parallel x402 facilitator and SDK — fees, supported stablecoins, accounts, self-hosting, and how it compares to Stripe and Coinbase x402.
- [User Guides](/resources/user-guides): Parallel is a protocol running on 16 blockchains. This means that you need a wallet to use the protocol.
-->

# Frequently asked questions

<FAQ
  items={[
{
  question: "Is the facilitator free?",
  answer: "Yes. The hosted facilitator is free to use — Parallel takes no cut of your revenue. You pay only your own gas, and that's sponsored on L2 (Base, Arbitrum, HyperEVM, Avalanche)."
},
{
  question: "Do I need to create an account?",
  answer: "No. There's no signup, no KYB, and no Parallel onboarding. Funds settle directly to the wallet address you control. You can start accepting payments in about five minutes."
},
{
  question: "What stablecoins are supported?",
  answer: "USDp and USDC by default, plus other major stablecoins depending on the network. The SDK selects the cheapest settlement route automatically — you don't choose, and the agent doesn't choose."
},
{
  question: "How is this different from Stripe?",
  answer: "Stripe charges 2.9% + $0.30 per transaction and only accepts credit cards, which AI agents don't have. The Parallel x402 facilitator is free, accepts stablecoins, and is built for agent-to-API payments."
},
{
  question: "How is this different from Coinbase x402?",
  answer: "Coinbase x402 handles USDC only. Parallel x402 accepts USDp, USDC, and other major stablecoins, with zero conversion fees and gas sponsored on L2. It's the same x402 standard, so you can migrate in one line."
},
{
  question: "Is the facilitator audited?",
  answer: "Audit status is published on the security page. The hosted facilitator is in beta; the code is open source and MIT licensed so you can review and self-host it."
},
{
  question: "What happens if the facilitator goes down?",
  answer: "The facilitator is open source, so you can self-host it and your traffic is never gated by Cooper Labs. A public status page for the hosted instance is being set up."
},
{
  question: "How do I get notified when an agent pays?",
  answer: "In V1, read the payment-response header on the successful response (it contains the on-chain transaction hash) or watch your wallet on-chain. Webhook delivery is planned for V1.1 (Q3 2026)."
},
{
  question: "Can I self-host the facilitator?",
  answer: "Yes. The facilitator is open source and MIT licensed. Point your middleware's facilitator URL at your own instance."
},
{
  question: "What about KYC / AML?",
  answer: "Parallel does not perform KYC on agents or merchants, and the protocol is non-custodial — funds never touch Cooper Labs. You remain responsible for your own compliance obligations."
},
]}
/>

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