Never sell your Bitcoin. Borrow against it.
Never sell your Bitcoin. Borrow against it.
Never sell your Bitcoin. Borrow against it.
Processed
Collaterized
Users
Loans processed
Processed
Secured
Users
Loans funded
Processed
$650M+
Collaterized
5,800 BTC
Users
30K+
Loans
26k+
The open market for Bitcoin-backed loans
The open market for Bitcoin-backed loans
Non-custodial
Collateral secured by multisig escrow on Bitcoin mainnet.
Open source
Built in the open. Full protocol on GitHub.
Available globally
Borrow from anywhere. Access a worldwide network of lenders.
Bank & stablecoin payouts
Bank wire or stablecoin wallet. Your currency, your call.
Non-custodial
Collateral secured by multisig escrow on Bitcoin mainnet.
Open source
Built in the open. Full protocol on GitHub.
Available globally
Borrow from anywhere. Access a worldwide network of lenders.
Bank & stablecoin payouts
Bank wire or stablecoin wallet. Your currency, your call.
Non-custodial
Collateral secured by multisig escrow on Bitcoin mainnet.
Open source
Built in the open. Full protocol on GitHub.
Available globally
Borrow from anywhere. Access a worldwide network of lenders.
Open source
Built in the open. Full protocol on GitHub.
Trusted by and featured in
Trusted by and featured in
Borrow against Bitcoin with rates from 5%
Borrow against Bitcoin with rates from 5%
Open markets drives better rates
Open markets drives better rates
Open markets drives better rates
No single bank desk decides your rate. Firefish connects you to lenders worldwide, creating an open market for Bitcoin-backed credit.
No single bank desk decides your rate. Firefish connects you to lenders worldwide, creating an open market for Bitcoin-backed credit.
Bitcoin is your credit
Bitcoin is your credit
Bitcoin is your credit
No credit checks. No paperwork. Access liquidity when you need it — if you hold Bitcoin, you qualify.
No credit checks. No paperwork. Access liquidity when you need it — if you hold Bitcoin, you qualify.
Institutional grade security
Institutional grade security
Non-custodial escrow, operated within a regulated framework.
Non-custodial escrow, operated within a regulated framework.
Simple to use
Simple to use
Secure your loan with one Bitcoin transfer.
Secure your loan with one Bitcoin transfer.
Flexible terms
Flexible terms
Loan durations from 3–24 months to suit your needs.
Loan durations from 3–24 months to suit your needs.
<No monthly payments> Repay in full at the end of your term. No instalments.
<No monthly payments> Repay in full at the end of your term. No instalments.
Liquidity now. <Bitcoin forever.> Access the cash you need today and get your full stack back once you've repaid.
Liquidity now. <Bitcoin forever.> Access the cash you need today and get your full stack back once you've repaid.
Endorsed by respected names in Bitcoin
Endorsed by respected names in Bitcoin
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
Endorsed by respected names in Bitcoin
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
Never sell
Firefish /
//Bitcoin
<!open-source>
<!non-custofial>
Never sell
Firefish /
//Bitcoin
<!open-source>
<!non-custofial>
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Quick answers
Do you accept collateral other than Bitcoin?
How much Bitcoin do I need?
Who holds my Bitcoin?
How does the escrow work, and is it safe?
When can my collateral be liquidated?
Can I avoid liquidation?
Where is Firefish available?
What happens if Firefish becomes unavailable?
Quick answers
Do you accept collateral other than Bitcoin?
How much Bitcoin do I need?
Who holds my Bitcoin?
How does the escrow work, and is it safe?
When can my collateral be liquidated?
Can I avoid liquidation?
Where is Firefish available?
What happens if Firefish becomes unavailable?
Firefish Europe s.r.o. (ID: 55912974) is authorised as a crypto-asset service provider (CASP) under Regulation (EU) 2023/1114 (MiCA) to provide crypto-asset services referred to in Article 3(1) (16)(a), (c), (d) and (j). This authorisation covers crypto-asset services provided within the Firefish platform offering —operation of the bitcoin collateral escrow environment, liquidation exchange of collateral, and related on-chain transfers. Any other services available through the Firefish platform or Firefish activities connected to the platform operation fall outside the scope of MiCA and are not covered by this authorisation.
©2026 Firefish. All rights reserved.
Firefish
Firefish Europe s.r.o. (ID: 55912974) is authorised as a crypto-asset service provider (CASP) under Regulation (EU) 2023/1114 (MiCA) to provide crypto-asset services referred to in Article 3(1) (16)(a), (c), (d) and (j). This authorisation covers crypto-asset services provided within the Firefish platform offering —operation of the bitcoin collateral escrow environment, liquidation exchange of collateral, and related on-chain transfers. Any other services available through the Firefish platform or Firefish activities connected to the platform operation fall outside the scope of MiCA and are not covered by this authorisation.
©2026 Firefish. All rights reserved.
Firefish
Firefish Europe s.r.o. (ID: 55912974) is authorised as a crypto-asset service provider (CASP) under Regulation (EU) 2023/1114 (MiCA) to provide crypto-asset services referred to in Article 3(1) (16)(a), (c), (d) and (j). This authorisation covers crypto-asset services provided within the Firefish platform offering —operation of the bitcoin collateral escrow environment, liquidation exchange of collateral, and related on-chain transfers. Any other services available through the Firefish platform or Firefish activities connected to the platform operation fall outside the scope of MiCA and are not covered by this authorisation.
©2026 Firefish. All rights reserved.
Firefish