In October, we announced that Base would be moving our test network (“Base Testnet”) from Goerli to Sepolia. The transition is complete and Base Goerli has been sunset. As of today, Base Sepolia will be the only Base Testnet. Please review the Base Docs site and the information below to get started with Base Sepolia. Base Sepolia ResourcesNetwork informationContract informationBase Sepolia BridgeIf you have any questions or need technical support while getting started with the new test networ...

In October, we announced that Base would be moving our test network (“Base Testnet”) from Goerli to Sepolia. The transition is complete and Base Goerli has been sunset. As of today, Base Sepolia will be the only Base Testnet. Please review the Base Docs site and the information below to get started with Base Sepolia. Base Sepolia ResourcesNetwork informationContract informationBase Sepolia BridgeIf you have any questions or need technical support while getting started with the new test networ...

TL;DR: The Base Ecosystem Fund, led by Coinbase Ventures, aims to invest in the next generation of onchain projects building on Base. We received over 800 applications for our Base Ecosystem Fund, and we’re excited to announce our first six investments today: Avantis, BSX, Onboard, OpenCover, Paragraph, and Truflation. The Base Ecosystem Fund was launched earlier this year to invest in the next generation of onchain projects building on Base. In March, we shared a Request for Builders to high...

TL;DR: The Base Ecosystem Fund, led by Coinbase Ventures, aims to invest in the next generation of onchain projects building on Base. We received over 800 applications for our Base Ecosystem Fund, and we’re excited to announce our first six investments today: Avantis, BSX, Onboard, OpenCover, Paragraph, and Truflation. The Base Ecosystem Fund was launched earlier this year to invest in the next generation of onchain projects building on Base. In March, we shared a Request for Builders to high...

In December, the Base core team came together to reflect on our first year of building and focus on what’s ahead. Fueled by learnings from Coinbase teams and ecosystem collaborators, we're excited to share what we’re focusing on in 2024. We welcome thoughts, feedback, and input — if you have ideas, please join us in /base on Farcaster and share them!Our Mission in 2024: To build a global onchain economy that increases innovation, creativity, and freedomA little over a year ago, when we s...

In December, the Base core team came together to reflect on our first year of building and focus on what’s ahead. Fueled by learnings from Coinbase teams and ecosystem collaborators, we're excited to share what we’re focusing on in 2024. We welcome thoughts, feedback, and input — if you have ideas, please join us in /base on Farcaster and share them!Our Mission in 2024: To build a global onchain economy that increases innovation, creativity, and freedomA little over a year ago, when we s...

TLDR: Today, we’re open sourcing op-viem and op-wagmi, extensions to the popular developer tools viem and wagmi. We’ve developed these libraries, in collaboration with the community, to empower developers to build faster and easier on OP Stack chains. Building for OP chains with op-viem and op-wagmi Base aims to bring the next million builders and billion users onchain, giving builders an easy-to-use, fast, and cheap development platform. While L2s like Base offer developers cost and speed ad...

TLDR: Today, we’re open sourcing op-viem and op-wagmi, extensions to the popular developer tools viem and wagmi. We’ve developed these libraries, in collaboration with the community, to empower developers to build faster and easier on OP Stack chains. Building for OP chains with op-viem and op-wagmi Base aims to bring the next million builders and billion users onchain, giving builders an easy-to-use, fast, and cheap development platform. While L2s like Base offer developers cost and speed ad...

TLDR: Base is open-sourcing our meetups and inviting passionate builders to take the lead. This move empowers people across the Base ecosystem to share ideas on a global level. Apply here. The path to decentralization for Base isn’t confined to technical aspects. We're equally committed to decentralizing the people systems behind Base and the communities that make it happen. We believe that a thriving decentralized community will foster more robust idea-sharing, creativity, and innovatio...

TLDR: Base is open-sourcing our meetups and inviting passionate builders to take the lead. This move empowers people across the Base ecosystem to share ideas on a global level. Apply here. The path to decentralization for Base isn’t confined to technical aspects. We're equally committed to decentralizing the people systems behind Base and the communities that make it happen. We believe that a thriving decentralized community will foster more robust idea-sharing, creativity, and innovatio...

We skipped Nihilism TL;DR.* We’ve built Pessimism, an open source monitoring system designed to enhance the security of Base (as well as the broader OP Stack and Ethereum ecosystems) by quickly detecting and responding to a myriad of protocol threats.*IntroductionAs we worked to launch Base, we chose to create an open and permissionless network that would allow creative projects of all kinds to come to life. At the same time, given this open nature, we wanted to ensure we have the best in-hou...

We skipped Nihilism TL;DR.* We’ve built Pessimism, an open source monitoring system designed to enhance the security of Base (as well as the broader OP Stack and Ethereum ecosystems) by quickly detecting and responding to a myriad of protocol threats.*IntroductionAs we worked to launch Base, we chose to create an open and permissionless network that would allow creative projects of all kinds to come to life. At the same time, given this open nature, we wanted to ensure we have the best in-hou...

In October, we announced that Base will be moving our test network from Goerli to Sepolia. Now that we’re getting closer to the end of Goerli support by Ethereum client and EF testing teams, we want to provide users and developers with an update on important dates and information. Important Dates1/19/2024 - Deposit functionality on the Base Goerli bridge will be paused1/31/2024 - Base docs will no longer reference Goerli2/9/2024 - Base Goerli infrastructure (including the Base Goerli bridge U...

In October, we announced that Base will be moving our test network from Goerli to Sepolia. Now that we’re getting closer to the end of Goerli support by Ethereum client and EF testing teams, we want to provide users and developers with an update on important dates and information. Important Dates1/19/2024 - Deposit functionality on the Base Goerli bridge will be paused1/31/2024 - Base docs will no longer reference Goerli2/9/2024 - Base Goerli infrastructure (including the Base Goerli bridge U...

TL;DR: Base Bootcamp is an eight-week, cohort-based program to turn experienced developers into smart contract developers. The Foundation for Building Onchain At Base, our vision is to onboard the next million builders and billion users onchain. Today, there are fewer than 30,000 onchain developers, compared to nearly 30 million software developers. To build towards a decentralized and open global ecosystem, it’s clear that we need to open the pathway for more onchain developers. Earlier this...

TL;DR: Base Bootcamp is an eight-week, cohort-based program to turn experienced developers into smart contract developers. The Foundation for Building Onchain At Base, our vision is to onboard the next million builders and billion users onchain. Today, there are fewer than 30,000 onchain developers, compared to nearly 30 million software developers. To build towards a decentralized and open global ecosystem, it’s clear that we need to open the pathway for more onchain developers. Earlier this...

TLDR: Base is helping bring onchain and real-world art to Art Basel in Miami Beach with Base Hunt and Base House from Dec 8-10. Base Hunt invites everyone to participate (either online or IRL) in a “treasure” hunt across Miami, highlighting art, culture, and media across the city. Base House is a physical interactive space at Ampersand Studios, weaving onchain art and culture into the fabric of the city. Both are open to all. Base is coming to Art Basel in Miami Beach for the first time. We’r...

TLDR: Base is helping bring onchain and real-world art to Art Basel in Miami Beach with Base Hunt and Base House from Dec 8-10. Base Hunt invites everyone to participate (either online or IRL) in a “treasure” hunt across Miami, highlighting art, culture, and media across the city. Base House is a physical interactive space at Ampersand Studios, weaving onchain art and culture into the fabric of the city. Both are open to all. Base is coming to Art Basel in Miami Beach for the first time. We’r...

Why We’re Building in the Open One of Base’s core values is building in the open. We believe this is foundational to building an onchain ecosystem because it creates accountability and enables collaboration. By sharing our work openly, we enable the community to track our progress and ensure that we're living up to our commitments. This transparency also serves as a catalyst for collaboration, as it allows developers to tap into our knowledge base, building upon and refining what's ...

Why We’re Building in the Open One of Base’s core values is building in the open. We believe this is foundational to building an onchain ecosystem because it creates accountability and enables collaboration. By sharing our work openly, we enable the community to track our progress and ensure that we're living up to our commitments. This transparency also serves as a catalyst for collaboration, as it allows developers to tap into our knowledge base, building upon and refining what's ...

Base is moving our test network from Goerli to Sepolia. This shift isn't just a technical move; it's a stride toward creating a more unified ecosystem. Why the Move to Sepolia?Walking Hand in Hand with Optimism: As both Optimism and Base have a shared vision for a superchain future, moving to Sepolia created a more unified ecosystem.Fostering App Development: Sepolia's environment is tailored for app development, aligning with the core purpose of our testnet.Goodbye Goerli, Wel...

Base is moving our test network from Goerli to Sepolia. This shift isn't just a technical move; it's a stride toward creating a more unified ecosystem. Why the Move to Sepolia?Walking Hand in Hand with Optimism: As both Optimism and Base have a shared vision for a superchain future, moving to Sepolia created a more unified ecosystem.Fostering App Development: Sepolia's environment is tailored for app development, aligning with the core purpose of our testnet.Goodbye Goerli, Wel...

TL;DR. The Base mainnet network briefly stalled on September 5, 2023 (incident). We’re sharing this postmortem as part of our commitment to building Base in a decentralized, open source manner and with an eye towards continually improving the reliability and resiliency of the Base network.Root causeAt approximately 2:25 pm PT, the Base mainnet network stopped producing blocks for 29 minutes. This was due to dependence on a set of L1 nodes that all exhausted their disk space at 2:15 pm, causin...

TL;DR. The Base mainnet network briefly stalled on September 5, 2023 (incident). We’re sharing this postmortem as part of our commitment to building Base in a decentralized, open source manner and with an eye towards continually improving the reliability and resiliency of the Base network.Root causeAt approximately 2:25 pm PT, the Base mainnet network stopped producing blocks for 29 minutes. This was due to dependence on a set of L1 nodes that all exhausted their disk space at 2:15 pm, causin...