Seeking Mission Request Sponsorship

Mission Request: ERC4337 Services and Startup Program Offering

Delegate Mission Request Summary:

  1. Deploying our ERC4337 service for OP

    a. Launch the ERC-4337 bundler service for OP under the framework of RPC service. (

    b. Deploying the service of OP mainnet and testnet on our all-in-one ERC4337 browser. (

  2. Providing a dedicated Web3 Startup Program for developers within the OP ecosystem.

S5 Intent Please list the Intent your Request aligns with here:

Intent 3: Improve the consumer experience

Proposing Delegate: TBD

Proposal Tier: Ember Tier

Baseline grant amount: 20,000 OP

Should this Foundation Mission be fulfilled by one or multiple applicants: One

Submit by: To be set by Grants Council

Selection by: To be set by Grants Council

Start date: The date this proposal is approved.

Completion date: Within 3 months after the start date.


How will this Delegate Mission Request help accomplish the above Intent?

1. ERC4337 service

BlockPI Network is a decentralized multi-chain infrastructure provider, offering one-stop RPC services for web3 users. With the development of AA moving forward and started to making an impact in the whole Web3 industry, as a pioneer in the AA industry, we are committed to pushing AA service (ERC-4337 Bundler service and AA Explorer, supported and granted by Ethereum Foundation) forward to provide a better user experience for all Web3 users.

Specifically, we aim to establish ERC4337 Bundler and Explorer services to support AA user activities on OP. Users are able to send ERC-4337 RPC requests and interact with UserOps to BlockPI Network with the same RPC endpoint. BlockPI will route these requests to ERC-4337 Bundlers. We have cooperated with Candide, Stackup, Etherspot and Pimlico and integrated their open-source Bundler clients in the BlockPI RPC service network. All those Bundler clients are currently run by the BlockPI team to ensure the best quality of service. Users are allowed to choose which bundler client to process their request. Also, there is also an Auto function, which will let our load balancer select a suitable client server for the user based on the performance and health status of all the client servers. Check Bundler Service - BlockPI Network for more Bundler service info.

AA Explorer ( is an Account Abstraction browser focusing on MEV Analysis and data visualization for the convenience of AA users and developers. Ethereum mainnet is currently onboarded. Once OP is supported. Users and developers are able to access the explorer and see all the OP ERC4337 data for free.

2. Startup Program Special funds

The current program aims to give back to the community and help early stage projects grow, BlockPI launches this Web3 Startup Program and partners with other renowned projects in the industry to offer a comprehensive support, such as marketing support, funding support, tech support and special service credits (up to $1000 credits) for Web3 startups. For more basic info, check BlockPI Startup | Empowering Web3 Startups

In this Mission Request, we will allocate a specific amount of funding from the BlockPI Startup Program to the OP Collective to support projects that qualify for S5. The budget size is $20000. Each project can apply for a maximum of $1000 additional credits to cover the costs of BlockPI’s paid services. In addition to the basic $1000 credits, a maximum of $2000 credits can be obtained by each project.

What is required to execute this Delegate Mission Request?

  1. BlockPI tech team needs to work on the R&D of the ERC4337 service integration on OP (both Bundler service and AA Explorer). Maintain the service after deployment. until retroPGF 5 ends.
  2. To process the Startup Program application, BlockPI marketing team needs to verify the applicants with the OP Collective.

How should the Token House measure progress towards this Mission?

Once the Mission Request is approved, we will proceed with the related development and maintenance work. The corresponding OP allocation and duration are listed in the table below. Token House can verify the service validity of each milestone on and

We plan to operate this proposal until the completion of retroPGF5. During retroPGF4 and retroPGF5, we will submit proposals for additional reward evaluations.

Milestone Rewards Work duration
1. OP Bundler service 2,000 OP 30 days
2. OP integration on AA explorer 4,000 OP 45 days
3. Maintain the services until retroPGF4 end 4,000 OP Towards retroPGF4 end
4. Providing total $10000 additional credits to OP Collective projects. 3,000 OP Towards retroPGF4 end
5. Maintain the services until retroPGF5 end 4,000 OP Towards retroPGF5 end
6. Providing total $20000 additional credits to OP Collective projects. 3,000 OP Towards retroPGF5 end

How should badgeholders measure impact upon completion of this Mission?

We have been providing RPC services for OP for a long time and have accumulated a large number of regular users. According to our own statistics, we handle over 1 billion OP RPC requests per month.

We will report back the statistics of the OP Bundler service and AA explorer’s access in a bi-weekly report after the service is deployed to the OP team.

The impact can also be evaluated through community and feedback obtained from OP Collective projects.

For the Startup Program, badgeholders can directly communicate with the projects we have approved to understand their progress.

Have you engaged a Grant-as-a-service provider for this Mission Request?

Has anyone other than the Proposing Delegate contributed to this Mission Request?