Welcome to Arbitrum Builders Cohort

A collaborative initiative designed for building dapps and tools on the Arbitrum ecosystem.

A place for builders to contribute and learn, where a handpicked group of high-impact builders receives targeted support, mentorship, and funding for their contributions through monthly on-chain streams.

Progress is tracked transparently through public updates, contribution logs, and on-chain activity, encouraging a culture of accountability and shared learning.

Focus areas: DeFi projects, MEV solvers, AI agents and TEEs (Trusted Execution Environments), DAO transparency tools.

Projects

DevCreds

DevCreds is an on-chain developer reputation system on Arbitrum powered by attestations (EAS). Think of it as a trustworthy, verifiable version of LinkedIn endorsements.

Builders:

Proposals Dashboard

A governance dashboard for Arbitrum that ingests proposals from Forums, Snapshot and Tally, glues them together and provides a user friendly UI to browse and navigate through them.

Builders:

Builders

Contribution Log

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proposals-dashboard

3/18/2026

AI matching existing proposals - snapshot - tally (#22) LLM-based matching for snapshot/tally stages admin page (#27) Test #26 #23 #17 #12 #11 (forum, snapshot, tally imports and wire UI to database) Initial test of RAG (#19)

800 USDC
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dev-creds

3/18/2026

December work: Ideate and test My peers feature (#78). PM

200 USDC
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proposals-dashboard

3/1/2026

Handle Re-imports PR (#18), Set up Live enviroment (#24) Review admin dashboard PR (#16)

500 USDC
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dev-creds

1/6/2026

Implement responsive design fixes for all the pages in the app: https://github.com/damianmarti/dev-creds/pull/75

200 USDC
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dev-creds

12/27/2025

Fix automatic deployment. Upgrade nextjs react https://github.com/damianmarti/dev-creds/pull/77Add My Peers page https://github.com/damianmarti/dev-creds/pull/78 PR Review: https://github.com/damianmarti/dev-creds/pull/75

600 USDC
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dev-creds

11/10/2025

Add Arbitrum schema https://github.com/damianmarti/dev-creds/pull/68 Production setup and deploy. Check for developer data at builder page https://github.com/damianmarti/dev-creds/pull/71 PR Reviews: https://github.com/damianmarti/dev-creds/pull/73

400 USDC
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proposals-dashboard

11/3/2025

Forum import (#11), Snapshot import (#12)

500 USDC
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dev-creds

11/2/2025

Add link to my builder profile for registered users,Remove Skills UI from attestations page, Remove Collaborators UI from builder page - (PR #51) Improved form to open as modal for builder page + added validations for evidences to be valid urls Improved attestations list table Hardcoded list of skills with Autocomplete Replacing placeholder for compute on builder page to show Address component (PR #58) Move Developer Search to Header (PR #65) Github username validation (PR #69) Reviewed PRs - (#54,#56,#59,#62,#64,#66,#68,#72)

1000 USDC
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proposals-dashboard

10/30/2025

Create dashboard UI with moc data (PR #10). Update data fetching issues with proper specification

200 USDC
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dev-creds

10/30/2025

Update link Github behavior (#61) and initial Readme version (#55). Review PRs (#69 #68 #65 #64 #62 #59 #58 #56) Create video demo to share with the team

800 USDC
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dev-creds

10/27/2025

Created OG image generation and dynamic metatags for builder profiles: https://github.com/damianmarti/dev-creds/pull/62 Added miniapp integration and farcaster wallet support: https://github.com/damianmarti/dev-creds/pull/66

750 USDC
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dev-creds

10/20/2025

Builder profile with GitHub data and stats https://github.com/damianmarti/dev-creds/pull/41 Remove background to attestations list https://github.com/damianmarti/dev-creds/pull/54 Improve builder skills https://github.com/damianmarti/dev-creds/pull/56 Collaborator and verified badges  https://github.com/damianmarti/dev-creds/pull/59 Improve developers search https://github.com/damianmarti/dev-creds/pull/64 PR reviews: https://github.com/damianmarti/dev-creds/pull/40 https://github.com/damianmarti/dev-creds/pull/39 https://github.com/damianmarti/dev-creds/pull/51 https://github.com/damianmarti/dev-creds/pull/55 https://github.com/damianmarti/dev-creds/pull/58 https://github.com/damianmarti/dev-creds/pull/65 https://github.com/damianmarti/dev-creds/pull/66 https://github.com/damianmarti/dev-creds/pull/61

1000 USDC
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proposals-dashboard

10/2/2025

Define spec for the project with Pablo. Scaffold project + cleanup + initial database set up (PR #1 + #2). Review PR #3 (initial database schema)

500 USDC
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proposals-dashboard

9/30/2025

Review and test APIs for the different proposal platforms (tally, snapshot, forum). Create initial database schema and seed (PR #3)

300 USDC
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dev-creds

9/30/2025

Add footer (PR #53) and review PRs (#54 #51 #41 #39 #37 #32 #31 #25 #23 #20 #15)

700 USDC
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dev-creds

9/30/2025

Worked on Builder and Builders page with mockup data UI (covers 2 issues) - https://github.com/damianmarti/dev-creds/pull/20 PR covering 5 issues (https://github.com/damianmarti/dev-creds/pull/32) Creating reusable components and graphql queries #26 Creating reusable types to share between components #27 Covers working and linking of search and builders list #29 Covers link between Builders page and Builder Profile #34 Covers prefilling value when attest button clicked on Builder Profile #35 Helped review Dev-search and Ponder attestion list PR (#23) Review Github evidences PR (https://github.com/damianmarti/dev-creds/pull/31/files) Review Builder profile with GitHub data and stats (#41)

1000 USDC
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dev-creds

9/26/2025

Add dev search and ponder attestation list https://github.com/damianmarti/dev-creds/pull/23 Add attest page https://github.com/damianmarti/dev-creds/pull/25 Verify GitHub evidences https://github.com/damianmarti/dev-creds/pull/31 Use a classic for loop to save dev skills https://github.com/damianmarti/dev-creds/pull/37 Issues creation and review. PR reviews: https://github.com/damianmarti/dev-creds/pull/14 https://github.com/damianmarti/dev-creds/pull/24 https://github.com/damianmarti/dev-creds/pull/20 https://github.com/damianmarti/dev-creds/pull/32

750 USDC
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dev-creds

9/26/2025

Worked on DevCreds issues: https://github.com/damianmarti/dev-creds/issues/19 https://github.com/damianmarti/dev-creds/issues/18

750 USDC
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dev-creds

9/8/2025

Help with project ideation and prepare the "live mockups" with the different pages and use cases. Review github connection PR. -------- Prepare initial proposals for Cohort Builds and review current governance workflows to prepare a build proposal to enhance it.

500 USDC
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dev-creds

9/4/2025

Worked on PRs - https://github.com/damianmarti/dev-creds/pull/12 https://github.com/damianmarti/dev-creds/pull/14 Help review - https://github.com/damianmarti/dev-creds/pull/15 Raised issues - https://github.com/damianmarti/dev-creds/issues/18 https://github.com/damianmarti/dev-creds/issues/19 Tackled issues - https://github.com/damianmarti/dev-creds/issues/1 https://github.com/damianmarti/dev-creds/issues/2 https://github.com/damianmarti/dev-creds/issues/3

750 USDC
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dev-creds

9/2/2025

Create EAS schema. Allow to attest developers, with skills, description and evidence. Page with attestations list. Create first issues. EAS Indexer investigation. Add ponder indexer and add eas to config. Create new EAS schema with evidence as an array (https://github.com/damianmarti/dev-creds/pull/15). Review link GitHub feature PR (https://github.com/damianmarti/dev-creds/pull/12).

500 USDC

Stream Contract

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