Robinhood Chain has more than a million token contracts. We prove which teams are actually building on it.
Hey Research Lab reads their code, releases and contract deployments and answers one question with evidence:
who is still building, and what did they ship? Every claim links to its source. Price is context, never the verdict.
The chain, live · For builders · For AI agents · Fixes we sent upstream · Use it · Open source
Redrawn every day from heyresearch.xyz's public API. Browsing HEY needs no wallet, and nothing on it is for sale.
Building on Robinhood Chain? Everything here is free, and none of it buys a place: what you ship decides.
| A page that shows your work | every release, deployment and code week we read, each linked to its source: find yours on heyresearch.xyz or submit it |
| Fixes, not just findings | we read your public code; when we find a bug we can fix, we send a pull request, and anything security-related goes to you privately first |
| A live badge | your HEY badge for your site or README, updated from public evidence: heyresearch.xyz/badges |
| Funding for shipping | backers can fund you in $WIF through Proof of Ship, an escrow that pays only when HEY counts real ships |
| Your data, open | the API, the embed and the open dataset are free for your own product: heyresearch.xyz/developers |
| Counted in Electric Capital's developer data | we added Robinhood Chain to Open Dev Data as its own ecosystem (1,183 repositories) and send it a monthly update, so builders here show up in the industry's developer numbers |
The hosted MCP server is listed as a community connector in Claude's Connectors Directory. Skills and plugins: hey-agent-skills, an Agent Skill and Claude Code plugin.
The latest fixes merged
287 pull requests sent to 229 repositories we don’t own, 44 merged so far. When we read a team’s code to check what they shipped and find a bug we can fix, we send the fix: dead explorer links, wrong chain config, block-time maths, stale contract addresses. Each one is the team’s call to take.
| Merged into | The fix |
|---|---|
| Hookr-fun/hookr-contracts | Add a security policy for private vulnerability reports |
| nirholas/robinhood-chain-trading-bot | fix(agent): do not book a live swap whose transaction reverted |
| nirholas/robinhood-chain-alert-bot | fix(engine): deliver an event once per subscriber when several subscriptions match |
| nirholas/robinhood-chain-launcher | fix(auto): do not mark a proposal executed when its launch was blocked at preflight |
| nirholas/robinhood-chain-launcher | fix(auto): store proposals whose preflight and config carry bigints |
| nirholas/loxley | fix(chain): point the testnet explorer at explorer.testnet.chain.robinhood.com |
| nirholas/hookforge | PriorityFeeTax: drop robinhood from recommended chains, where tx.gasprice equals block.basefee |
| GemachDAO/gdex-skill | fix: truncate decimals without floating-point error (truncateDecimals, perp preview size) |
| collabnix/awesome-mcp-lists | Add HEY Research Lab MCP server |
| abysshopper/black-market-python-sdk | default_hmm_launch_config: reject quote_decimals that differ from a catalogue quote |
| davepoon/buildwithclaude | Add hey-research skill (category: research) |
| qvotvm/hermes-team-kit | fix(breaker): fall back to the ledger when the usage reply is stale |
Every fix, open, merged or closed: heyresearch.xyz/contributions · refreshed daily
Fixes teams shipped in their own commits
Some teams take a fix into their own commit instead of merging ours. These count the same to us:
| Shipped by | What landed |
|---|---|
| Gloam | all six fixes from #117 to #122: MCP version pins, cash-out address guard, payment settlement, API key rename, MCP spend limits, access-key generation |
| HoodFi | #12, #13 and #14 merged with our commits in #17, #19 and #20; #15 shipped as a narrower fix in #18 |
Merged one of our fixes and liked it? A shout-out on X helps a small team keep sending them: tag x.com/HeyResearch and say what we fixed. That's the only thank-you we ask for.
When we find something that could put funds at risk, it goes to the team privately first, through their own channel. We publish nothing until they do.
Published advisories we found (5)
| Project | Advisory | Severity | Our credit |
|---|---|---|---|
| Priors | GHSA-4w7q-8vph-j5mr: a PT-USDG price tape resumed after the feed dropped its rounds held credit for about 15 days and seized the whole deposit on default | Low | Finder |
| Priors | GHSA-jjxq-7r68-44m5: Score v2 kept a market sale made after a plain transfer, carrying the intermediary's income | Low | Finder |
| Priors | GHSA-qcrq-x8xg-25vg: the stock vault's borrowRoom quoted room the vault and pool refuse |
Low | Finder · fixed in Priors' readers, listed as SV-21 |
| Priors | GHSA-xccq-5ghg-w7mq: a V5 borrow over 10 days sent a transaction before it was refused | Low | Finder · fixed in @priors/x402 0.8.3 and @priors/mcp 0.12.1, listed as P-49 |
| Priors | GHSA-3vg6-2f3m-j5qm: a new PT-USDG price tape started at round 1 once the feed had dropped its old rounds | Low | Finder · fixed on chain, listed as SV-20 |
Maintain a Robinhood Chain project and want a second pair of eyes? Turn on private vulnerability reporting on your repository, and we report there.
| Check any token or project | heyresearch.xyz · from a terminal: npx @hey-research-lab/check '$TICKER' |
| Weekly builder report | who shipped on Robinhood Chain this week, each ship with its source: heyresearch.xyz/reports/weekly |
| Public API | one call per token: GET /api/v1/builder?chain=4663&token=0x… · docs · changelog |
| Embed | a live builder card on any site: <hey-project contract="0x…"> · embeds |
| Token Passport | a token's page credits the Robinhood Chain protocols whose facts HEY reads (a HoodLock lock, the launchpad that minted it, its Uniswap v4 hooks), each with a link: heyresearch.xyz/passport |
| Badge | a project's live HEY badge for its site or README; projects showing one are thanked on heyresearch.xyz/badges |
| Open data | daily snapshots, CC BY 4.0: heyresearch.xyz/data |
| Project | How |
|---|---|
| Chit | Chit's bot shows HEY's builder card for a token, where people trade |
| RHTools | RHTools draws the chart, HEY answers who built the token; each links to the other |
| HoodLock | HEY reads HoodLock's locks on chain and shows each on the token's page |
| Orus | Orus's trading agents can use HEY's builder evidence as an optional entry filter |
| Axon | shows its live HEY badge on its own site |
| PFWA | shows HEY's builder card on every Robinhood Chain token market, our badge in its footer and HEY in its "Powered by" strip |
Building on Robinhood Chain and want builder context in your product? The API, the embed and the badge are free: heyresearch.xyz/developers/partners. Running a protocol on Robinhood Chain with public on-chain data or a public API? Ask to join the Token Passport; nobody pays for a stamp.
Our public repositories
| Repository | What it is |
|---|---|
| awesome-robinhood-chain | Projects building on Robinhood Chain, regenerated weekly from the open dataset |
| hey-check | Dev check for any Robinhood Chain token: is anyone building it? A terminal answer and a shareable card |
| chainprint | Offline scan of a source tree for evidence that the code targets Robinhood Chain, with a confidence anyone can recompute |
| rhchain-registry | A CI-validated registry of Robinhood Chain infrastructure, a public source for every entry |
| hey-cli | HEY's research from the terminal |
| hey-ship-action | A GitHub Action that writes evidence linking a commit or release to a Robinhood Chain deployment |
| hey-agent-skills | An Agent Skill and Claude Code plugin for builder research |
| hey-research-open | The open part of the platform: SDK, MCP server, scoring and source adapters |
Every public repository, including data snapshots, embeds and agent-framework plugins: github.com/hey-research-lab. Small, well-described issues are labelled good first issue. Found a security issue in one of our repositories? Write to hi@heyresearch.xyz or x.com/HeyResearch.
Community-run by Hey Research Lab · not affiliated with or endorsed by Robinhood · a HEY badge is verified from public evidence, not a Robinhood certification · not investment advice.