Developer Resources

Selected tools and references for people building with AI.

Public repositories

Open Source

Explore Hopper’s published code. Each repository identifies its license and current release status.

Private · Subscriber access

Pro Source

Source for the connected components, intended for active subscribers. Private repositories require access granted to your GitHub account.

Subscriber access is being prepared. Subscriptions are not open yet.

Pro Source GitHub Membership details →

Find a capability. See its contract. Try it.

Start with a working app, then inspect the operations behind it. Each app publishes its own input schemas and availability. The same contracts let people and agents discover what can be connected.

Try a read-only example in your browser console or Bun

This fetches public metadata and prints Notes’ supported operations. No account, key, installation or app mutation is required.

const origin = typeof location === "undefined"
  ? "https://hopperlabs.ai" : location.origin;
const read = async (path) => {
  const response = await fetch(new URL(path, origin));
  if (!response.ok) throw new Error("Discovery: " + response.status);
  return response.json();
};
const index = await read("/agents/index.json");
const app = index.apps.find((app) => app.id === "notes");
if (!app) throw new Error("Notes is not in this catalog");
const detail = await read(app.schema);
console.table(detail.operations.map(({ action, readOnly }) =>
  ({ action, readOnly })));

To run an operation, open the app’s demo and use its Agent panel. HTTP discovery does not pair a browser or expose the demo’s private state. The panel supplies the exact connection and session instructions.

Choose the right integration surface

Public metadata: static JSON over HTTPS, usable from any language.
Browser operations: the selected app’s published schemas and page connection.
Local MCP: the versioned helper and binding instructions in the complete guide.
Product API, CLI and SDK: the owning product’s release and license; a working demo does not imply downloadable source.
Relationships and discovery queries: the typed site graph.

engineeringsystems