Why NEUS
Every app, marketplace, workflow, and agent stack rebuilds trust from zero. NEUS turns trust decisions into reusable trust receipts that apps, agents, gates, and audit systems can check before access, payment, or action.
A trust receipt proves a check already happened: identity, ownership, authority, or permission. Show it on a profile, attach it to a gate, or validate it through the API. Trusted actors move across surfaces; unknown or risky actors hit policy gates.
| Need | What you get with NEUS |
|---|---|
| Stop rebuilding verification in every product | One receipt you can save, check, and reuse across apps |
| Gate access, rewards, or content | Hosted flows, React widgets, and server-side allow/deny checks |
| Trust agents before they act | Verifiable identity, scoped delegation, and receipts for every action |
| Audit what happened | Receipt pages, durable references, and a record of passes and denials |
| Add trust without building the ceremony | Hosted Verify, SDK, API, and MCP on the same trust model |
Start building
One command for assistants
Run this in any project. It detects your editor and wires hosted NEUS MCP for Cursor, VS Code, Claude Code, or Codex.
npx -y -p @neus/sdk neus setup
npx -y -p @neus/sdk neus check
Then ask your assistant: "Use NEUS Verify before taking sensitive actions."
| Path | Next step |
|---|---|
| AI assistants | Install NEUS |
| MCP setup | MCP setup |
| App verification | Quickstart |
Add trust to an app
Use Hosted Verify, VerifyGate, or the SDK when your app needs a reusable trust receipt.
- Quickstart — register your app and run the workflow.
- Follow the pattern: check, verify, save, reuse.
- Use Hosted Verify when NEUS should own the browser step.
Add trust to an agent
- Agents overview — identity, scoped authority, and receipts for agents that act.
- Register identity with
agent-identity. - Add scoped authority with
agent-delegation.
Hosted MCP URL: https://mcp.neus.network/mcp
Live surfaces
| Surface | Use it for |
|---|---|
| Hosted Verify | Browser verification for users |
| Trust receipts | Portable verification records and eligibility checks |
| SDK | Verification, polling, hosted URLs, and server-side checks |
| Widgets | VerifyGate and ProofBadge for React products |
| API | Server reads, checks, verifier catalog, and verification endpoints |
| Agents | Agent identity, delegation, stable URLs, and action receipts |
| MCP | Live trust context for assistants, tools, and agent workflows |
Choose your path
| Path | Best next step |
|---|---|
| First app integration | Quickstart |
| Build a flow | Integration guide |
| React gate | VerifyGate |
| Server/API | API overview |
| Agent trust | Agents overview |
| Assistants/MCP | MCP setup |
Capability snapshot
The live verifier catalog is documented at docs.neus.network/verification/verifiers. JSON Schemas live in docs/verifiers/schemas/; the machine index is spec/VERIFIERS.json.
| Capability | Verifiers |
|---|---|
| Ownership and identity | ownership-basic, ownership-social, ownership-dns-txt, ownership-org-oauth, ownership-pseudonym |
| Human and wallet trust | proof-of-human, wallet-risk, wallet-link |
| Assets and contracts | token-holding, nft-ownership, contract-ownership |
| Content and safety | ai-content-moderation |
| Agent trust | agent-identity, agent-delegation |
This repository
Public docs, SDK (@neus/sdk), widgets, examples, specs, and the NEUS Claude Code plugin for Cursor.
Where to go next
- docs.neus.network — product docs and setup.
- Integration guide — the check, verify, save, reuse flow.
NEUS in production
| Surface | Link |
|---|---|
| Product | neus.network |
| Hosted Verify | neus.network/verify |
| Docs | docs.neus.network |
| SDK | npm: @neus/sdk |
| MCP | npm: @neus/sdk (neus setup) |
| Examples | examples/ |
| Verifier catalog | docs.neus.network/verification/verifiers |
Support
| Channel | Use for |
|---|---|
| Docs | Product and integration guidance |
| Changelog | Release notes and upgrade paths |
| Platform status | Maturity, beta scope, and upgrade expectations |
| Discussions | Questions and implementation patterns |
| Issues | Bugs and requests |
| dev@neus.network | Security |
License
- SDK and tools: Apache-2.0
- Smart contracts: BUSL-1.1 to Apache-2.0 in August 2028