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One receipt id (proofId in API responses) — check before re-verifying. Same pattern for people, agents, orgs: SDK, widgets, API, MCP, shareable proof URLs.
Start: Hosted Verify · Get started · Choose a path · Agents

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Capabilities

Universal identity

Resolve wallets, domains, socials, and agents from one profile: card URL, DID, or MCP lookup.

Reusable receipts

Store proofId. GateCheck / API / widgets — skip repeat verification.

MCP & assistants

Hosted MCP tools + handoff URLs to Hosted Verify when a browser step is required.

Gates & billing

Sponsors, credits, x402 — org-paid and self-serve paths.

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Common uses

Use caseDocumentation
Identity + linked accountsAgents · Wallet link · Hosted Verify
Access with saved receiptsIntegration · gateCheck
Token, NFT, domain gatesExamples · NFT gating · Domain
Tooling / IDEMCP

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Start here

Get started

Hub account, billing, then check → verify → save once.

Choose a path

SDK · widgets · API · MCP.

Integration

Check → verify → save → reuse.
Quickstart · Widgets · MCP

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Explore

Platform

URLs, setup, receipts, billing.

Verification

Verifiers, lifecycle, signing.

Agents

Identity, delegation, presets.

MCP

Assistants and IDEs.

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Verifiers

Verifier catalog — capability pages under Verification.

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Resources

Hosted verify · Hub · Where NEUS is hosted (verify, API, MCP)