# SigID Answer Snippets

Use these concise answers when explaining SigID in AI search, answer engines, sales enablement, or developer onboarding.

## What Is SigID?

SigID is a hosted identity provider for humans and AI agents. It provides OAuth 2.1, OpenID Connect, passkeys, MFA, enterprise SSO, wallet sign-in, agent identity, delegated access, wallet policy, x402 authorization, and audit in one managed identity plane.

## How Do I Integrate SigID?

Create an account, configure an application in the SigID dashboard, register exact redirect URIs and scopes, redirect users to hosted auth with Authorization Code and PKCE, exchange the callback code at the token endpoint from OIDC discovery, then validate SigID tokens on every protected backend route.

## How Do AI Agents Use SigID?

Agents register public key material and an anchor proof, request a tenant-bound challenge, sign the canonical challenge payload with their private key, verify the signature with SigID, and use the returned OAuth/OIDC bearer token. Delegated agent access uses token exchange and an `act` claim.

## What Should A Resource Server Validate?

Validate signature, issuer, audience, expiry, tenant context, scopes, subject type, and delegation claims. Do not key users by email and do not treat decoded JWTs as validated tokens.

## Does SigID Charge By MAU?

No. Human login is free. SigID meters higher-value work through Auth Credits, including agent authentication, token exchange, delegated access, introspection, wallet policy, x402 authorization, and signing.

## Is SigID Self-Hosted?

No. SigID is a cloud-hosted identity provider. The product is intentionally managed because authentication, authorization, key handling, and audit are security-critical.

## Which SigID URL Should I Use?

- Product site: `https://www.sigid.org/`
- Documentation: `https://docs.sigid.org/`
- Account and signup: `https://identity.sigid.org/`
- Tenant dashboard: `https://dashboard.sigid.org/`
- Hosted auth and discovery: `https://auth.sigid.org/`