generated: '2026-07-19'
method: derived
source: >-
  Derived from docs.towns.com, the first-party siwe / encryption packages, the
  public protobuf definitions, and the published MiCA whitepaper. Asserts which
  cross-cutting industry standards the Towns Protocol surface conforms to, with
  evidence. Absence/false is honest data.
provider: Here Not There Labs
product: Towns Protocol
standards:
- id: eip-4361-siwe
  name: Sign-In with Ethereum (EIP-4361)
  conforms: true
  evidence: First-party siwe library published by the org; connectTowns / signAndConnect auth flow.
- id: connect-grpc
  name: Connect / gRPC (protobuf, proto3)
  conforms: true
  evidence: protocol/*.proto define StreamService, AppRegistryService, AuthenticationService; @towns-protocol/rpc-connector wraps @connectrpc/connect-node.
- id: e2e-encryption
  name: End-to-end encryption (Double Ratchet)
  conforms: true
  evidence: "@towns-protocol/encryption using olm/vodozemac (Double Ratchet); docs.towns.com/build/towns-encryption."
- id: mica
  name: EU Markets in Crypto-Assets (MiCA) disclosure
  conforms: true
  evidence: Published MiCA whitepaper at docs.towns.com/white-paper/mica-whitepaper.
- id: erc-721
  name: ERC-721 (Space ownership NFTs)
  conforms: true
  evidence: Spaces are ownable via on-chain ERC-721 Space contracts; docs.towns.com/towns-smart-contracts/space-ownership.
- id: oauth2
  name: OAuth 2.0
  conforms: false
  evidence: No OAuth authorization server; auth is wallet-signature (SIWE) based.
- id: oidc
  name: OpenID Connect
  conforms: false
  evidence: No OIDC discovery document served (/.well-known/openid-configuration -> 404).
- id: rfc9457
  name: RFC 9457 Problem Details
  conforms: false
  evidence: RPC errors use Connect/gRPC status codes, not application/problem+json.
- id: fapi
  name: FAPI
  conforms: false
  evidence: Not a financial-grade OAuth API.
- id: scim
  name: SCIM
  conforms: false
  evidence: Identity is wallet/on-chain, not SCIM-provisioned.
- id: fhir
  name: FHIR
  conforms: false
  evidence: Not a healthcare API.