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Agent identity and trust
Agent identity and trust lists 4 Identity and trust entries in alphabetical order. Every identity and trust listing, listed alphabetically by name. Nothing on the page is scored. The names are ERC-8004, Microsoft Entra Agent ID, Visa Trusted Agent Protocol, Web Bot Auth.
Last verified 2026-10-16 to 2026-10-19
Sources
- ERC-8004 Trustless Agents
- ERC-8004 reference contracts
- What is Microsoft Entra Agent ID
- Overview of agent identities in Microsoft Entra
- Visa Developer Center: getting started with Trusted Agent Protocol
- Visa press release introducing Trusted Agent Protocol (Oct 14, 2025)
- Visa press release on live agentic transactions in Europe (Jul 2, 2026)
- Trusted Agent Protocol reference code on GitHub (Visa terms, not an open source license)
- Cloudflare Web Bot Auth documentation
- Google guide to Web Bot Auth
- IETF webbotauth working group draft: HTTP Message Signatures for automated traffic
4 listingsIdentity and trust
| Name | Status | Open source | Mechanism |
|---|---|---|---|
| ERC-8004 | Designed | Yes | Draft Ethereum proposal for three registries: an ERC-721 identity that points at an agent registration file, a reputation registry, and a validation registry. registries, reputation, ethereum |
| Microsoft Entra Agent ID | Live | No | Identity platform that creates agent identities from blueprints and applies Entra access policy, risk checks, and audit logs to them. enterprise, oauth, audit |
| Visa Trusted Agent Protocol | Live | No | Visa specification for merchants to verify an approved agent from an RFC 9421 HTTP message signature bound to the site and the action, with optional consumer and payment identifiers. Visa reports live agent purchases at European merchants through it and its Agent Directory. http-signatures, merchants, cards, agent-verification |
| Web Bot Auth | Beta | Yes | Method for an automated client to sign HTTP requests so a site can verify which bot or agent sent them. The signature rules are an IETF working group draft, not yet a standard. http-signatures, bots, draft |
Questions
- How many listings match Agent identity and trust?
- 4 listings match. The list is alphabetical.
- Which listings are on Agent identity and trust?
- ERC-8004, Microsoft Entra Agent ID, Visa Trusted Agent Protocol, Web Bot Auth.
Comparisons
Pairs in this filter where both listings have source URLs.