> For the complete documentation index, see [llms.txt](https://docs.zetrix.com/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zetrix.com/en/developer-resources/agentic-wallet/message-flows.md).

# Message flows

Three reference flows show the protocol end-to-end: bootstrapping a free agent credential (MVP), buying and proving a paid credential (POC), and proving a claim in zero-knowledge without revealing the underlying data.

* [Flow 1, MVP agent credential issuance (no payment)](/en/developer-resources/agentic-wallet/message-flows/flow-1-mvp-agent-credential-issuance.md)
* [Flow 2, Zetrix BaaS access and payment (x401 + x402)](/en/developer-resources/agentic-wallet/message-flows/flow-2-baas-access-and-payment.md)
* [Flow 3, zero-knowledge proof flow](/en/developer-resources/agentic-wallet/message-flows/flow-3-zero-knowledge-proof-flow.md)