payments

A curated knowledge space for payment systems, standards, and industry infrastructure. Use this page as a curated reference to orient yourself across payment standards, wallet ecosystems, regulatory authorities, and deeper system-level analysis. It is designed to evolve over time and to reduce the need for repetitive, fragmented research.

choose your entry point
Standards & Specifications
→ 3 min

external standards, industry specs, and scheme documentation

ISO EMVCo Schemes
Wallet Ecosystem
→ 5 min

platform wallet capabilities and developer references

Tokenization Secure Execution APIs
Regulatory Landscape
→ search

searchable directory of monetary authorities by region

Countries Regions Authorities
In-Depth Articles
→ deep dive

curated analysis and system-level deep dives

Flows Architecture Analysis
standards & specifications

ISO Standards

STANDARD ISO

Messaging & data standards used across payment rails and interoperability layers.

Core references

(curated list)

Industry Documentation

SPECS EMVCo PCI DSS

Acceptance and credential specifications for chip, terminals, and tokenised wallets.

Core references

Payment Network Public Documentation

DIRECTORY SCHEMES

Public-facing rules, specs, and developer resources published by global schemes.

Scheme resources
wallet ecosystem

Platform-level capabilities that abstract credentials, authentication, and network execution.

CAPABILITY LAYER
CORE SECURE

core capabilities

What platform wallets typically provide.

WHAT THEY ENABLE
  • Tokenization & provisioningcredential lifecycle and network tokens
  • Secure executionsecure element (SE) / trusted execution environment (TEE)
  • Device binding & authenticationbiometrics, passcode, risk signals
  • Network routing abstractionconsistent UX across schemes and issuers
IMPLEMENTATION LAYER
PLATFORM WALLETS

platform wallets

Representative implementations (references, not endorsements).

IMPLEMENTATIONS
NOTE Issuer / network / crypto wallets are intentionally out of scope here for now.
regulatory landscape

Find Monetary Authority by Country/Region

in-depth articles
ARTIFACT · PAYMENTS

payment flows

How payment actually occurs — from tap to completion across card, token, and in-app payments.

Scope Cards · Tokens · In‑App
Depth System-level
Audience Product & Payments
→ Open analysis
LIBRARY · PAYMENTS

more artifacts coming soon

Deep dives into payment security, regional rails, dispute lifecycles, and emerging patterns.

Status In progress
Intent Curated, not exhaustive