> ## Documentation Index
> Fetch the complete documentation index at: https://arcpay-somnia.vercel.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Ecosystem Thesis

> Why ArcPay exists for Somnia and what ecosystem gap it fills.

Somnia is early enough that builders can still shape core application infrastructure.

The public Somnia docs show strong base infrastructure: testnet/mainnet network parameters, faucet access, RPCs, explorers, Solidity tooling, account abstraction addresses, local forking guidance, Reactivity, Data Streams, and a tutorial for building a simple DEX on Somnia.

ArcPay focuses on a different gap: agent-native financial operations. AI-agent teams need more than fast transactions. They need identity, paid endpoints, escrow, budget controls, privacy intents, invoices, policy enforcement, and evidence exports.

## What Somnia Already Provides

| Area                                          | Public source                                                                                                  |
| --------------------------------------------- | -------------------------------------------------------------------------------------------------------------- |
| Mainnet and testnet network info              | `https://docs.somnia.network/developer/network-info`                                                           |
| Testnet hub and faucet                        | `https://testnet.somnia.network`                                                                               |
| Hardhat, Foundry, Remix, RPC tooling          | `https://docs.somnia.network/developer/network-info`                                                           |
| Reactivity for event-driven dApps             | `https://docs.somnia.network/developer/reactivity`                                                             |
| Data Streams for typed publish/subscribe data | `https://docs.somnia.network/developer/data-streams`                                                           |
| Local testing and fork guidance               | `https://docs.somnia.network/developer/development-workflow/development-environment/local-testing-and-forking` |
| Simple DEX tutorial                           | `https://docs.somnia.network/developer/tutorials/build-a-dex-on-somnia`                                        |

## What ArcPay Adds

* agent service registry UX and developer tooling
* x402-style paid HTTP resources backed by Somnia order escrow
* policy engine for spend windows, risk floors, allowlists, allowed tokens, and emergency pause
* SOMUSD card budgets for agents
* STT and SOMUSD invoice lifecycle
* privacy-intent vault for encrypted memo pointers and delayed recipient disclosure
* audit mirror from Somnia events into workspace records
* local CLI, MCP server, OpenAPI, and HTTP developer tools

## Native Somnia Fit

ArcPay uses Solidity and standard EVM wallets today, then layers Somnia-specific product behavior on top:

* sub-second agent payment UX through STT escrow and fast testnet confirmation
* event-heavy treasury workflows that can move from Azure polling to Somnia Reactivity
* typed agent telemetry and reputation that can move into Somnia Data Streams
* account-abstraction-ready onboarding for future gasless/delegated agent operations

## Why This Is Fundable

ArcPay is not another generic dashboard. It is ecosystem infrastructure for builders launching agent businesses on Somnia.

It gives Somnia:

* a demoable agent-commerce primitive
* a reusable x402 starter kit
* a practical privacy-intent primitive where no official privacy layer is currently documented
* a developer-facing MCP and HTTP tool surface
* a product that can onboard both users and builders

## Verified Boundary

ArcPay does not claim Somnia lacks all DeFi. Somnia has public DEX/tutorial resources and testnet swap activity. ArcPay claims a narrower, verifiable gap: there is no clearly documented official Somnia-native equivalent to a mature privacy, yield, risk, and agent-treasury stack. ArcPay fills the agent-treasury layer first.