> For the complete documentation index, see [llms.txt](https://docs.ipor.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ipor.io/build-on-fusion/developer-guide.md).

# DEVELOPER GUIDE

- [Quick Start Guide](https://docs.ipor.io/build-on-fusion/developer-guide/quick-start-guide.md): Video walkthrough of creating and configuring a vault via the webapp, plus the SDK/agent path for programmatic deployment.
- [MCP](https://docs.ipor.io/build-on-fusion/developer-guide/mcp.md): Connect to the hosted Fusion MCP server: tools, resources, prompts and a worked example for inspecting vaults.
- [Deploy your first Fusion vault](https://docs.ipor.io/build-on-fusion/developer-guide/deploy-your-first-fusion-vault.md): The executed eleven-transaction SDK walk to clone, configure and fund a Fusion vault from scratch.
- [Addresses](https://docs.ipor.io/build-on-fusion/developer-guide/addresses.md): Canonical IporFusionFactoryProxy addresses per chain, verified against the ipor-abi registry.
- [Common Errors](https://docs.ipor.io/build-on-fusion/developer-guide/common-errors.md): Revert selectors and the role table for the errors most likely to block a Fusion vault deployment.
- [Smart Contracts](https://docs.ipor.io/build-on-fusion/developer-guide/smart-contracts.md): DeepWiki-hosted architecture reference for the ipor-fusion smart contracts.
- [Developing a Fuse](https://docs.ipor.io/build-on-fusion/developer-guide/developing-a-fuse.md): How to write a new Fuse: the interface contract, conventions and registration process.
- [Balance Fuses](https://docs.ipor.io/build-on-fusion/developer-guide/balance-fuses.md): What a Balance Fuse tracks and how it pairs with a Functional Fuse for a market.
- [External State Fuse](https://docs.ipor.io/build-on-fusion/developer-guide/balance-fuses/external-state-fuse.md)
- [General share price calculation rules](https://docs.ipor.io/build-on-fusion/developer-guide/general-share-price-calculation-rules.md): How a Plasma Vault's share price is computed and what can move it.
- [Accounting and PPS Protection](https://docs.ipor.io/build-on-fusion/developer-guide/accounting-and-pps-protection.md): How the vault protects its price-per-share against manipulation and accounting edge cases.
- [Price Oracle Middleware](https://docs.ipor.io/build-on-fusion/developer-guide/price-oracle-middleware.md): How the price oracle middleware resolves asset prices and how to add or override a feed.
- [Pause Functionality](https://docs.ipor.io/build-on-fusion/developer-guide/pause-functionality.md): What pausing a vault does, who can trigger it, and its effect on in-flight operations.
- [Configuring Pre-hooks](https://docs.ipor.io/build-on-fusion/developer-guide/configuring-pre-hooks.md): How to attach pre-execution validation hooks (e.g. rate limits, price checks) to vault functions.
- [Security and Audits](https://docs.ipor.io/build-on-fusion/developer-guide/security-and-audits.md): IPOR's internal QA process, AI-assisted audit tooling, and the list of completed third-party audits with scope and reports.
- [Open-source Repository](https://docs.ipor.io/build-on-fusion/developer-guide/open-source-repository.md): Where the Fusion smart-contract source lives and how it's licensed.
- [API](https://docs.ipor.io/build-on-fusion/developer-guide/api.md): Base URL, endpoints, address-casing and error-format details for calling the public Fusion API directly.
- [Cross-Chain Vault Integration - Technical Overview](https://docs.ipor.io/build-on-fusion/developer-guide/cross-chain-vault-integration-technical-overview.md): Technical detail behind cross-chain vault integration: NAV attestation and emergency recovery roles.