Project Name:
Sovereign Archive & x402 Developer Toolkit
Name of the organization or individual submitting the proposal:
Juggernaut Labs
Include links to previous projects and/or brief background information about the individual or organization in 100 words or less.
Juggernaut Labs is an AI-native workflow orchestration platform backed by Accelerator Centre in Canada. We let teams chain 100+ LLMs and third-party APIs into multi-stage workflows, then deploy them as interactive process-driven applications—live dashboards and decision interfaces your team actually uses, not static reports. Domain experts design the logic. Engineers set the guardrails. Think of it as n8n rebuilt for AI workloads: stateful execution, multi-model reasoning, and built-in governance. Two-person team, pre-seed, shipping fast. Stack: React, TypeScript, Node.js, MongoDB.
Describe your project.
We’re building two interconnected tools that make Sia the default backbone for archiving and monetizing static workflow assets.
First, an x402-powered marketplace for process-driven applications. A process-driven application is what happens when a workflow stops being a background script and becomes an interactive interface your team engages with directly—live dashboards, approval gates, decision trees, and action triggers that update in real time as your workflow executes. Instead of static PDFs or spreadsheets, you get a living app.
Publishers bundle workflow blueprints, process templates, and training datasets for these applications. Our CLI encrypts them client-side with AES-256-GCM and pushes to Sia. Users discover assets via an indexer and pay per download through x402 micro-payments. No subscriptions. Creators keep 85% or more of every sale. We take a marketplace cover fee.
Second, a TypeScript SDK that gives Sia-Chain developers high-level storage abstractions: semanticStore() archives structured data with auto-generated metadata, smartRetrieve() enables natural language search across stored archives, archiveDataset() handles structured cold storage with integrity proofs, and grantAccess() monetizes stored data via x402. Drop it into any app to add encrypted, semantic memory without managing contracts, indexing, or encryption plumbing.
How does the projected outcome serve the Foundation’s mission of user-owned data? What problem does your project solve?
Standard platforms make you choose between convenience and ownership. Your workflow blueprints, process templates, and AI outputs sit in centralized clouds that can change terms, raise prices, or disappear. Creators can’t charge per use without building an entire storefront and payment stack. And developers building on Sia-Chain have decentralized storage but no easy SDK to let their apps use it as structured memory or monetize access.
This fixes all three. Assets live on Sia with client-side encryption. Users own their data permanently. No vendor lock-in. The x402 marketplace lets creators monetize per download instantly, creators keep 85% or more, we take a cover fee. Payments settle via x402 channels, non-custodial.
For Sia-Chain developers, the SDK removes the plumbing barrier entirely. They get semantic memory and smart retrieval with five function calls. More apps get built. More storage contracts get created. More payment channels see activity.
The outcome: user-owned data that creators can monetize directly, and developer tools that grow the Sia ecosystem from the inside out.
Are you a resident of any jurisdiction on that list?
No
Will your payment bank account be located in any jurisdiction on that list?
No
Amount of money requested and justification with a reasonable breakdown of expenses:
$10,000 USD
Core Cold Storage SDK (encryption, indexer bridge, verification): $2,500 x402 Marketplace & CLI (payment gateway, per-use pricing, creator flows, testnet validation): $3,000 Developer SDK & Abstractions (semantic memory, smart retrieval, monetization hooks, Sia-Chain bridge): $3,000 Documentation, examples, CI/CD, testing: $1,500
What is the high-level architecture overview for the grant? What security best practices are you following? Please review our Development Guide for further details.
Three layers. The Cold Storage SDK handles client-side encryption, upload, download, and integrity verification via ECDSA signatures. The x402 Marketplace manages asset bundling, indexing with pricing metadata, and micro-payments where creators keep 85% or more. The Developer SDK provides semantic abstractions that talk to the storage layer and indexer.
Architecture:
┌─────────────────────────────────────────────────────────────┐
│ JUGGERNAUT PLATFORM │
│ │
│ ┌──────────────┐ ┌─────────────────────────────────────┐ │
│ │ x402 Payment │ │ Sia-Chain Developer SDK │ │
│ │ Gateway │ │ • semanticStore() │ │
│ │ │ │ • smartRetrieve() │ │
│ │ Per-use │ │ • archiveDataset() │ │
│ │ micro-pays │ │ • verifyIntegrity() │ │
│ │ │ │ • grantAccess() [x402] │ │
│ └──────┬───────┘ └──────────────┬──────────────────────┘ │
│ │ │ │
│ └────────────┬───────────┘ │
│ │ │
│ ┌────────────▼────────────┐ │
│ │ Sia Cold Storage SDK │ │
│ │ (sia-archive-plugin) │ │
│ │ • connect(indexerUrl) │ │
│ │ • upload(bundle, meta) │ │
│ │ • download(objectId) │ │
│ │ • verify(signature) │ │
│ └────────────┬────────────┘ │
│ │ │
│ ┌────────────▼────────────┐ │
│ │ Sia Indexer │ │
│ │ (indexd) │ │
│ │ sia storage │ │
│ └────────────┬────────────┘ │
│ │ │
│ ┌────────────▼────────────┐ │
│ │ Sia Blockchain │ │
│ │ Storage Contracts │ │
│ │ Host Collateral │ │
│ │ x402 Payment Channels │ │
│ └─────────────────────────┘ │
└─────────────────────────────────────────────────────────────┘
Security: App ID hardcoded per deployment. App Key derived locally via BIP-39 + App ID using ethers.js—we never see your keys. AES-256-GCM encryption happens client-side before data leaves the device. ECDSA signatures verify every bundle before install or retrieval. x402 payments settle via channels with a marketplace cover fee; we never hold creator funds. Data is erasure-coded across the network.
What are the goals of this small grant? Please provide a general timeline for completion.
12 weeks. Three phases with specific deliverables per week.
Phase 1: SDK Foundation & CLI Scaffolding (Weeks 1–4)
Focus: Establish the core cryptographic SDK and initial packaging CLI tools to set up the base infrastructure.
Week 1: Establish functional local dev environment. Scaffold the core @juggernautjuggernaut/sia-archive package with initial indexer connectivity and configuration management.
Week 2: Implement and rigorously test client-side key derivation using BIP-39 recovery phrases combined with App ID via ethers.js. Build AES-256-GCM encryption and decryption logic.
Week 3: Implement core upload and download methods in the SDK. Integrate crypto modules. Publish the initial version of the package to npm.
Week 4: Scaffold the Asset Packaging CLI. Implement bundle creation, cryptographic signing with secp256k1 ECDSA, and the core SDK indexer bridge. Build the package command.
M1 Review Milestone: Validate core SDK encryption/upload capabilities and verify the initial CLI bundle creation.
Phase 2: Marketplace Integration & Base Abstractions (Weeks 5–8)
Focus: Build out the monetization gateway, execute marketplace flows, and begin abstracting developer tools.
Week 5: Implement indexer schema specifically for marketplace assets with x402 pricing metadata. Build the x402 payment gateway client for per-use micro-payments.
Week 6: Execute end-to-end marketplace flow: publish \rightarrow index \rightarrow x402 payment negotiation \rightarrow install \rightarrow verify. Validate creator payouts on testnet (creators keep 85% or more).
Week 7: Merge phase deliverables. Conduct integration testing between CLI, x402 gateway, and Sia plugin. Complete code reviews and fix critical bugs.
Week 8: Scaffold the Developer SDK. Build semanticStore() and archiveDataset() abstractions with auto-generated metadata and integrity proofs.
M2 Review Milestone: End-to-end demonstration of the x402 marketplace payment flow and verification of the initial data abstraction layers.
Phase 3: Advanced Abstractions, Hardening & Deployment (Weeks 9–12)
Focus: Finalize advanced developer queries, execute rigorous security reviews, and deploy to staging for launch.
Week 9: Implement smartRetrieve() with natural language metadata querying via indexd. Add grantAccess() with x402 pricing for monetized data access. Build Sia-Chain bridge.
Week 10: Finalize and validate both primary use cases through automated testing. Test app read/write cycles and monetized data access. Resolve bugs and demonstrate workflows locally.
Week 11: Achieve code quality metrics including test coverage and documentation. Establish CI/CD pipeline. Provision staging environment. Execute security review of crypto and x402 modules.
Week 12: Deploy all services to staging. Execute end-to-end tests including load testing for indexer queries and x402 payment throughput. Address security findings. Prepare final project demonstration and open-source release.
M3 Review Milestone: Production-ready sign-off, security audit review, and final live demonstration of the open-source release.
Who is the target user for your project?
Workflow blueprint creators who want per-use payments instead of subscriptions. Enterprise teams building AI orchestration and process-driven apps without devops overhead. Sia-Chain developers who need storage abstractions and monetization hooks. Platform builders distributing tamper-proof process templates.
What are your plans for this project following the grant?
Expand x402 to tiered access: free previews, paid full datasets, enterprise bundles. Build an audit ledger using indexd to cryptographically prove data lineage and payment history. Host developer workshops on monetizing storage with x402. Apply for a Standard Grant focused on high-availability orchestration.
Potential risks that will affect the outcome of the project:
Security review finds critical flaw in key derivation, encryption, or x402 payment flow. Mitigation: Engage the security auditor at the end of Phase 1 to review only the cryptographic and payment modules early. This provides feedback before the rest of the system is built on top.
Indexer latency under load does not meet acceptable thresholds for retrieval or x402 verification. Mitigation: Develop a load testing script for indexd in Phase 2 and run it against the testnet instance to get an early performance baseline. As a contingency plan, implement a caching layer (e.g., Redis) in the Juggernaut backend for popular marketplace queries to reduce direct hits to indexd.
x402 marketplace or Developer SDK fail to gain traction. Mitigation: Engage with a small group of power users or design partners throughout the development process. Demo progress at each milestone to gather feedback and ensure the features solve a real problem. If the marketplace shows low interest but the storage plugin is highly valued, reallocate remaining time to add more features to the plugin.
Will all of your project’s code be ope@juggernaut**-source?**
Yes. The @juggernaut/sia-archive SDK, x402 marketplace specification, and Developer SDK will be MIT/Apache 2.0. The Juggernaut platform itself remains proprietary to maintain enterprise security standards.
Leave a link where code will be accessible for review.
Code will be published at juggernautlabsai · GitHub upon grant approval.
Links.
npmjs.com/package/@juggernautlabs/plugins
npmjs.com/package/@juggernautlabs/cloud
Do you agree to submit monthly progress reports?
Yes
Email:
\
Any other preferred contact methods:
Discord or Telegram on request.