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By ApiCharge
Enables AI developers to monetize ML models and workflows via pay-per-call APIs using Stellar stablecoin micropayments.
The existing products and services are described below. The additions and improvements are detailed in the tranches area. It is important to recognize that ApiCharge is a broad platform that removes friction in all aspects of productionising and monetising any kind of digital service and that this submission is narrowly focused on ML/AI use cases to help creators and ML developers productionise their work without behemoth middlemen or the alternative of DIY business and IT development. It is largely developed but needs a push to get it across the line through public beta and fully live with the initial set of users in the ML and AI space. Moreover, one ApiCharge template to be released in the coming weeks is ApiCharge Stellar RPC - a Stellar RPC server that accepts stablecoin micropayment for usage. This means that anyone will be able to host and monetize Stellar RPC servers commercially. It will also offer feebump transaction sponsorship and account activation sponsorship by adding two new endpoints for sending transactions and creating accounts. This means that in addition to the ML/AI use case, the early version will transform the Stellar network to offer the same stable-native UX that L1s like ARC or TEMPO are aiming for, at no extra cost, allowing user onboarding, account activation and service consumption with stablecoin USD or EUR alone.
1. ApiCharge Payment Gateway Network reverse proxy that intercepts API requests and gates access through Stellar Soroban authorization signatures before forwarding to backend services. Supports multiple protocols including HTTP and streaming protocols like WebSocket and Server-Sent Events, plus REST, GraphQL, RPC, gRPC, with HTTP/1.1, HTTP/2, and HTTP/3 compatibility. Uses USDC/EURC stablecoins on Stellar for flexible payment models from sub-cent micropayments to month or year-long access purchases, with negligible fees that traditional payment rails cannot support. Offers pricing control through mutually signed promises and Quality of Service guarantees enforced by signed purchases, with a dedicated Soroban smart contract acting as neutral third-party witness ensuring both parties honor their commitments.
2. Cross-Platform Desktop Client Avalonia-based application for Windows/Mac/Linux that manages pricing configuration, service levels, service deployments, and infrastructure. Includes built-in Stellar wallets using double encryption and platform secure storage, with integrated fiat on-ramp via Stripe. Simplifies developer onboarding by abstracting Stellar complexity while maintaining non-custodial control of funds.
3. Vast.ai Integration Streamlined deployment system that provisions ApiCharge-enabled GPU servers on Vast.ai. Users deploy ML models and ComfyUI workflows without understanding Docker, Stellar, or infrastructure - the system handles configuration and payment routing. Stellar smart contracts automatically split revenue between compute providers and model creators.
4. Docker-based ApiCharge Templates for ML Monetization Pre-configured containers for popular ML frameworks (TensorFlow Serving, ComfyUI, custom models) with integrated ApiCharge gateway. Enables developers to monetize existing models on any infrastructure, not just Vast.ai, while maintaining the same Stellar payment benefits.
5. OpenAPI Documentation & Testing Interface Scalar-powered interactive documentation with built-in testing capabilities for all ApiCharge endpoints. Stellar's fast finality (~5 seconds) enables near-real-time payment verification in the test environment, letting developers experience the pay-per-use flow immediately without complex integration work.
6. Service Marketplace Apicharge.com list of published services for discovery and consumption using ApiCharge native apps (like the Cross Platform Native Client) or programatic consumption using the automatically generated server ApiCharge protocol API.
Yes
$79.0K
By the mainnet tranche completion I would like to see a viable platform to compete with Replicate.com, Fal.ai, Civitai , aspects of HF, and a growing number of users that should already be 10s of regular creators with 1000s to 10000s of indirect users (for ML/AI use cases) paying for creator access. However, the stablecoin movement and growing noise around Stable native L1s and apps might bring much more traffic just to the Stablecoin Stellar RPC node alone, which is hard to predict, and if x402 usage grows heavily, then ML/AI ApiCharge templates (which would also support x402 comms by then) might start to accumulate discovered AI agent consumption. So there is a blessing and risk that usage might grow too fast.
Going to market will start to be in progress with a limited cohort from within a few weeks. Revenues are referrals and commission on mainnet usage. The whole series of improvements is aimed at tailoring the platform to the ML/AI developer, the initial target audience, improving and increasing usage . Also, the Stellar RPC Stablecoin gateway should begin to gain usage as soon as it is produced, likely within 1 to 2 weeks of this message.
Right now the platform is slowly transitioning to public beta and held up on Apple approval process, delays incurred by MoonPay - switched to Stripe, and needs more ML/AI use case specific dev. The mainnet contract is deployed, but subject to change in the sense that we might again have to produce a new version (we do not want updatable contracts). But traction evidence in the near future will be easily followed by:
- Contract activity (I can supply the contract id to whoever will receive the updated contract ids) as this tracks all purchases
- Vast.ai referals
- Docker image downloads
The deliverable breakdown is as follows:**
Deliverable 1: Cross-Platform Distribution & Code Signing
Brief description: Signed, distributable ApiCharge desktop applications for Windows, macOS, and Linux, plus non-Docker server deployment options
How to measure completion:
GitHub issues #1, #2, #17, #18 closed
Signed installers available for download on all three platforms (Windows .exe, macOS .dmg, Linux .deb/.rpm)
Base ApiCharge Docker image published to registry with Stellar RPC hidden by default
Non-Docker installation documentation published and tested
Successful installation and launch verified on each platform
Estimated date of completion: By or before end of Tranche 1 milestone (January 16, 2026)
Budget: $8000
Brief description: Public marketplace for API discovery, transaction history integration, and seamless API purchase flows via deeplinks
How to measure completion:
GitHub issues #3, #6, #22 closed
Public marketplace accessible at [URL] with at least 3 listed APIs
Transaction history window displays real data from Stellar RPC (not test data)
Avalonia deeplinks functional - clicking payment links opens desktop app to purchase page
End-to-end test: discover API → purchase via deeplink → transaction appears in history
Estimated date of completion: By or before end of Tranche 1 milestone (January 16, 2026)
Budget: $8000
Brief description: Enhanced HTTP 402 responses with developer guidance and improved Stellar RPC template functionality
How to measure completion:
GitHub issues #11, #24 closed
HTTP 402 responses include: (1) new user guidance links, (2) AI agent integration prompts
Stellar RPC template demonstrates Feebump functionality
Stellar RPC template demonstrates Account creation functionality
Documentation published showing both new features
Test cases pass for all new template functions
Estimated date of completion: By or before end of Tranche 1 milestone (January 16, 2026)
Budget: $7000
Brief description: Production-ready ML/AI monetization template with local model library management, validated with user cohort
How to measure completion:
GitHub issues #16, #28, #34 closed
Mainnet images and templates deployed and publicly accessible
At least one AI/ML template (e.g., ComfyUI workflow host) built and documented
ML Model/Workflow Local Library Manager functional
User cohort testing completed with at least 5 developers providing feedback
Template successfully monetizes at least one AI/ML workflow
Published case study or demo video showing end-to-end usage
Estimated date of completion: By or before end of Tranche 1 milestone (January 16, 2026)
Budget: $12000
The deliverable breakdown is as follows:**
Deliverable 1: Enhanced Payment Protocol
Brief description: Improved HTTP 402 payment-required responses with embedded purchase instructions and x402 protocol compatibility for broader ecosystem integration
How to measure completion:
GitHub issues #10, #30 closed
HTTP 402 responses include purchase instruction, quote, and auth-to-sign (or all three)
x402 protocol compatibility implemented and documented (if feasible)
Interoperability test with at least one x402-compatible client
Published integration guide showing both enhancements
Estimated date of completion: By or before end of Tranche 2 milestone (February 10, 2026)
Budget: $7000
Brief description: Expanded library of ML/AI monetization templates with Hugging Face integration for broader model ecosystem support
How to measure completion:
GitHub issues #29, #35 closed
At least 1 additional ML/AI templates published and documented (beyond TorchServe , TensorFlow Serving and ComfyUI workflow support)
Hugging Face model provider integrated into catalogue
Each template includes working example and deployment guide
At least one template demonstrates Hugging Face model monetization on mainnet
Estimated date of completion: By or before end of Tranche 2 milestone (February 10, 2026)
Budget: $12000
Brief description: Desktop application enhancements for managing private deployments with comprehensive usage documentation
How to measure completion:
GitHub issues #8, #27 closed
Usage guide published and accessible within web interface
Desktop manager can add, monitor, and manage machines on private hosts
Documentation covers: installation, configuration, deployment, and troubleshooting
User testing confirms guide completeness with at least 3 new users successfully deploying
Estimated date of completion: By or before end of Tranche 2 milestone (February 10, 2026)
Budget: $2000
The deliverable breakdown is as follows
Deliverable 1: Payment Infrastructure Expansion
Brief description: Additional fiat on/off ramp integrations to reduce friction for non-crypto-native users
How to measure completion:
GitHub issue #33 closed
At least 1 additional fiat ramp integrations live and functional
Documentation published for each ramp integration
End-to-end test: fiat → USDC/EURC → API payment completed successfully
User testing confirms reduced onboarding friction
Estimated date of completion: By or before end of Tranche 3 milestone (February 27, 2026)
Budget: $3000
Brief description: Serverless scaling integration enabling automatic resource provisioning for high-demand API services
How to measure completion:
GitHub issue #32 closed
Integration with at least one serverless scaling provider (e.g., AWS Lambda, Google Cloud Run, or similar)
Auto-scaling demonstrated under load testing
Documentation published for serverless deployment patterns
Case study showing API scaling from low to high traffic automatically
Estimated date of completion: By or before end of Tranche 3 milestone (February 27, 2026)
Budget: $10000
Brief description: Immutable smart contract deployment and updated legal framework for production platform operation
How to measure completion:
GitHub issue #31 closed
Smart contract finalized, audited, and deployed in immutable form on Stellar mainnet
Contract address published and verified
Legal documentation updated to reflect final contract terms
Terms of service, privacy policy, and platform agreements published
Legal review completed and sign-off obtained
Estimated date of completion: By or before end of Tranche 3 milestone (February 27, 2026)
Budget: $10000
Just me for now, with the support of family and friends https://www.linkedin.com/in/frank-szendzielarz-a0041089/
Frank Szendzielarz
No other submissions.