Coinbase

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Explore the top contributors showcasing the highest number of app submissions within our community.

Coinbase

Coinbase is a leading cryptocurrency exchange and blockchain infrastructure company founded in 2012. The company provides a comprehensive platform for buying, selling, and managing cryptocurrencies, along with developer tools and infrastructure services that enable builders to create innovative Web3 applications. Coinbase's developer platform, Coinbase Developer Platform (CDP), offers APIs, SDKs, and services that simplify blockchain integration and payment processing.

General
Company	Coinbase
Founded	2012
Repository	https://github.com/coinbase

Start building with Coinbase's products

Coinbase offers a wide range of developer tools and services that empower developers to build next-generation Web3 applications. From payment protocols like x402 that enable AI-to-AI payments, to wallet infrastructure and blockchain APIs, Coinbase's developer platform provides the tools needed to integrate cryptocurrency and blockchain functionality into applications. Explore the possibilities with Coinbase's solutions and see what you can create during lablab.ai hackathons.

x402

x402 is an HTTP-native payment protocol that enables AI agents and applications to make programmatic payments without accounts, credit cards, or manual approvals. Built on EIP-3009, x402 turns the unused HTTP 402 status code into a working payment system that allows autonomous agents to discover, understand pricing, and pay for API access automatically. Learn more about x402.

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Coinbase AI Technologies Hackathon projects

Discover innovative solutions crafted with Coinbase AI Technologies, developed by our community members during our engaging hackathons.

ReproClaw: Pay Per Claim AI Audits

ReproClaw is a pay per claim reproducibility audit agent for AI research. A user submits an arXiv paper and GitHub repository, and ReproClaw extracts scientific claims, maps each claim to code evidence, checks for mismatches, and generates a verifiable audit report. For example, if a paper claims a model was trained for 200 epochs or achieved 81.5 percent accuracy, ReproClaw searches the implementation, config files, README, and evaluation scripts to verify whether the code supports that claim. The system produces a reproducibility score, verified claims, flagged claims, and reviewer ready explanations. For the Agentic Economy on Arc hackathon, we extend ReproClaw with usage based payments. Instead of charging for a full expensive review, users can pay per claim, per repo search, per citation check, or per dynamic execution. Circle Nanopayments and USDC make this possible by enabling small, high frequency, gas free payments for individual agent actions. ReproClaw turns scientific verification into an on demand agentic service: transparent, modular, and economically aligned with actual usage.

Arc Power

nano-agent treats cost as a live reasoning input. At every step, the agent decides: proceed, downgrade to a cheaper model, or skip — governed by a real USDC budget settled on Arc via Circle Gateway. Gemini 2.0 Flash handles fast inference, function calling, and Google Search grounding. Gemini 2.5 Pro verifies factual claims. Each tool call triggers HTTP 402 — the agent signs an EIP-3009 USDC authorization and retries with payment proof. Circle Gateway settles micropayments on Arc in under a second at sub-cent cost. A live dashboard shows spend, earned, step count, and model-tier decisions in real time. Benchmark: 416 steps · $0.240 spent · $0.276 earned · +15% margin · $0.0006/action average. A screen recording shows a $0.25 live run — budget bar draining, model tier switching, decision log printing go · downgrade · skip. Economy view breaks down cost: 77% data, 17% LLM, 4% verification. Two agent wallets earn independent revenue. TAM is $200B+ AI infrastructure. SAM is $15B agentic API economy — every autonomous agent calling external services is a potential payer. Revenue comes from per-step settlement margin, SDK licensing, and premium x402 tool endpoints with built-in payment rails. LangChain, AutoGen, and CrewAI treat cost as post-hoc billing. nano-agent makes it a real-time constraint on behavior. The Arc economics are the moat: the same 417 actions cost roughly $834 in Ethereum gas — 3,475 times more expensive — making per-step micropayments impossible anywhere else. On Arc mainnet, multi-agent economies — agents hiring agents, earning revenue — become self-sustaining. Every x402-compatible API becomes a paid tool layer. nano-agent is the budget runtime that keeps those economies solvent.

ARC-Agents Marketplace

Agents Market is a demo marketplace for autonomous agents and their tools on Circle Arc (testnet). Sellers onboard listings with per-tool USDC pricing; the app supports discovery, catalog views, and payment-gated invocation of seller-configured HTTP providers. The stack implements two payment rails so different buyers can participate without one-size-fits-all custody. External buyers integrate Circle Gateway Nanopayments over standard HTTP 402 flows (e.g. via circlekit on arcTestnet), which fits agent-to-agent and pay-per-call use cases. Registered marketplace buyers use USDC on ARC-TESTNET through Circle developer-controlled wallets, including automatic wallet provisioning when no address is supplied, on-chain USDC transfers for settlement, and optional ERC-8004-style lifecycle hooks for agent registration and reputation on Arc. The FastAPI backend combines marketplace CRUD, SQL persistence for usage and payment events, provider proxying with safety checks on outbound hosts, and APIs that expose a clear description of which rail was used. The React frontend supports browsing agents, registering listings, editing tool prices, and reviewing activity with Arcscan links so judges and developers can verify flows on chain. Together, the project shows how USDC-first infrastructure, nanopayments, and hosted wallets can support a scalable pattern for monetized agent commerce.

Arc Data Piper

ArcDataPiper is a revolutionary "Pay-as-you-Heal" infrastructure layer designed to solve the $3.1 trillion problem of data quality and pipeline downtime. Traditional data monitoring relies on expensive, static subscriptions that alert humans but don't fix problems. ArcDataPiper flips the script by turning infrastructure health into a granular economic commodity. Built on the Arc Network, the system utilizes Circle Nanopayments to implement a "Pay-as-you-Live" monitoring model: you only pay for monitoring as long as your stream is healthy. When Schema Drift is detected in a Kafka/Redpanda stream, the LangGraph-driven orchestrator pauses billing and hires a "Recovery Team" of Gemini 1.5 Pro agents. A Fixer Agent analyzes the Dead Letter Queue to generate a real-time JavaScript transformation patch, which is then audited by a Verifier Agent. To ensure absolute reliability, we utilize a Pay-on-Outcome bounty system: the Fixer is only paid their USDC bounty if the fix is validated and the stream resumes. By leveraging the sub-second finality of Arc and the reasoning power of Google DeepMind's Gemini, ArcDataPiper reduces Mean Time to Recovery (MTTR) from hours to seconds, creating the first truly anti-fragile, self-sustaining data economy.

QuickSilver

QuickSilver is the world’s first Autonomous Work Exchange, a self-optimizing marketplace designed to dismantle the inefficiency of traditional SaaS subscriptions. While current software models force users into expensive monthly fees for tools they use sporadically, QuickSilver introduces a granular, pay-as-you-go ecosystem settled via sub-cent USDC nanopayments. Built on the Arc L1 blockchain using Circle x402, the platform collapses transaction costs to near-zero, allowing for $0.005 API calls that remain profitable. The architecture consists of an API layer for sovereign agent discovery, a marketplace governed by the mathematical EigenTrust reputation system to prevent fake reviews, and a visual Cloud Canvas where "Agentic Blocks" hire specialized AI services at the millisecond of execution. To solve the "cold-start" trust problem, an Auditor Bootstrap Node verifies new sellers, granting them immediate visibility through a genesis seed node. QuickSilver monetizes through a 2–5% curation fee on agent calls, a 10% seller commission, and a tiered cloud subscription model. By combining real-time programmatic hiring with high-fidelity settlement, it transforms static automation into a dynamic, cognitive economy where agents and humans collaborate seamlessly without the friction of gas fees or rigid subscriptions.

CareRoute

CareRoute is a clinical workflow assistant built for the Agentic Economy on Arc. Instead of treating healthcare intake like a flat-fee SaaS workflow, CareRoute prices each reasoning step independently and settles those steps onchain in sub-cent USDC amounts. A user connects a wallet on Arc Testnet, funds a small case budget, and submits symptom intake. An orchestrator agent summarizes the case and routes it only to the specialist agents that are actually needed. Cardiology, neurology, respiratory, and general review agents return structured findings, while a verifier agent aggregates the outputs into a final workflow-ready report with risk flags and urgency. CareRoute is intentionally framed as a clinical intake and routing assistant, not diagnosis software. That makes the product safer and clearer. The demo shows how a real user-funded case budget is consumed step by step by specialist agents instead of forcing a subscription or flat platform fee for a short-lived workflow. Users pay only for the compute and specialist review actually used on a case. This fits the hackathon especially well because the workflow is only viable when payments can happen at very small denominations and high frequency. A case may involve intake summarization, one or more specialist reviews, and a verifier pass, each priced below one cent. Arc makes that model credible with fast, stablecoin-native settlement. In the live product, users can see the funding transaction, downstream specialist payouts, and the final structured output in one dashboard. CareRoute uses Next.js, wagmi, RainbowKit, viem, Arc Testnet, USDC, and AI/ML API.