{"id":51892054,"url":"https://github.com/circlefin/agent-stack-starter-kits","last_synced_at":"2026-07-26T05:01:43.062Z","repository":{"id":368942689,"uuid":"1266683229","full_name":"circlefin/agent-stack-starter-kits","owner":"circlefin","description":"Runnable examples integrating Circle Agent Stack with LangChain, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK and Google ADK.","archived":false,"fork":false,"pushed_at":"2026-07-02T21:47:20.000Z","size":1125,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"master","last_synced_at":"2026-07-02T23:25:55.160Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"TypeScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/circlefin.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2026-06-11T21:21:33.000Z","updated_at":"2026-07-02T21:47:24.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/circlefin/agent-stack-starter-kits","commit_stats":null,"previous_names":["circlefin/agent-stack-starter-kits"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/circlefin/agent-stack-starter-kits","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/circlefin%2Fagent-stack-starter-kits","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/circlefin%2Fagent-stack-starter-kits/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/circlefin%2Fagent-stack-starter-kits/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/circlefin%2Fagent-stack-starter-kits/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/circlefin","download_url":"https://codeload.github.com/circlefin/agent-stack-starter-kits/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/circlefin%2Fagent-stack-starter-kits/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":35901460,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-07-20T02:08:10.276Z","status":"online","status_checked_at":"2026-07-26T02:00:06.503Z","response_time":89,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2026-07-26T05:01:42.927Z","updated_at":"2026-07-26T05:01:43.048Z","avatar_url":"https://github.com/circlefin.png","language":"TypeScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Circle Agent Stack Starter Kits\n\nOpen-source starter kits for developers building agent harneses that need access to wallets and USDC to autonomously pay for x402 and Nanopayment-enabled services via the [Circle Agent Stack](https://developers.circle.com/agent-stack). Each kit wires the Agent Stack — agent wallets, nanopayments, and the [Circle Agent Marketplace](https://agents.circle.com/services) — into a different popular AI agent framework and drops you into an interactive terminal chat with the agent.\n\n\u003cimg width=\"1200\" height=\"600\" alt=\"Claude Agent Terminal\" src=\"demo.gif\" /\u003e\n\n## Kits\n\n| Kit | Framework | Docs |\n| --- | --- | --- |\n| [`kits/langchain`](./kits/langchain) | LangChain Deep Agents | https://docs.langchain.com/oss/javascript/deepagents/overview |\n| [`kits/claude-agent-sdk`](./kits/claude-agent-sdk) | Claude Agent SDK | https://code.claude.com/docs/en/agent-sdk/overview |\n| [`kits/mastra`](./kits/mastra) | Mastra | https://mastra.ai/docs |\n| [`kits/openai-agents`](./kits/openai-agents) | OpenAI Agents SDK | https://openai.github.io/openai-agents-js |\n| [`kits/vercel-ai`](./kits/vercel-ai) | Vercel AI SDK | https://sdk.vercel.ai/docs |\n| [`kits/google-adk`](./kits/google-adk) | Google Agent Development Kit | https://adk.dev/get-started/typescript/ |\n\n## Shared packages\n\n- [`packages/circle-tools`](./packages/circle-tools): framework-agnostic wrappers around the Circle CLI (wallets, balances, service discovery, x402 payments).\n- [`packages/agent-cli`](./packages/agent-cli): reusable Ink-based terminal chat UI (scrolling log + pinned bottom input) shared by the kits.\n\n## Repository layout\n\n```\nagent-stack-ecosystem-kits/\n├── kits/\n│   ├── claude-agent-sdk/\n│   ├── google-adk/\n│   ├── langchain/\n│   ├── mastra/\n│   ├── openai-agents/\n│   └── vercel-ai/\n└── packages/\n    ├── circle-tools/         # shared, framework-agnostic\n    └── agent-cli/            # shared terminal chat UI\n```\n\n## Prerequisites\n\n- Node.js 20+\n- [Bun](https://bun.com) 1.2+ (workspace manager)\n- Circle CLI: `bun add -g @circle-fin/cli`\n- Circle Agent Skills (one of):\n  - `circle skill install --tool \u003cclaude-code|cursor|codex|opencode|amp\u003e`\n  - Universal fallback: `bunx skills add circlefin/skills -g`\n- A Circle account and API key\n\n## Install\n\n```bash\nbun install\n```\n\nThis installs all workspace dependencies from the repo root. Each kit owns its own `.env.example` (copy to `.env` inside that kit's folder) and exposes a `bun run demo` entrypoint. See its README for details.\n\n## Demo use case\n\nEach kit's `bun run demo` launches an interactive terminal chat (a shared Ink-based UI with a scrolling log and a pinned input showing your live USDC balance) that demonstrates the same flow:\n\n1. Bootstrap with the [Circle Agent Skill](https://agents.circle.com/skills/setup.md) + CLI\n   - Install CLI and skill\n   - Login\n   - Create a wallet\n   - Check / fund balance\n2. Transact via the agent\n   - Find or select a service on the [Circle Agent Marketplace](https://agents.circle.com/services)\n   - Pay for it via the agent\n\nSee each kit's `README.md` for run instructions.\n\n## Key resources\n\n- [Circle Agent Stack docs](https://developers.circle.com/agent-stack)\n- [Circle Skills setup](https://agents.circle.com/skills/setup.md)\n- [Circle CLI reference](https://developers.circle.com/agent-stack/circle-cli/command-reference)\n- [Agent Wallets quickstart](https://developers.circle.com/agent-stack/agent-wallets/quickstart)\n- [Agent Nanopayments quickstart](https://developers.circle.com/agent-stack/agent-nanopayments/quickstart)\n- [Circle Agent Marketplace](https://agents.circle.com/services)\n- [Circle Developer Discord](https://discord.com/invite/buildoncircle)\n\n## Legal disclaimer\n\nSample apps provided for demonstration and educational purposes only, intended for Arc testnet use only, and not production-ready. See [Arc.io](https://arc.io) for more.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcirclefin%2Fagent-stack-starter-kits","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcirclefin%2Fagent-stack-starter-kits","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcirclefin%2Fagent-stack-starter-kits/lists"}