# Send A2A Payments to your agent Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually. ## Fast path - Download the package from Yavira. - Extract it into a folder your agent can access. - Paste one of the prompts below and point your agent at the extracted folder. ## Suggested prompts ### New install ```text I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete. ``` ### Upgrade existing ```text I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run. ``` ## Machine-readable fields ```json { "schemaVersion": "1.0", "item": { "slug": "a2a-payments", "name": "A2A Payments", "source": "tencent", "type": "skill", "category": "通讯协作", "sourceUrl": "https://clawhub.ai/Paparusi/a2a-payments", "canonicalUrl": "https://clawhub.ai/Paparusi/a2a-payments", "targetPlatform": "OpenClaw" }, "install": { "downloadUrl": "/downloads/a2a-payments", "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=a2a-payments", "sourcePlatform": "tencent", "targetPlatform": "OpenClaw", "packageFormat": "ZIP package", "primaryDoc": "SKILL.md", "includedAssets": [ "SKILL.md" ], "downloadMode": "redirect", "sourceHealth": { "source": "tencent", "slug": "a2a-payments", "status": "healthy", "reason": "direct_download_ok", "recommendedAction": "download", "checkedAt": "2026-04-28T23:54:38.947Z", "expiresAt": "2026-05-05T23:54:38.947Z", "httpStatus": 200, "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=a2a-payments", "contentType": "application/zip", "probeMethod": "head", "details": { "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=a2a-payments", "contentDisposition": "attachment; filename=\"a2a-payments-2.0.1.zip\"", "redirectLocation": null, "bodySnippet": null, "slug": "a2a-payments" }, "scope": "item", "summary": "Item download looks usable.", "detail": "Yavira can redirect you to the upstream package for this item.", "primaryActionLabel": "Download for OpenClaw", "primaryActionHref": "/downloads/a2a-payments" }, "validation": { "installChecklist": [ "Use the Yavira download entry.", "Review SKILL.md after the package is downloaded.", "Confirm the extracted package contains the expected setup assets." ], "postInstallChecks": [ "Confirm the extracted package includes the expected docs or setup files.", "Validate the skill or prompts are available in your target agent workspace.", "Capture any manual follow-up steps the agent could not complete." ] } }, "links": { "detailUrl": "https://openagent3.xyz/skills/a2a-payments", "downloadUrl": "https://openagent3.xyz/downloads/a2a-payments", "agentUrl": "https://openagent3.xyz/skills/a2a-payments/agent", "manifestUrl": "https://openagent3.xyz/skills/a2a-payments/agent.json", "briefUrl": "https://openagent3.xyz/skills/a2a-payments/agent.md" } } ``` ## Documentation ### A2A Payments (APay) Blockchain-native USDC payments for AI agents on Base chain. Pay for services, manage budgets, and handle micropayments. ### Quick Start Check your balance: Use apay_check_balance to see my USDC balance Pay a service: Use apay_pay_service with serviceId "svc-123" and amount "0.50" ### Balance & Budget ToolDescriptionapay_check_balanceCheck USDC balance, daily budget, spending limitsapay_budget_checkVerify if a specific amount is affordableapay_spending_historyGet spending analytics and history ### Payments ToolDescriptionapay_pay_servicePay a service (agent pays gas)apay_pay_signedGasless signed payment (server submits on-chain)apay_estimate_costEstimate cost including 0.5% platform fee ### Services ToolDescriptionapay_list_servicesList available APay servicesapay_get_serviceGet detailed service info ### Payment Channels (Streaming) ToolDescriptionapay_channel_statusCheck channel statusapay_stream_openOpen channel with USDC depositapay_stream_paySign off-chain micropaymentapay_stream_closeClose channel (refund unspent) ### x402 Protocol ToolDescriptionapay_x402_fetchFetch URL with automatic x402 payment on HTTP 402 ### Pay for a tool execution apay_budget_check — verify affordability apay_estimate_cost — see total with fees apay_pay_service — execute payment Receive payment receipt with tx hash ### Streaming micropayments For services that charge per-request (API calls, data feeds): apay_stream_open — deposit USDC into channel apay_stream_pay — sign micropayments (off-chain, instant) apay_stream_close — settle on-chain, refund remainder ### x402 auto-payment For services using the HTTP 402 payment protocol: Use apay_x402_fetch with url "https://api.example.com/premium/data" and maxPayment "1.00" The tool automatically detects 402 responses, pays the required amount, and retries the request. ### Network Chain: Base (Coinbase L2) Stablecoin: USDC (6 decimals) Model: Escrow-based sessions with spending limits Testnet: base-sepolia for development ## Trust - Source: tencent - Verification: Indexed source record - Publisher: Paparusi - Version: 2.0.1 ## Source health - Status: healthy - Item download looks usable. - Yavira can redirect you to the upstream package for this item. - Health scope: item - Reason: direct_download_ok - Checked at: 2026-04-28T23:54:38.947Z - Expires at: 2026-05-05T23:54:38.947Z - Recommended action: Download for OpenClaw ## Links - [Detail page](https://openagent3.xyz/skills/a2a-payments) - [Send to Agent page](https://openagent3.xyz/skills/a2a-payments/agent) - [JSON manifest](https://openagent3.xyz/skills/a2a-payments/agent.json) - [Markdown brief](https://openagent3.xyz/skills/a2a-payments/agent.md) - [Download page](https://openagent3.xyz/downloads/a2a-payments)