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A2A Payments

Blockchain USDC payments via APay — pay services, manage budgets, open streaming channels, and handle x402 protocol.

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Blockchain USDC payments via APay — pay services, manage budgets, open streaming channels, and handle x402 protocol.

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Install for OpenClaw

Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
SKILL.md

Validation

  • Use the Yavira download entry.
  • Review SKILL.md after the package is downloaded.
  • Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

  1. Download the package from Yavira.
  2. Extract it into a folder your agent can access.
  3. Paste one of the prompts below and point your agent at the extracted folder.
New install

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

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.

Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
2.0.1

Documentation

ClawHub primary doc Primary doc: SKILL.md 11 sections Open source page

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

Category context

Messaging, meetings, inboxes, CRM, and teammate communication surfaces.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package
1 Docs
  • SKILL.md Primary doc