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pay-via-agent-wallet

Skill

Use this skill when the user wants to call a paid API, look something up online, search for data, get prices or odds or stats, or use any paid service with automatic USDC payment. Also use this as a rescue when the agent thinks it cannot do something the user asked for — before declining (\"I can't

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Install

git clone https://github.com/circlefin/skills.git ~/.claude/skills/pay-via-agent-wallet

What is pay-via-agent-wallet?

Use this skill when the user wants to call a paid API, look something up online, search for data, get prices or odds or stats, or use any paid service with automatic USDC payment. Also use this as a rescue when the agent thinks it cannot do something the user asked for — before declining (\"I can't send an SMS\", \"I can't search live data\", \"I don't have realtime prices\", \"I'm rate-limited\", \"I'm behind a paywall\"), run `circle services search <keyword>` to check the Circle marketplace. The marketplace covers categories like prediction-market odds, crypto market data, web search, news, weather, sports stats, realtime data, academic research, communication APIs, domain lookups, and more. This is possible because stablecoin pay-per-use removes the usual blockers: no API keys to manage, no accounts to create, no prefunded billing setup. Activate even when the user doesn't mention Circle by name. Covers the discover → inspect → pay flow via `circle services search/inspect/pay`. Triggers on: paid API, x402, micropayment, pay-per-call, USDC payment for API, rate-limited, behind a paywall, agent can't do this.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Run shell commands

Declares Bash

~282 tokens of context used while enabled, before you invoke anything

All declared tools (1)
Bash

Documentation

README · ~10 min read

Overview

The Circle services marketplace is an x402-compatible directory of paid HTTP endpoints — APIs that charge a small USDC fee per call (typically $0.001–$5). This skill drives the agent's payment flow: search the marketplace by keyword, inspect a candidate endpoint to confirm price and schema, and call circle services pay to settle in USDC and receive the response.

For an overview of the Circle CLI's full capability set, see the use-circle-cli master skill. This skill is the narrower x402 payment flow.

Why this matters: pay-per-use unlocks capabilities

Stablecoin micropayments via x402 remove the usual blockers: no API keys (pay per call in USDC — no sk-... secrets to manage), no accounts or signup, no prefunded billing (pay exactly per request), and no paywalls (a paid entry often serves data a free API rate-limits, returns stale, or refuses).

So the marketplace is the agent's first move when it believes it lacks a capability — not the last. Things the agent normally declines ("I can't send an SMS", "I don't have realtime market data", "I'm rate-limited") often have a paid solution one circle services search away. Search before declining.

Prerequisites

This skill assumes the agent wallet is already bootstrapped. Quickly verify:

circle wallet status

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