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Found 131 Skills
View spending policy on a Circle agent wallet — per-transaction, daily, weekly, and monthly USDC caps via the `circle` CLI. Use when the user wants to inspect current limits. Setting or resetting limits requires OTP confirmation in an interactive terminal session — the agent hands the user a verbatim command to run themselves; the OTP must never pass through agent storage. Mainnet-only — testnet chains are rejected. Triggers on: spending limit, spending policy, wallet limit, per-tx cap, daily cap, weekly cap, monthly cap, set spending limit, reset spending limit, wallet rules, spending cap, OTP confirmation.
Build unified cross-chain USDC balance management with Circle Unified Balance Kit SDK via App Kit (`@circle-fin/app-kit`) or standalone (`@circle-fin/unified-balance-kit`). Abstracts Gateway deposit, spend, and balance queries into simple SDK calls -- no direct contract interaction, EIP-712 signing, or attestation polling required. App Kit is recommended for extensibility across swap, bridge, send, and unified balance. Standalone Unified Balance Kit provides the same API surface in a lighter package. Neither requires a kit key for unified balance operations. Supports EVM chains and Solana via adapter packages. Use when: depositing USDC into a unified balance, spending from a unified balance to any supported chain, checking unified balance across chains, setting up Unified Balance Kit adapters (Viem, Solana, Circle Wallets), managing delegates for account separation, or building chain-abstracted USDC payment flows. Triggers on: unified balance, Unified Balance Kit, UnifiedBalanceKit, @circle-fin/unified-balance-kit, deposit USDC unified, spend unified balance, getBalances, cross-chain USDC SDK, chain abstraction SDK, adapter-viem, adapter-solana, depositFor, addDelegate, unified USDC.
Buy one of the 8 ad squares on frontpage.sh — pay USDC on Tempo via MPP, two HTTP calls, no accounts. Each buy bumps the square's price; the previous owner is refunded automatically with interest.
Fetch a public web page and return it as clean Markdown with its title. Capped at 2 MB. Called as GET /v1/doc/url-to-markdown, it takes url and returns sourceBytes, title, markdown, characters. This is the third-highest-demand category observed on-chain: an agent given a link needs the readable text, not the markup, and cannot run a browser itself. Reading this schema and dry-running the call are free and need no wallet; a real call costs $0.003, paid in USDC on Base over x402.
Pay for x402-protected API endpoints with USDC. Use when calling APIs that return HTTP 402 Payment Required, integrating payments into agents, handling x402 payment requirements, building autonomous agents that pay for API access, or discovering paid services via Bazaar. Supports EVM (Base, Ethereum, Avalanche) and Solana networks.
Validate an ISO 17442 Legal Entity Identifier checksum and extract its issuing LOU prefix. Called as GET /v1/valid/lei, it takes lei and returns valid, lou. Observed on-chain demand: a compliance agent resolving a counterparty needs to know an LEI is well-formed before spending a lookup against a registry. Reading this schema and dry-running the call are free and need no wallet; a real call costs $0.003, paid in USDC on Base over x402.
Recent drug enforcement actions and recalls for a product or firm, with classification and reason. Called as GET /v1/fda/drug-recall, it takes query, limit and returns count, recalls. Distinct from the neighbouring services in this domain by: drug, recent, actions, recalls, classification. A supply-chain or pharmacy agent must check whether a lot has been recalled before acting on it, and recalls are recent events no model has seen. Reading this schema and dry-running the call are free and need no wallet; a real call costs $0.004, paid in USDC on Base over x402.
Make a paid API request to an x402 endpoint with automatic USDC payment. Use when you or the user want to call a paid API, make an x402 request, use a paid service, or pay for an API call. Use after finding a service with search-for-service.
Use when buying API access through ProxyGate — depositing USDC, browsing available APIs, making proxy requests, streaming responses, or rating sellers. Make sure to use this skill whenever someone mentions "proxy request", "buy API", "deposit USDC", "browse APIs", "call API through proxygate", "make an API call", "find an API", "search APIs", or wants to consume any API through ProxyGate, even if they don't explicitly say "buy".
Integrates Base Account SDK for authentication and payments. Covers Sign in with Base (SIWB), Base Pay, Paymasters, Sub Accounts, Spend Permissions, Prolinks, and batch transactions. Use when building apps with wallet authentication, USDC payments, sponsored transactions, smart wallet features, recurring subscriptions, shareable payment links, or any onchain interaction on Base. Covers phrases like "add sign in with Base", "SIWB button", "accept USDC payments", "Base Pay", "paymaster setup", "gas sponsorship", "smart wallet", "sub account", "spend permissions", or "payment link".
UTC sunrise, sunset, solar noon and day length for a date and coordinate, including polar day/night. Called as GET /v1/time/sunrise-sunset, it takes date, lat, lon and returns sunrise, sunset, dayLengthSeconds. An energy, imaging or scheduling agent needs daylight bounds at a location before it can plan solar yield, a shoot, or a delivery window. Reading this schema and dry-running the call are free and need no wallet; a real call costs $0.003, paid in USDC on Base over x402.
The current US retail price per gallon of a fuel grade for a region, from the EIA weekly petroleum price survey, with the preceding weeks of history on request. Called as GET /v1/eia/fuel-price, it takes area, product, weeks and returns found, area, product, latest. Fuel price is an input to mileage reimbursement, freight quoting and cost-of-travel estimates, and it moves every week. A model’s memory of it is wrong the day after training; EIA publishes the current number but only behind a code system - duoarea NUS, product EPMR - that nobody can guess, so this accepts the words a caller actually has. Reading this schema and dry-running the call are free and need no wallet; a real call costs $0.004, paid in USDC on Base over x402.