Agent skill · marketing growth · merit-systems
agentcash
Pay-per-call x402/MPP APIs (USDC on Base, Solana, Tempo). No API keys—wallet pays per request. If the task matches a SERVICES origin below, SKIP search and go straight to discover → fetch. Only search when NO listed origin fits. SERVICES: stableenrich (people/company, web search, scraping, Maps, LinkedIn, email verify, news), stablesocial (TikTok, Instagram, YouTube, Facebook, Reddit, LinkedIn, GitHub), stablestudio (AI image/video), stableupload (file/site hosting), stableemail (email, inboxes, subdomains), stablephone (AI calls, phone numbers), stablejobs (jobs), stabletravel (travel), stablebrowser (browser automation). TRIGGERS: research, enrich, scrape, search the web, generate image, video, social media, send email, phone call, travel, jobs, find contact, find API, x402, mpp, agentcash
Why this skill is useful
Provides specific commands and workflows for interacting with pay-per-call APIs that the AI wouldn't reliably generate on its own.
What it needs
About 4k tokens when loaded. Last updated 2026-07-14. 16 stars on the source repository.
What this skill does
AgentCash — Paid API Access Call any x402 or MPP-protected API with automatic wallet authentication and payment. No API keys or subscriptions required. Check Balance Returns total USDC balance across supported networks. Use this before paid calls to confirm funds are available. Redeem Invite Code One-time use per code. Credits added instantly. Run agentcash.getbalance() after to verify. Deposit USDC 1. Call agentcash.listaccounts() to get per-network wallet addresses and deposit links 2. Send USDC on Base network (eip155:8453) or Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) to the matching address 3. Or open the returned deposit link for the selected network Important: Only Base or Solana network USDC. Other networks or tokens will be lost. Calling Paid APIs 1. Pick an origin — or search Check the Available Services table below first. If any origin clearly covers the task, skip search entirely and jump to step 2 (discover). Examples: Task Origin (skip search) ------ --------------------- Look up a person or company stableenrich.dev Generate an image or video stablestudio.dev Get Instagram/TikTok data stablesocial.dev Send an email stableemail.dev Upload a file stableupload.dev Only use search when none of the listed origins fit: Returns matching origins with endpoints and pricing (the top match often includes schema so you can call fetch immediately). 2. Discover endpoints Returns all endpoints, pricing, and usage instructions. Read the instructions field — it has critical endpoint-specific guidance. 3. Check schema (optional) Returns full request/response JSON schemas and pricing for a specific endpoint. 4. Make a paid request Payment is automatic: sends request, gets 402 challenge, signs USDC payment, retries with credential, returns result. Payments settle only on success (2xx) — failed requests cost nothing. agentcash.fetch also handles SIWX-authenticated endpoints automatically when the route supports that flow. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills merit-systems/agentcash