Agentcash

merit-systems/agentcash-skills/plugin/skills/agentcash

by merit-systems522d5da81af6No license22 starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated 7 weeks ago

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

Instructions onlyAI & Agents

AI-generated overview

Calls pay-per-request x402/MPP APIs using a USDC wallet, with discovery, schema checks and automatic payment.

What it does: AgentCash lets an agent call x402- or MPP-protected APIs without API keys, paying per request in USDC from a wallet. It provides tools to check balance, list deposit addresses, redeem invite codes, search for APIs, discover endpoints and schemas, and make paid GET or POST requests. Payment is handled automatically through a 402 challenge and settles only on successful responses. It also lists a set of partner service origins covering enrichment, social data, media generation, hosting, email, phone, jobs, travel and browser automation.
When to use it: Use it when a task needs a paid third-party API that is protected by x402 or MPP and no API key is available. It fits research, enrichment, scraping, social media data, image or video generation, email, phone calls, travel and job lookups. It is also used to manage the wallet balance and deposits that fund those calls.
Requirements: Requires the AgentCash MCP tools to be installed and available to the agent, plus a funded USDC wallet on the Base or Solana network. Network access is needed for API discovery and paid requests. No scripts are shipped; the skill is instructions only.

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.get_balance() after to verify.

Deposit USDC

Call agentcash.list_accounts() to get per-network wallet addresses and deposit links
Send USDC on Base network (eip155:8453) or Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) to the matching address
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

mcp

agentcash.fetch(  url="https://stableenrich.dev/api/fullenrich/people-search",  method="POST",  body={    "current_company_domains": [{"value": "stripe.com"}],    "current_position_seniority_level": [{"value": "VP"}]  })

agentcash.fetch(  url="https://stableenrich.dev/api/fullenrich/people-search",  method="POST",  body={    "current_company_domains": [{"value": "stripe.com"}],    "current_position_seniority_level": [{"value": "VP"}]  })

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.

Available Services

Origin	Service	What it does
`https://stableenrich.dev`	StableEnrich	FullEnrich (people/company search), PDL & Minerva (person enrichment), CompanyEnrich (company profiles), Clado (contacts), Exa (web search), Firecrawl (scraping), Cloudflare (site crawling), Google Maps + Solar + Aerial View, Serper (news/shopping/images/lens), Whitepages, Reddit, Hunter (email verification)
`https://stableupload.dev`	StableUpload	File hosting ($0.005-$2.00 by size, tier-based retention) + static site hosting with custom domains
`https://stablestudio.dev`	StableStudio	AI image/video generation: GPT Image, Flux, Grok, Nano Banana, Sora, Veo, Seedance, Wan, image-to-SVG
`https://stablesocial.dev`	StableSocial	Social media data: TikTok, Instagram, YouTube, Facebook, LinkedIn, Reddit, Rumble, GitHub, ad libraries (Scrape Creators), plus Lightreel UGC research agent. $0.06/call, async jobs
`https://stableemail.dev`	StableEmail	Send emails ($0.02), forwarding inboxes ($1/mo), custom subdomains ($5)
`https://stablephone.dev`	StablePhone	AI phone calls ($0.54), phone numbers ($20), top-ups ($15)
`https://stablejobs.dev`	StableJobs	Job search via Coresignal (preview $0.10/page, collect $0.20/job)
`https://stabletravel.dev`	StableTravel	Flight prices and booking (Google Flights), award availability (Seats.aero), live flight tracking and airport data (FlightAware)
`https://stablebrowser.dev`	StableBrowser	Cloud browser automation: create a session ($0.10), then AI-powered navigate/act/extract/observe/screenshot (free SIWX)

Run agentcash.discover_api_endpoints(url="<origin>") on any origin to see its full endpoint catalog.

Quick Reference

Task	Tool
Check balance	`agentcash.get_balance`
Get deposit links and wallet addresses	`agentcash.list_accounts`
Redeem code	`agentcash.redeem_invite(code="...")`
Find APIs by natural language	`agentcash.search(query="...")`
Discover endpoints	`agentcash.discover_api_endpoints(url="...")`
Check pricing/schema	`agentcash.check_endpoint_schema(url="...")`
Paid POST request	`agentcash.fetch(url="...", method="POST", body={...})`
Paid GET request	`agentcash.fetch(url="...")`
Authenticated GET (no payment)	`agentcash.fetch(url="...")`

Tips

Skip search when a listed origin fits the task. Go straight to discover_api_endpoints. Only use search when no origin in the Available Services table matches.
Always discover before calling arbitrary paths — the instructions field has critical endpoint-specific patterns and required parameters.
Payments settle only on success (2xx) — failed requests cost nothing.
Use check_endpoint_schema when unsure about request/response format.
Independent agentcash.fetch calls can run in parallel for better throughput.
Network: Base (eip155:8453) or Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp), Currency: USDC.

Troubleshooting

Issue	Solution
"MCP tool not found"	Reinstall MCP, restart IDE
"Insufficient balance"	Run `agentcash.get_balance()`, then `agentcash.list_accounts()` or redeem an invite code
"Payment failed"	Transient error — retry the request
"Invalid invite code"	Code already used or doesn't exist
Balance not updating	Wait for Base or Solana network confirmation (~2 sec)

Source and attribution

Source:merit-systems/agentcash-skillsinplugin/skills/agentcashat commit522d5da

License: No license

Content belongs to its original authors. SourceWeft indexes it from a public repository.

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Agentcash

AgentCash — Paid API Access

Check Balance

Redeem Invite Code

Deposit USDC

Calling Paid APIs

1. Pick an origin — or search

2. Discover endpoints

3. Check schema (optional)

4. Make a paid request

Available Services

Quick Reference

Tips

Troubleshooting

Source and attribution

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