Poof for AI agents

Poof lets digital businesses and creators accept payments and move funds between crypto and fiat. Creators use it to get paid in the currency their customers prefer. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect Poof See the 11 actions ↓

Finance and accountingAPI keyMCP + RESTpoof.io

AUDIT LOG · POOFPOLICY: acme-support

09:41:07 · claude · u_8f2read

poof.fetch_price

Fetch Cryptocurrency Price✓ allowed · 212ms

09:41:08 · claude · u_8f2read

poof.check_balance

Check Balance✓ allowed · 164ms

09:41:09 · claude · u_8f2write

poof.create_webhook

Create Poof Webhook✓ approved · approved by user

EVERY POOF CALL, ON THE RECORD

01 · USE CASES

What agents do in Poof.

Create a payment link

Generate a payment link for a product or service that accepts crypto or fiat.

Check account balance read-only

Look up the current balance before deciding whether to send a payout.

Send a payout with approval

Send a cryptocurrency payout to a recipient only after the request is explicitly confirmed.

02 · ACTIONS

11 Poof actions, graded by risk.

Every Poof action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

Look things up. Allowed by default.

poof.fetch_price
Fetch Cryptocurrency Price
poof.check_balance
Check Balance
poof.fetch_gas_price
Fetch Gas Price
poof.fetch_smart_contracts
Fetch Smart Contracts

write

Create and change things. Allow, or ask the user first.

poof.send_payout
Send Cryptocurrency Payout
poof.create_webhook
Create Poof Webhook
poof.create_checkout
Create Checkout Session
poof.create_fiat_charge
Create Fiat Charge
poof.create_fiat_invoice
Create Fiat Invoice
poof.create_payment_link
Create Payment Link
poof.create_deposit_address
Create Deposit Address

destructive

Delete, cancel or archive. Ask first, or deny outright.

No destructive actions.

03 · HOW IT WORKS

Poof in three steps.

01Your users connect PoofThey add their Poof api key on Arc0 Connect, under your brand. It goes straight into the vault.
02You set the rulesReads run, and writes like “create Poof Webhook” can wait for the user to approve.
03Any agent can actYour agent calls Poof through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.

POLICY.TS

await arc0.policies.set('poof', {
  read: 'allow',
  write: 'ask',        // create_webhook
  destructive: 'deny',  
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2

04 · AUTH AND DATA

How Poof connects.

Users add their Poof api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Poof connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH: API key
CREDENTIALS: Per-tenant encrypted vault
MODEL SEES: Results only, never credentials
AUDIT LOG: Every call, on every plan

05 · WORKS WITH

Use Poof from any agent.

Claude

ChatGPT

Cursor

Codex

VS Code

OpenAI Agents SDK

Claude Agent SDK

Vercel AI SDK

Mastra

LangGraph

06 · RELATED

More finance and accounting apps.

Stripe433 actions 44API4 actions

Zoho Books265 actions

Maxio177 actions

ALL FINANCE AND ACCOUNTING APPS →

07 · FAQ

Poof and Arc0, answered.

Q01

Can I use Poof with Claude, ChatGPT or Cursor?

Yes. Connect Poof to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Poof actions you allow.

Q02

How do users connect Poof?

Users add their Poof api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Poof actions can my agent take?

11 in total: 4 read, 7 write and 0 destructive, such as “create Poof Webhook”. Your policies decide which of them each agent may call.

Q04

Can I make my agent read-only in Poof?

Yes. Allow read actions and deny writes in the Poof policy. Your agent can still look things up, and any write it attempts is blocked and logged.

Q05

Can my own backend call Poof too?

Yes. The same Poof connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Poof into your agent.

Your users connect Poof once, under your brand. Your agent gets 11 actions behind your policies, with every call on the record.

Connect Poof Browse all apps →

Free to build · MCP + REST · Audit log on every plan