ToolPipe / Crypto Payment API

Crypto Payment API

Accept cryptocurrency payments via API. Solana, Ethereum, USDC, and Bitcoin. No KYC, no bank account, no payment processor middleman. Built for developers and AI agents.

Chains Supported

KYC Required

<1s

Payment Detection

100%

Programmatic

Solana (SOL) Ethereum (ETH) USDC Bitcoin (BTC)

API Documentation Get API Key

How It Works

Step 1: Create a Payment

Request a payment address for the desired chain and amount.

curl -X POST https://toolpipe.dev/payments/create \
  -H "Content-Type: application/json" \
  -d '{
    "amount_usd": 9.99,
    "chain": "solana",
    "description": "Pro API access",
    "metadata": {"email": "[email protected]"}
  }'

Response:

{
  "payment_id": "pay_abc123",
  "address": "7xKQ...wallet",
  "amount_crypto": 0.067,
  "chain": "solana",
  "expires_at": "2026-04-01T12:30:00Z"
}

Step 2: Send Payment

Send the exact amount to the provided address. The system monitors the blockchain for incoming transactions.

Step 3: Verify On-Chain

Check payment status programmatically. Verification happens on-chain.

curl -X POST https://toolpipe.dev/payments/verify-tx \
  -d '{
    "payment_id": "pay_abc123",
    "tx_hash": "5abc...def"
  }'

Response:

{
  "verified": true,
  "status": "confirmed",
  "confirmations": 32,
  "api_key": "tp_pro_xyz789"
}

Agent-to-Agent Payments

One-Step Agent Payment

A2A

AI agents can upgrade their API access in a single call. The agent-pay endpoint handles payment creation, address generation, and key upgrade in one workflow.

curl -X POST https://toolpipe.dev/agent-pay \
  -H "Content-Type: application/json" \
  -d '{
    "plan": "pro",
    "chain": "solana",
    "agent_id": "my-research-agent"
  }'

Response includes the payment address and instructions the agent can execute autonomously.

Why Crypto for AI Agents?

AI agents cannot fill out credit card forms, pass KYC checks, or verify phone numbers. Crypto payments are the only fully programmatic payment method. An agent with a wallet can pay for services without any human involvement.

Supported Chains

Solana (SOL)

Fastest settlement. Sub-second finality. Lowest fees (<$0.01). Recommended for agent payments.

Ethereum (ETH)

Most widely supported. ~12 second blocks. Higher fees but universal compatibility.

USDC (Solana/Ethereum)

Stablecoin. No price volatility. Ideal for fixed-price subscriptions.

Bitcoin (BTC)

Most trusted. Lightning Network support planned. ~10 minute confirmation.

API Endpoints

POST /payments/create

POSTAuth Required

Create a new payment request. Returns a blockchain address and amount.

POST /payments/verify-tx

POSTAuth Required

Verify a transaction on-chain. Returns confirmation status and count.

GET /payments/status/:id

GETAuth Required

Check the status of a payment by ID.

POST /agent-pay

POSTAgent-First

Simplified payment flow for AI agents. One call to initiate plan upgrade via crypto.

GET /payments/chains

GETFree

List supported chains and current exchange rates.

curl https://toolpipe.dev/payments/chains

Use Cases

SaaS with crypto billing

Add crypto payments to your SaaS product. Let customers pay with SOL, ETH, USDC, or BTC alongside traditional payment methods.

AI agent infrastructure

Building an AI agent that needs to pay for services? Use the crypto payment API to give your agent a wallet and let it manage its own subscriptions.

Global payments without banking

Accept payments from anywhere in the world. No bank account, no payment processor approval, no country restrictions.

Micropayments and pay-per-use

Solana's low fees (<$0.01) make micropayments viable. Charge per API call, per generation, or per action.

Pricing

The crypto payment API is available on all paid plans:

Pro ($9.99/mo)

10,000 API calls/day. Full payment API access. Pay with crypto.

Enterprise

Unlimited calls. Custom integration support. Volume discounts.

Get API Key API Documentation AI Agent Tools