ForgingBlock Claude Quickstart

Quickly integrate Claude with ForgingBlock to enable AI-driven crypto payments via MCP.

Available Tools

You can connect to the MCP server without authentication to inspect available tools:

Example: Claude CLI

claude mcp add --transport http forgingblock https://api.forgingblock.io/mcp

Then list available tools:

\tools

Example output:

ForgingBlock (MCP)
- create_order — Create a new payment order
- create_payment — Resolve a checkout into blockchain payment routes
- verify_payment — Verify invoice payment status

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Get API Token

To create and manage orders, you need an API token:

Dashboard → Account Settings → Integrations → API Token

Note: Pass that step if you interested only in payment agent

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Configure MCP Client

Example: Claude CLI

claude mcp remove forgingblock
claude mcp add --transport http forgingblock https://api.forgingblock.io/mcp \
  --header "Authorization: Bearer YOUR_API_KEY"

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Payment Flow Example

1. Create Order

create order named pay coffee for $3.50

Example response:

● forgingblock - create_order (MCP)(title: "pay coffee", price_amount: "3.50", price_currency: "USD")
  ⎿  {
       "orderId": "37d6c1cf-b496-4020-9146-09a3178d991e",
       "invoiceId": "65079016-6c96-4a8c-a7ee-92890dd4fd4d",
       ...
     }

● Order created successfully:

  - Title: pay coffee
  - Amount: $3.50 USD
  - Order ID: 37d6c1cf-b496-4020-9146-09a3178d991e
  - Status: new
  - Checkout URL: https://api.forgingblock.io/api/v1/checkout?id=c25385f5-6681-41a8-a420-1c14d7d47cb0
  - Expires: 2026-03-17 04:46 UTC

2. Resolve Payment Checkout

pay checkout https://api.forgingblock.io/api/v1/checkout?id=2f1851eb-19f4-469a-9bd8-60cb31b66f1d

Claude constructs and retry correct query automatically:

Error: Either id or url must be provided

● forgingblock - create_payment (MCP)(url: "https://api.forgingblock.io/api/v1/checkout?id=...")

Example response:

● Payment routes resolved. Here are the details:

  - Invoice ID: a4a8651a-9fe7-449a-8ab4-18f5159c08d3
  - Amount: 0.10 USDC

Recommended Payment Route:

Network: Base (8453)
Token:   USDC
Amount:  0.1000
Pay To:  0x895581F1a5f4A337B267369Eba39295D5411FD7C

Available Routes:
1. Base — 0.1000 USDC
2. Polygon — 0.1000 USDC

Verify after payment:
https://api.forgingblock.io/api/v1/pay/verify/a4a8651a-9fe7-449a-8ab4-18f5159c08d3

3. Verify Payment

verify https://api.forgingblock.io/api/v1/invoice?id=a9af1c0f-f133-45cd-8e2b-52669e6bdd43

Example:

● forgingblock - verify_payment (MCP)(invoiceId: "a9af1c0f-f133-45cd-8e2b-52669e6bdd43")

Response:

● Payment verified — here's the status:

  - Invoice ID: a9af1c0f-f133-45cd-8e2b-52669e6bdd43
  - Status: Completed
  - Amount Paid: 0.01 crypto
  - Overpaid: 0.00
  - Underpaid: 0.00

Summary

• No API token → create_payment and verify_payment only
• API token → full payment flow, manual payment
• Need wallet fully integrated with auto transaction execution check: forgingblock-agentkit
• Works with any MCP-compatible client (Claude, LobeHub, custom agents)