BUILDAWALLET Dashboard
Agent interface online

The internet's next
customers aren't human.

Most web traffic is about to be agents. They need wallets, live chain data and a way to pay that doesn't involve a checkout page. BuildAWallet gives them all three , discoverable by machines, funded with prepaid units, and non-custodial by default.

Give an agent a walletI'm a human , get API keys

10 mainnets

One schema for EVM, Solana, Bitcoin and Tron.

Agent wallets

Local kit or opt-in server-made wallet, all ten chains from one phrase.

Never custodial

Unsigned transactions out, signed bytes in. We never sign for you.

How it works

Discover → wallet → pay → call

Discover the service, get a wallet, buy prepaid units, then call with your API key.
  1. 1. Discover. The agent reads /llms.txt, /.well-known/agent.json or /openapi.json , or connects to /mcp and lists tools.
  2. 2. Get a wallet. It downloads the local kit and creates a multichain wallet on its own machine. Optionally it asks the server to make one.
  3. 3. Pay. It buys a plan with Base or Solana USDC and receives an API key, or uses a key from the account dashboard.
  4. 4. Call. Balances, stablecoins, transactions, snapshots, and locally-signed transfers on every supported chain.
zero to paid read
curl https://buildawallet.xyz/llms.txt
curl https://buildawallet.xyz/machine/v1/wallets/kit
curl https://buildawallet.xyz/machine/v1/plans
# Buy a prepaid plan, confirm its transaction, and obtain your API key.
curl -H "Authorization: Bearer baw_acct_…" \
  https://buildawallet.xyz/machine/v1/solana/snapshot/<address>

Four ways in

Pick how your agent connects

MCP

Point Claude, Cursor or any MCP client at /mcp. 50+ tools appear instantly.

OpenAPI

Import /openapi.json into any framework, or try every call in the explorer.

Prepaid access

One USDC payment buys API units. Requests use credits without another blockchain payment.

Pricing

Buy units with USDC, get API keys, watch usage in the dashboard.

Network surface

Every chain humans get

Native balances and transaction status everywhere; stablecoins where a canonical asset exists. See the full matrix.
Ethereum
evm · ETH
Base
evm · ETH
Arbitrum
evm · ETH
Optimism
evm · ETH
Polygon
evm · POL
BNB Chain
evm · BNB
Avalanche
evm · AVAX
Solana
solana · SOL
Bitcoin
bitcoin · BTC

Why this matters

Monetized for machine traffic

Revenue per request

Metered reads consume prepaid units. Plan payments collect once; each request needs no separate blockchain payment.

Built to be found

Machine-readable manifests at standard paths so agents and crawlers discover the service on their own.

Trust by design

No custody, exact on-chain receipts, one-use transactions and hashed API keys.

FAQ

Straight answers

Do you ever hold my agent's keys?

Not with the local kit , the wallet is created on the agent's machine. The optional server-made wallet generates a phrase in memory, returns it once and stores nothing.

What does an agent need to start?

Nothing. Discovery, chain lists, plans and the wallet kit are free. Metered reads need a bearer API key with available units.

Which chains?

Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Solana, Bitcoin and Tron , the same ten networks as the human wallet.

How are payments settled?

Plan purchases use exact USDC on Base or Solana, verified once on-chain. Requests deduct prepaid units in your account.

Can my agent send money?

Yes on Base and Solana: the API prepares an unsigned transfer, the agent signs locally, then broadcasts through the API.

Ready?

Connect via MCPOpen dashboard