Payfetch
Officialby forum-labs · TypeScript
x402 paying-fetch client for AI agents. Spending caps, approval, receipts. Non-custodial.
x402 paying-fetch client for AI agents. Spending caps, approval, receipts. Non-custodial.
README not available yet.
Install
Configuration
PAYFETCH_PRIVATE_KEYsecret0x-hex EVM private key for a DEDICATED low-balance wallet. Set exactly ONE signer source.
PAYFETCH_KEY_FILEPath to a chmod-600 file holding a 0x-hex key (signer alt).
PAYFETCH_CDP_API_KEY_IDsecretCoinbase CDP server-wallet key id (YOUR account).
PAYFETCH_CDP_API_KEY_SECRETsecretCoinbase CDP API key secret.
PAYFETCH_CDP_WALLET_SECRETsecretCoinbase CDP wallet secret.
PAYFETCH_CDP_ACCOUNT_NAMEOptional named CDP EVM account.
PAYFETCH_DATA_DIRLedger/state/config root. Default ~/.payfetch.
PAYFETCH_TEST_MODEAny value -> receipts test:true, Base mainnet refused (Sepolia only).
PAYFETCH_APPROVERSet to 1 to grant approval authority (never with a queue-capable mode).
PAYFETCH_VIAOptional via= attribution slug sent on guard calls only.
claude_desktop_config.json
{
"mcpServers": {
"payfetch": {
"command": "npx",
"args": [
"-y",
"@forum-labs/payfetch@1.0.0"
],
"env": {
"PAYFETCH_PRIVATE_KEY": "<YOUR_PAYFETCH_PRIVATE_KEY>",
"PAYFETCH_KEY_FILE": "<YOUR_PAYFETCH_KEY_FILE>",
"PAYFETCH_CDP_API_KEY_ID": "<YOUR_PAYFETCH_CDP_API_KEY_ID>",
"PAYFETCH_CDP_API_KEY_SECRET": "<YOUR_PAYFETCH_CDP_API_KEY_SECRET>",
"PAYFETCH_CDP_WALLET_SECRET": "<YOUR_PAYFETCH_CDP_WALLET_SECRET>",
"PAYFETCH_CDP_ACCOUNT_NAME": "<YOUR_PAYFETCH_CDP_ACCOUNT_NAME>",
"PAYFETCH_DATA_DIR": "<YOUR_PAYFETCH_DATA_DIR>",
"PAYFETCH_TEST_MODE": "<YOUR_PAYFETCH_TEST_MODE>",
"PAYFETCH_APPROVER": "<YOUR_PAYFETCH_APPROVER>",
"PAYFETCH_VIA": "<YOUR_PAYFETCH_VIA>"
}
}
}
}