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circle-agent-stack-mcp MCP server · F · ToolBench

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circle-agent-stack-mcp

github.com/kinance/circle-agent-stack-mcp

MCP server for Circle Agent Stack — wallet management, USDC transfers, and x402 nanopayments via tool calls

2026-07-28+STDIO6 tools

11/100

Definition Quality0

Protocol Readiness0

Supportability38

Spec posture

Inferred effective spec 2026-07-28+·current baseline 2026-07-28

Static source inference · medium confidence

Current-spec patterns detected

Tools (6)

circle_balanceread onlyauthsource verified

Get USDC balance and the last 10 transactions for a specific wallet.

circle_policy_setwriteauthsource verified

Set spend controls on a Circle wallet: daily cap, per-x402-call cap, and address allow/block lists. Always set a daily_cap before enabling automated payments.

circle_transfer_usdcirreversibleauthsource verified

Send USDC from a Circle agent wallet to an on-chain address. Confirm wallet policy allows the recipient address and the amount is within daily cap before calling.

circle_wallet_createwriteauthsource verified

Create a new Circle agent wallet. Returns the wallet ID and on-chain address. Start with type='dev' for testnet exploration.

circle_wallet_listread onlyauthsource verified

List all Circle agent wallets and their USDC balances.

circle_x402_paywriteauthsource verified

Pay an x402-priced HTTP endpoint using USDC from a Circle wallet, then return the response body. The server negotiates price, pays atomically, and fetches the content in one step. Use max_price_usdc as a safety cap — the call fails if the endpoint quotes higher.

Score history

Overall score trend

First recorded score · v2 rubric

11/100

Scored	Grade	Overall	Spec posture	Rubric
2026-09-23	F	11	2026-07-28+	v2