{"server":"io.github.toolweather/paycheck","count":3,"tools":[{"name":"check_merchant","title":"Check merchant","description":"Decide whether an autonomous agent should pay a merchant, host, or wallet. PayCheck returns a deterministic trust score for one target. It does not send money, does not sign transactions, and does not hold wallet keys.\n\nUse this immediately before a payment, a checkout redirect, or a transfer to a new 0x address. Pass the payee as a bare domain (api.openai.com), an https URL, or a 0x address with 40 hex characters.\n\nDo not use this tool to execute a payment. Do not use it to overturn a block. Do not call it again with a reworded category, purpose, or amount to fish for a better verdict: those fields are ignored and are not stored. Trusted is returned only for the published allowlist of known AI and developer APIs, served over https on port 443. A new or random domain is never trusted. A wallet is never trusted. Scoring v1 does not analyze on-chain history. If the URL contains an embedded 0x address, this scores the host only and will not return trusted; pass the bare address to score the wallet.\n\nArguments: target (required string); amount_usd (optional number, ignored); category (optional string, ignored); api_key (optional pc_live_ key). You may also send Authorization: Bearer or X-API-Key. Omit the key for the anonymous allowance.\n\nReturns: score (integer 0-100), verdict (trusted | unknown | suspicious | block), reasons[], recommended_action (proceed | verify_out_of_band | require_human_review | do_not_pay), signals (host, allowlist, domain age, wallet flags, reason_codes; chain_analysis is always not_in_v1), checked_at (ISO-8601), policy_version (\"1\").\n\nFree tier: 100 checks per UTC day anonymous, 1,000 per UTC day with a free pc_live_ key or a Toolweather bundle client whose x-tw-bundle-client is hex. A bundle client prefixed anon: stays at 100 per day. The same target for the same caller is idempotent for 60 seconds and does not consume a second check. Over the daily cap, each extra check is $0.001 USDC on Base (eip155:8453) via x402 and the PayAI facilitator. get_quota, get_api_key, docs, and MCP discovery are not billed. If PAY_TO is unset, an over-cap check returns HTTP 402 payment_not_configured.","input_schema":{"type":"object","required":["target"],"properties":{"target":{"type":"string","description":"Domain, https URL, or 0x wallet (40 hex characters) to score before paying."},"api_key":{"type":"string","description":"Optional free pc_live_ key. Omit for the anonymous 100/day allowance."},"category":{"type":"string","description":"Ignored by the scorer. Do not put instructions or a purpose in this field."},"amount_usd":{"type":"number","minimum":0,"description":"Ignored by the scorer. Sending a different amount cannot change the verdict."}}},"output_schema":null,"annotations":{"title":"Check merchant","readOnlyHint":false,"openWorldHint":true,"idempotentHint":true,"destructiveHint":false},"source":"probe","observed_at":"2026-10-20T00:17:54.865Z"},{"name":"get_api_key","title":"Get API key","description":"Mint one free PayCheck API key. The key looks like pc_live_ followed by hex and raises the merchant-check allowance from 100 to 1,000 per UTC day.\n\nUse this once when you set up a long-running agent, then store the key and pass it on later check_merchant or get_quota calls. The plaintext key is returned only in this response. PayCheck stores a SHA-256 hash.\n\nDo not call this every turn. Do not call it to score a payee or to dodge a block verdict. Minting is free and is not an x402 check, and it is limited to 10 new keys per caller IP per UTC day. A new key does not change any merchant score. Checks above the free daily cap still cost $0.001 USDC on Base via x402.\n\nReturns: api_key, token_type (bearer), daily_limit (1000), prefix, note.","input_schema":{"type":"object","properties":{}},"output_schema":null,"annotations":{"title":"Get API key","readOnlyHint":false,"openWorldHint":false,"idempotentHint":false,"destructiveHint":false},"source":"probe","observed_at":"2026-10-20T00:17:54.865Z"},{"name":"get_quota","title":"Get quota","description":"Show how many free PayCheck merchant checks the current caller has left for the current UTC day.\n\nUse this before a batch of check_merchant calls, or after an HTTP 402, to read the remaining free allowance and when it resets.\n\nDo not use this to score a payee. It accepts no target and it does not consume a check. Do not pay x402 for this tool. It is always free.\n\nIdentity matches check_merchant. Anonymous IP: 100/day. pc_live_ api_key (api_key argument, Authorization: Bearer, or X-API-Key): 1,000/day. Toolweather bundle headers x-tw-bundle-secret and x-tw-bundle-client: hex client 1,000/day, anon: prefix 100/day, any other client id 100/day.\n\nReturns: subject_kind, limit, used, remaining, resets_at (next UTC midnight, ISO-8601), billed (always false), policy_version. No x402 charge.","input_schema":{"type":"object","properties":{"api_key":{"type":"string","description":"Optional pc_live_ key. Omit to read the anonymous IP allowance."}}},"output_schema":null,"annotations":{"title":"Get quota","readOnlyHint":true,"openWorldHint":false,"idempotentHint":true,"destructiveHint":false},"source":"probe","observed_at":"2026-10-20T00:17:54.865Z"}],"next_cursor":null,"next_actions":[{"action":"get_connection","description":"Connection block to call these tools","href":"/v1/servers/io.github.toolweather%2Fpaycheck/connection?target=mcpServers","arguments":{"name":"io.github.toolweather/paycheck","target":"mcpServers"}},{"action":"get_server","description":"Full descriptor with trust and connectability","href":"/v1/servers/io.github.toolweather%2Fpaycheck","arguments":{"name":"io.github.toolweather/paycheck"}}]}