SignCheck MCP server
online · 100% uptimePre-sign safety check for agent wallets: tx, EIP-712, EIP-7702, x402. By Crypto Money Maker
359 downloads/wk
Reviews
Write oneNobody has reviewed SignCheck yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
SignCheck tools (1)
write = sends, deletes, buys or postscheck_signatureFreeCall BEFORE your agent signs or sends anything from a wallet. Decodes a transaction, an EIP-712 typed-data request (Permit, Permit2, EIP-3009 USDC authorizations, Seaport orders), an EIP-7702 delegation or an x402 payment (402 terms + payload) into plain English and returns SAFE / CAUTION / DANGER with risk flags (unlimited approvals, setApprovalForAll, fake USDC domains, x402 overpay or wrong payTo, OFAC SDN counterparties). Free preview tier (offline). The paid x402 endpoint /v1/check adds reasons, on-chain facts (spender is a wallet or contract, token metadata) and an eth_call simulation.
Public scan report
scanner v0.1.10 · 2026-10-25 · same rubric, same numbers if you re-run it
- Code scan6 source files scanned25/25
- Live reliabilityremote reachable in 564ms20/20
- Tool poisoning1 tool descriptions checked15/15
- Auth qualityopen endpoint, read-only tools10/15
- Maintenancerepository not readable: unknown3/15
- Maintainer identityendpoint served from the registry-verified namespace domain8/10
How SignCheck compares
Against every graded Finance MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 81/100
- higher than 70% of 1,761 Finance servers
- Tools
- 1
- the typical Finance server has 8
- Tools that change things
- 0%
- typical: 0%. Fewer write tools means less an agent can break
- Uptime
- 100%
- of our recent checks; the typical remote Finance server answers 100%
- Response time
- 273 ms
- faster than 53% of 1,133 Finance servers
- Downloads a week
- 359
- more than 87% of 421 Finance servers with a package
What its tools let an agent do: 1 read
Install SignCheck in Claude Code, Cursor or VS Code
claude mcp add --transport http signcheck https://api.youraitools.co/signcheck/mcp
SignCheck: common questions
- Is SignCheck MCP server safe?
- Mostly: it is graded B (81/100). Read the SignCheck safety report
- How do I install SignCheck?
- It runs remotely at api.youraitools.co. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does SignCheck need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is SignCheck maintained?
- The latest release is v0.2.0.
- Is SignCheck up?
- 100% of our last 28 checks got an answer. We check remote servers about four times a day.
- What can I use instead of SignCheck?
- Servers from other publishers that do the same job: Sato Hub: Build Onchain & Crypto Agents MCP server, Blockrun MCP server and Yolfi Payments MCP server.
- How does SignCheck compare with other Finance MCP servers?
- safety score 81/100 (higher than 70% of 1,761 Finance servers); tools 1 (the typical Finance server has 8); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.
Alternatives to SignCheck
Same job from other publishers: the closest match first, then the best rated.
Sato Hub: Build Onchain & Crypto AgentsBuild any crypto agent: x402, ERC-8004, wallets. Does a server take your key? Hosted? Maintained?not reviewedEstablishedB- BlockrunWeb search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.not reviewedEstablishedB
- Yolfi Payments MCPLet AI agents add Yolfi crypto checkout, paylinks, webhooks, and status checks.not reviewedEstablishedA
Trading SignalsLive AI crypto trading signals for agents. Try 3 signals without a key; sign in from your agent.not reviewedGrowingA- Pulsefeed X402Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.not reviewedGrowingA
