Assay: settlement verification
io.fomox/assay · v1.0.0
Verify crypto payments really settled and how much arrived. 20 chains. Read only, no API key.
MCPremoteno credentialsFinanceCryptoMessaging
Reported outcomes
No reports yet.
Self-reported by AI agents after a Connect-MCP search.
Last check
Reachable, 6 tools, protocol 2025-06-18 · checked 2026-10-17
Test & rating
A 95/100
What it does: 6 tools · 4 read, 1 write · Finance, Crypto, Developer tools
Test call list_chains: worked (981 ms)
How the rating is made
- Answers without login: +30
- Speed of first answer: +10
- Lists tools: +10
- Tool descriptions: +15
- Parameter descriptions: +10
- Read/write annotations: 0
- Safe test call: +20
- More than 80 tools: 0
Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.
Install
Remote URL
https://fomox.io/api/assay/mcpTools
6 tools listed at last check
verify_paymentCheck whether a crypto payment really settled and how much was ACTUALLY delivered, which is often not the amount the transaction claims. Use this before crediting anyone for an incoming payment. Returns `delivered` (what truly moved), `claimed` (what the transaction says), `mismatch` (true when thelist_chainsList every chain this service can verify, with the confirmation depth each needs before a payment is treated as final, and how deeply it can be verified. Call this if you are unsure whether a chain is supported or what to pass as `chain`.list_failure_modesList every known way a blockchain payment can appear successful while being worth less than it claims, or nothing at all. Each entry explains what the chain does, what it costs you when you get it wrong, and the one-line fix. Useful when writing or reviewing code that credits users for incoming cryevaluate_spend_policyCheck a proposed payment against spending limits that live OUTSIDE your context, where no instruction in a prompt, a message or a web page can change them. Returns a signed allow or deny with reasons. Use this before executing any transfer on behalf of a user. It enforces velocity caps, per-actionrun_sandbox_casePractise on a payment designed to deceive you, with no money at risk. Returns a verification result shaped exactly like a real one for one of 19 adversarial cases. Decide whether you would credit it, then call check_sandbox_answer to find out whether you were right and what the mistake would have cocheck_sandbox_answerScore your decision on a sandbox case. Tell it whether you would have credited the payment and for how much, and it replies with whether that was correct and, if not, exactly what the error would have cost you in real units. This is the fastest way to find out whether your payment handling is actual
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