x402 tools: service finder, payment precheck/verify, Solana mint check, web-to-Markdown, email check
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Validate an email address without sending mail or SMTP probing: syntax, domain exists, MX / null-MX, SPF, DMARC, disposable domain (10k+ list), role account, free provider, typo suggestion. Verdict valid|risky|invalid. Paid HTTP: /v1/email-check. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
email address
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
claude mcp add --transport http pay-precheck https://x402-pay-precheck.moneytools.workers.dev/mcp
Validate an email address without sending mail or SMTP probing: syntax, domain exists, MX / null-MX, SPF, DMARC, disposable domain (10k+ list), role account, free provider, typo suggestion. Verdict valid|risky|invalid. Paid HTTP: /v1/email-check. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
| Argument | Type | Description |
|---|---|---|
| email* | string | email address |
{
"type": "object",
"required": [
"email"
],
"properties": {
"email": {
"type": "string",
"description": "email address"
}
}
}Rule-based safety check of a Solana SPL / Token-2022 mint: mint & freeze authority, permanent delegate, transfer hook/fee, pausable, default-frozen, largest-holder concentration. Returns riskScore 0-100 and verdict low|medium|high. Paid HTTP: /v1/sol-mint. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
| Argument | Type | Description |
|---|---|---|
| mint* | string | Solana mint address (base58) |
{
"type": "object",
"required": [
"mint"
],
"properties": {
"mint": {
"type": "string",
"description": "Solana mint address (base58)"
}
}
}Fetch a public web page and return clean Markdown (title, headings, links, lists, code) with a sha256 of the content. Respects robots.txt, public pages only, 1h cache. Paid HTTP: /v1/read. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
| Argument | Type | Description |
|---|---|---|
| url* | string | public http(s) page |
| maxChars | integer | 500-100000, default 20000 |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "public http(s) page"
},
"maxChars": {
"type": "integer",
"description": "500-100000, default 20000"
}
}
}Before paying an x402 endpoint: fetch it, validate its HTTP 402 payment requirements (scheme, network, payTo, amount, asset) and screen payTo against the OFAC SDN crypto-address list. Returns verdict ok|warn|block|not_402. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
| Argument | Type | Description |
|---|---|---|
| url* | string | x402 endpoint you plan to pay |
| method | string |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "x402 endpoint you plan to pay"
},
"method": {
"enum": [
"GET",
"POST"
],
"type": "string"
}
}
}Find which x402 paid service to call for a task. Returns endpoints ranked by relevance and live liveness (unpaid probe returned valid x402 terms, payTo OFAC-screened), latency and price; top 3 freshly pre-checked. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
| Argument | Type | Description |
|---|---|---|
| task* | string | what you need, e.g. 'token price on base' |
| limit | integer | |
| network | string | base or CAIP-2 |
| maxPrice | number | max USD per call |
{
"type": "object",
"required": [
"task"
],
"properties": {
"task": {
"type": "string",
"description": "what you need, e.g. 'token price on base'"
},
"limit": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"network": {
"type": "string",
"description": "base or CAIP-2"
},
"maxPrice": {
"type": "number",
"description": "max USD per call"
}
}
}Verify an on-chain USDC settlement: tx hash on network (base, base-sepolia, polygon, arbitrum, avalanche, bsc) paid amount to payTo. Returns verdict valid|invalid|pending|not_found. Referral program: add ref=<your 0x Base wallet> to paid HTTP calls you route here and earn 20% of net revenue = amount received minus facilitator and gas fees (off-chain ledger, settled monthly in USDC on Base after manual review, min 1 USDC; earnings at GET /v1/referral/{address}).
| Argument | Type | Description |
|---|---|---|
| from | string | |
| match | string | |
| payTo* | string | |
| amount* | string | decimal USDC, e.g. 0.01 |
| txHash* | string | |
| network | string | |
| minConfirmations | integer |
{
"type": "object",
"required": [
"txHash",
"payTo",
"amount"
],
"properties": {
"from": {
"type": "string"
},
"match": {
"enum": [
"exact",
"atLeast"
],
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string",
"description": "decimal USDC, e.g. 0.01"
},
"txHash": {
"type": "string"
},
"network": {
"type": "string",
"default": "base"
},
"minConfirmations": {
"type": "integer"
}
}
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 3, 2026.