# Doormat Capital

> Small, honest software sold by the call: data APIs and checkers from 0.02 USDC on Base, or a finished custom build from 150 USDC. Every link below is a live product, not a description of one.

## Flagship products
- [signals](https://signals.sebastiaan-ba3.workers.dev): Lighter perpetuals funding & volume snapshot, plus a wallet safety check — scam-airdrop lure tokens flagged, full 5-chain balance breakdown. Free preview at /, paid Paid — /funding 0.02 USDC (intro through 17 Oct, then 0.05), /wallet-scan?address=0x... 0.05 USDC (intro through 17 Oct, then 0.20).
- [payverify](https://payverify.sebastiaan-ba3.workers.dev): Verify any Base USDC transaction — and get a flat-fee trade-verification certificate before you trust a P2P/OTC counterparty. Free — /verify?tx=0x... (also a real MCP server at /mcp, for agents), paid Paid — /statement?address=0x... 0.05 USDC (intro through 17 Oct, then 0.15) — a counterparty's recent USDC transfer history, flat fee, well under the ~0.5-1% a P2P escrow bot charges.
- [x402lint](https://x402lint.sebastiaan-ba3.workers.dev): Checks whether a paid API's 402 response actually speaks the x402 protocol correctly — and now tests live whether it can be tricked into giving itself away for free. Free — /lint?url=..., paid Paid — /deep-lint?url=... from 0.01 USDC (intro through 17 Oct, then 0.03); /conform?url=... 0.05 USDC — live adversarial test against garbage/fake payment proofs.

## Free tools (paid upgrade optional)
- [hookbin](https://hookbin.sebastiaan-ba3.workers.dev): Disposable webhook inbox — watch what actually gets POSTed to a URL. Paid upgrade: 0.05 USDC to extend a bin to 200 requests / 24h.
- [llmstxt-check](https://llmstxt.sebastiaan-ba3.workers.dev): Validates a site's llms.txt against the spec. Paid upgrade: 0.03 USDC to draft one from your homepage.
- [crawlercheck](https://crawlercheck.sebastiaan-ba3.workers.dev): Which of ~20 named AI crawlers your robots.txt allows or blocks. Paid upgrade: 0.03 USDC for the full report + snippet.
- [metacheck](https://metacheck.sebastiaan-ba3.workers.dev): SEO and social-preview meta tag checker. Paid upgrade: 0.02 USDC for fix snippets + preview cards.
- [mailcheck](https://mailcheck.sebastiaan-ba3.workers.dev): SPF / DKIM / DMARC checker for your own domain's email. Paid upgrade: 0.02 USDC for the DKIM probe + fix snippets.
- [secheaders](https://secheaders.sebastiaan-ba3.workers.dev): HTTP security header checker (HSTS, CSP, and more). Paid upgrade: 0.02 USDC for cookie audit + fix snippets.
- [jwtcheck](https://jwtcheck.sebastiaan-ba3.workers.dev): Decode a JWT and read its claims. Paid upgrade: 0.02 USDC to verify the signature.
- [cronparse](https://cronparse.sebastiaan-ba3.workers.dev): Explains a cron expression in plain English and shows next runs. Paid upgrade: 0.02 USDC to convert timezones + platform quirks.
- [corscheck](https://corscheck.sebastiaan-ba3.workers.dev): Tests a URL's real CORS headers against an origin you give it. Paid upgrade: 0.02 USDC for a multi-origin security report.
- [apecheck](https://apecheck.sebastiaan-ba3.workers.dev): Checks contract ownership and mint-function red flags on a Base token in 60 seconds — not a liquidity or holder-concentration check. Paid upgrade: 1.00 USDC for the full report (metadata, owner, activity).
- [aivisibility](https://aivisibility.sebastiaan-ba3.workers.dev): Checks llms.txt validity, AI-crawler robots.txt access, and OG/meta tag completeness in one report. Paid upgrade: 2 USDC one-time for every finding across all three checks.

## Custom build
- Data API (150 USDC/140 EUR, 2 days), monitoring bot (300 USDC/280 EUR, 3 days), full integration (500 USDC/460 EUR, 4 days). Quote first, 50% deposit, 50% on delivery.

## Launching a token or contract?
- Pre-Launch Contract Scan (29 USDC/27 EUR): automated Solidity static-analysis report plus an owner-privilege/rug-pattern scan, same day. Automated only, not a manual audit and not a certification -- the report says plainly what it did and didn't check. Order by email or Telegram.

## Contact
- Telegram: https://t.me/doormatcapitalbot
- Email: fleur.doormatcapital@gmail.com
- Wallet (USDC on Base): 0x202B73254C28fA012BD11ff50425D94534b95594