Marketplace · API · x402

memoryguard.grindfree.net/v1/screen

Memory-poisoning firewall for AI agents: screen content before it is written to long-term memory. Blocks persistent instructions, sleeper triggers, trust/payment poisoning, injection, hidden Unicode and secrets; flags PII with a redacted copy. allow|review|block, source-aware.

Endpoint	`https://memoryguard.grindfree.net/v1/screen`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xe4b5827994B7B3Cd38F9830d9ECF58b51B77721b
method	POST
last updated	2026-11-10T18:21:13.532Z

Use it

Call it (an x402 client pays automatically)

curl -i https://memoryguard.grindfree.net/v1/screen
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-1558d1680eb1b180

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}