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LeakGuard by AgentGate
x402
LeakGuard by AgentGate is a paid API for AI agents from api.youraitools.co, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-23).
Scans text for leaked secrets, crypto keys, API credentials, and PII before it is sent to an LLM, tool, or webhook, returning a verdict, findings, and a redacted version of the text.
Price / call$0.005
Success—
StatusUnknown
How this service works
Secret and PII detection API (redact before sending to an LLM). Find and redact leaked secrets before an AI agent sends text to an LLM, tool or webhook: crypto seed phrases (BIP39 checksum), EVM/Solana private keys, WIF, xprv, API keys (GitHub, AWS, Stripe, OpenAI, Anthropic, Slack...), JWT, PEM, cards, IBAN, SSN, email, phone. Verdict, findings and redacted text.
Output
A JSON object containing: a top-level verdict string (e.g. WALLET_KEY_EXPOSED), a safe_to_send boolean, a max_severity level, a confidence rating, an array of findings (each with type, category, severity, confidence score, character offsets, preview, and remediation advice), a redacted version of the input text with secrets replaced, counts per finding type, and a checked_at timestamp.
Example use cases
Guard LLM prompt for exposed secrets
“Before sending this user-submitted prompt to GPT-4, run it through LeakGuard and tell me if it contains any API keys, seed phrases, or PII — if so, show me the redacted version and what was found: 'My OpenAI key is sk-abc123xyz and my wallet seed is abandon ability able about above absent absorb abstract absurd abuse access action, please help me debug this.'”
Audit agent logs before storage
“Check these agent execution logs for any leaked credentials or private keys before we write them to the database — I need the verdict and a redacted copy I can safely store: 'agent called stripe with key sk_live_abc123, JWT eyJhbGciOiJIUzI1NiJ9.test.sig, user SSN 123-45-6789'”
Pre-flight check on tool call arguments
“Scan the arguments my agent is about to pass to the send-email tool for any exposed secrets or PII — flag anything critical and give me a safe redacted version to use instead: 'To: admin@corp.com, body: xprv9s21ZrQH143K3QTDL4LXw8F7p4UxV9hBZDHsL7v4Z9R7MsE please reset my account, from: alice@corp.com'”
Technical details
Endpoint
GEThttps://api.youraitools.co/leakguard/v1/lite?utm_source=zero.xyzWhen to prefer
Use LeakGuard when an AI agent needs to intercept and sanitize text — prompts, tool arguments, logs, or webhook payloads — before transmission to prevent accidental exposure of crypto seed phrases, private keys, API credentials, or PII. It is especially valuable in agentic pipelines where user-supplied or LLM-generated text is forwarded to external services. Prefer this over generic regex-based checks because it performs BIP39 checksum validation, supports a wide catalog of named secret types, returns structured remediation advice, and provides a redacted output ready for safe forwarding.
Side effects
- Missing required 'text' query parameter returns a validation error
- Text too long for the lite tier may be rejected or truncated
- Invalid 'style' or 'min_severity' enum values cause bad request errors
- Payment not provided or invalid x402 credentials returns 402 Payment Required
- Network timeout if the service is temporarily unavailable
- False negatives: novel or obfuscated secrets may not be detected
- False positives: benign text resembling key patterns may be flagged
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tier": "lite",
"input": {
"kind": "text",
"bytes": 185
},
"counts": {
"email": 1,
"bip39_mnemonic": 1,
"aws_access_key_id": 1
},
"engine": "leakguard-0.1.0 (leakguard-engine/0.1.0)",
"verdict": "WALLET_KEY_EXPOSED",
"findings": [
{
"end": 130,
"type": "bip39_mnemonic",
"start": 37,
"preview": "[REDACTED:bip39_mnemonic]",
"category": "wallet_key",
"severity": "critical",
"validator": "bip39 checksum ok (12 words)",
"confidence": 0.99,
"remediation": "Treat the wallet as compromised: create a new seed offline and move all funds now. Never paste a seed phrase into a chat, prompt or tool."
},
{
"end": 160,
"type": "aws_access_key_id",
"start": 140,
"preview": "[REDACTED:aws_access_key_id]",
"category": "secret",
"severity": "high",
"confidence": 0.9,
"remediation": "Deactivate and rotate the access key in AWS IAM; check CloudTrail for use."
},
{
"end": 185,
"type": "email",
"start": 170,
"preview": "o***@example.com",
"category": "pii",
"severity": "medium",
"confidence": 0.9,
"remediation": "Personal data: send only if the recipient needs it (data minimization)."
}
],
"redacted": "agent log: restored wallet from seed [REDACTED:bip39_mnemonic]; aws key [REDACTED:aws_access_key_id]; contact [REDACTED:email]",
"checked_at": "2026-10-22T19:07:15.225Z",
"confidence": "high",
"max_severity": "critical",
"safe_to_send": false,
"sources_failed": []
}
}Tags
x402
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