X402 Notary MCP vs Privacyscrubber MCP
A side-by-side look at the X402 Notary MCP and Privacyscrubber MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose X402 Notary MCP for security work as a local process; choose Privacyscrubber MCP for security as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose X402 Notary MCP when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
WALLET_PRIVATE_KEY, NOTARY_RAIL, NOTARY_BASE_URL, SOLANA_PRIVATE_KEY. - You want tools like
notarize_inference, notarize_batch, verify_attestation.
Choose Privacyscrubber MCP when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
audit_context, sanitize_text, scrub_text.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Security | Security |
| Quality signal | 63/100 · Good | 65/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | WALLET_PRIVATE_KEYNOTARY_RAILNOTARY_BASE_URLSOLANA_PRIVATE_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 2 |
| Directory activity | 2 views 0 installs 0 upvotes | 5 views 0 installs 0 upvotes |
| Tools | 6 | 23 |
| Full listing | View X402 Notary MCP | View Privacyscrubber MCP |
Tools & capabilities
X402 Notary MCP tools 6
notarize_inferenceGet a cryptographic receipt for one AI inference. Returns a signed Ed25519 attestation, sha256 content hash, and Merkle chain-anchor status for {prompt, response, model_id}. The notary does NOT store your prompt or response — only the hash is retained. Costs $0.001 USDC via x402 (requires WALLET_PRIVATE_KEY for a Base wallet).notarize_batchNotarize up to 20 AI inferences in one call — one signed attestation per record. Ideal for audit trails and agent pipelines. Costs $0.005 USDC via x402 (requires WALLET_PRIVATE_KEY for a Base wallet).verify_attestationFREE — verify any attestation issued by the notary. Supply the attestation_id plus either the original content ({prompt, response, model_id}) or its content_hash. Returns the Ed25519 signature check, hash comparison, and a Merkle inclusion proof once the batch is sealed. No wallet needed.get_receiptFREE — fetch the public receipt for an attestation: content hash, model, timestamps, Ed25519 signature, and Merkle anchor proof. Raw prompt/response are never stored, so receipts contain proof material only. No wallet needed.notary_statsFREE — live aggregate stats: total notarizations, 24h volume, top models by attestation count, sealed/anchored Merkle batches. No wallet needed.notary_pubkeyFREE — the notary's Ed25519 public key (base64, raw 32 bytes) for fully offline signature verification. No wallet needed.
Privacyscrubber MCP tools 23
audit_contextSTEP 0 (Pre-Flight): Non-destructive security inspection of raw prompts or document chunks before sending to LLMs. Evaluates PII, secrets, risk severity (CLEAN, LOW, MODERATE, CRITICAL), and triggered regulatory frameworks (GDPR, HIPAA, SOC 2, PCI DSS) with zero text mutation.sanitize_textSTEP 1: Call this first. You MUST NOT process raw user data before calling this. Locally scrubs PII, secrets, and credentials (like API keys, passwords, emails, phones, names) from code, logs, or text. Replaces them with safe placeholders (e.g., [EMAIL_1], [API_KEY_1]). Keep your data secure before passing it to any LLM. (For in-code backend services or RAG vector pipelines outside of MCP, use '@privacyscrubber/sdk': npm i @privacyscrubber/sdk)scrub_textAlias for 'sanitize_text'. Locally scrubs PII and secrets before LLM ingestion.reveal_textSTEP 3: Call this last. You MUST pass your final generated response through this tool to restore tokens (e.g., [EMAIL_1]) back with the original private data from the local volatile RAM-only session map before showing it to the user.sanitize_fileReads a local file, sanitizes its contents using the selected profile, and outputs the safe version for AI analysis. Securely keeps original identifiers in memory.scrub_fileAlias for 'sanitize_file'. Reads and sanitizes a local file.audit_directory_for_piiScans a local directory for leaks of secrets, keys, and PII. Returns a summary report. Use this tool for Security Auditing.redact_fileAction/Redact: In-place redaction of a local file. Replaces PII and secrets with tokens and saves the file. By default, creates a .bak backup. Use dry_run=true to test without modifying.create_default_configCreates a default 'privacyscrubber.json' configuration file in the active workspace root directory if one does not exist. Includes template structures for custom regex rules and exclusion bypass patterns.generate_compliance_reportGenerates an official Zero-Trust Compliance Audit Certificate (GDPR, HIPAA, EU AI Act, SOC 2) for the current MCP session. Returns cryptographic session hash, masked entities breakdown, and compliance certification.mark_false_positiveMarks a previously detected token as a false positive. The original plaintext value will be excluded from all future sanitize_text calls in this session. Returns the restored original value and updated ignore list size.check_statusReturns the current PrivacyScrubber MCP tier, session usage, available profiles, and PRO upgrade instructions. Call this to see your license status or get setup help.- +11 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
X402 Notary MCP
{
"mcpServers": {
"forgemeshlabs-x402-notary-mcp": {
"command": "npx",
"args": [
"-y",
"@forgemeshlabs/x402-notary-mcp"
],
"env": {
"WALLET_PRIVATE_KEY": "YOUR_WALLET_PRIVATE_KEY_HERE",
"NOTARY_RAIL": "YOUR_NOTARY_RAIL_HERE",
"NOTARY_BASE_URL": "YOUR_NOTARY_BASE_URL_HERE",
"SOLANA_PRIVATE_KEY": "YOUR_SOLANA_PRIVATE_KEY_HERE"
}
}
}
}
Privacyscrubber MCP
{
"mcpServers": {
"moxno-privacyscrubber-mcp": {
"command": "npx",
"args": [
"-y",
"@privacyscrubber/mcp-server"
]
}
}
}
Frequently asked questions
X402 Notary MCP is categorized under Security and uses a local stdio subprocess. Privacyscrubber MCP belongs to Security and uses a local stdio subprocess. Pick X402 Notary MCP for security work and Privacyscrubber MCP for security.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
X402 Notary MCP has no declared pricing — check the project's own site. Privacyscrubber MCP is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add forgemeshlabs-x402-notary-mcp and moxno-privacyscrubber-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, X402 Notary MCP has a quality signal of 63/100 (Good) with 2 views, 0 installs and 0 GitHub stars. Privacyscrubber MCP has 65/100 (Great) with 5 views, 0 installs and 2 GitHub stars.