x402 Notary MCP (forgemeshlabs/x402-notary-mcp) is an MCP server listed on the M8ven Trust Index. It scores 89 out of 100, grade B. It declares 6 tools. The publisher has proved control of what we score (Verified Publisher). It is connected through the M8ven GitHub App, so the listing is re-checked on every push.

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B
Emerging
89/100

x402 Notary MCP

Cryptographic receipts for AI outputs — signed, chain-anchored, $0.001/call

→ forgemeshlabs/x402-notary-mcp· npm: @forgemeshlabs/x402-notary-mcp· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Sandbox Verified⚡ Live Monitored

every push re-verified

Who stands behind it

gmail.com (@forgemeshlabs) · Verified Publisher

Source: Glama

Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 2 credentials: SOLANA_PRIVATE_KEY, WALLET_PRIVATE_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
Are you the publisher? Confirm or correct these findings.
// tools this server exposes6 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

notarize_inference

Get 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_PRI…

notarize_batch

Notarize 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 Base or SOLANA_PRIVATE_KEY for Solana).

verify_attestation

FREE — 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_receipt

FREE — 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_stats

FREE — live aggregate stats: total notarizations, 24h volume, top models by attestation count, sealed/anchored Merkle batches. No wallet needed.

notary_pubkey

FREE — the notary's Ed25519 public key (base64, raw 32 bytes) for fully offline signature verification. No wallet needed.

// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configBASE_RPC_URL
configNOTARY_BASE_URLWhat chain and token? USDC on Base mainnet (eip155:8453) by default. Set NOTARY_RAIL=solana and =https://notary-solana.forgemesh.io for Solana mainnet USDC.
configNOTARY_RAILWhat chain and token? USDC on Base mainnet (eip155:8453) by default. Set =solana and NOTARY_BASE_URL=https://notary-solana.forgemesh.io for Solana mainnet USDC.
configSOLANA_KEYPAIR
🔐 secretSOLANA_PRIVATE_KEYis a dedicated low-balance Solana keypair for x402 micropayments. It may be a JSON byte array, base58, base64, or hex-encoded 32/64-byte key. Never use your primary wallet.
configSOLANA_PRIVATE_KEY_BYTES
🔐 secretWALLET_PRIVATE_KEYis a dedicated low-balance Base wallet for x402 micropayments — never your primary wallet. $1 of USDC notarizes 1,000 outputs.
// quality suggestions

Tests exist

No test files found

Add tests that exercise each declared tool.

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commit: f76bc0f450f484789505dc7e79f1e3d065fdcc8d
code hash: d79cf9c53aedbc1e54fb1fcbf34ded029926406f6964b5cd3b35644d9d25ce0e
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