AgentUtility Prooflayer — Watchlist

MCP100 Assessment

Watchlist / Tracking

Why we’re tracking it

Follow-up value is specific to Prooflayer deployment and code-risk scanner tools: Do scanner verdicts retain evidence and limitations rather than imply that an app is certified safe to ship?

Reviewed Oct 5, 2026 · Documentation review; complete setup workflow not independently tested

Best fit

Call pay-per-use proof/verification tools once official functions and financial authority are checked.

What we know

MCP server for the @agentutility prooflayer cluster — pay-per-call x402 tools, USDC… Exact operational authority remains unverified from first-party package documentation and must not be inferred. Source-derived feature labels are preliminary; obtain official runtime/tool evidence before applying uncertain fields.

Maintenance / activity evidence

@agentutility/mcp-prooflayer 0.3.3 published 2026-07-21T19:50:29.719Z

Tracking evidence observed Oct 5, 2026. These dated signals do not establish current maintenance. Reviewed enrichment confidence: low.

Verification gaps / watch-outs

Installation and comprehensive security have not been independently audited.
Permissions not yet verified. Complete write authority is not verified.
Authentication not yet verified.
Sensitive access: Proof inputs, Payment context

Authority is not fully established. Do not treat unknown writes/auth as read-only or absent.

Full authority, access and evidence limits are available in Review context and Access & risk.

All limitations / Review context

Do scanner verdicts retain evidence and limitations rather than imply that an app is certified safe to ship?

The bounded review of the publisher's documented Prooflayer deployment and code-risk scanner tools and release notices identified no disclosed material condition preventing an accurately scoped public tracking entry. The resource's operational permissions remain uncertainty; this assessment does not certify installation safety.

Authority is not fully established. Do not treat unknown writes/auth as read-only or absent.
Sensitive access: Proof inputs, Payment context
Complete write authority is not verified.
Installation, client compatibility and comprehensive security have not been independently audited. Authentication and access depend on the configured services.
Runtime behavior, dependencies and undisclosed vulnerabilities were not independently audited.
Documented tool authority and any remote data handling must be checked before installation or use.
Tool inventory, client matrix and permissions completeness were not requirements for this Radar tracking review.
repositoryIdentity: no confirmed package-to-repository binding
authentication: exact official auth and credential handling
writeActions: exact exposed tool mutation authority
dataHandling: provider destinations, retention and egress
cost: plans, pay-per-call charges, and payment authorization details
transport and actual executable entry point
Unverified tool semantics, security guarantees, data provenance and x402 signing
Do not apply unverified auth, permissions, transport, lifecycle or write actions; preserve any better existing profile values.

Original activity observations

@agentutility/mcp-prooflayer 0.3.3 published 2026-07-21T19:50:29.719Z

Technical identity

npm/@agentutility/mcp-prooflayer

Exact implementation source: https://www.npmjs.com/package/@agentutility/mcp-prooflayer ↗
Reviewed resource type: MCP Server
Package identity: npm:@agentutility/mcp-prooflayer

Evidence & Sources

Evidence basis: Recorded source evidence
Setup runtime verification: Not independently runtime-tested by MCP100 for this setup workflow.

Reviewed Oct 5, 2026 · Latest source observation Oct 8, 2026

Package registry ↗
@agentutility/mcp-prooflayer
Recorded package identity, distribution or download evidence.
Includes references whose attribution is not established.

Setup · Watchlist

Install & Agents

Publisher instructions.

Source evidence observed Oct 14, 2026.

Additional setup details required — see the specific gaps below.

Warning

Financial risk: package may sign and pay for calls or buy tokens. Never use production wallet/private key to test. Obtain explicit spending approval.
A private key is not an API key; do not expose it in project files, screenshots, logs, or chat transcripts.
Chargeable by default for tool invocation: per-call USDC/x402 pricing. Tool listing or MCP registration is not a free-use guarantee.
Literal command/entry path confirmed against official README; does not validate runtime or host compatibility.
Prior reviewed safety note: Do not treat starting the MCP process as consent to transact.
Prior reviewed safety note: Do not invoke any tool merely to confirm connectivity: publisher prices its tools per call in USDC.
Prior reviewed safety note: Do not supply or fund X402_PRIVATE_KEY for initial registration.
Prior reviewed safety note: Do not delete user data or assume this cancels upstream authorizations.
Client removal, software uninstall, persistent-data deletion and credential revocation are separate actions.

Install / connect
Publisher instructions
Publisher-documented install or connect path; prerequisites and any extra host configuration remain required.
publisher install or stdio launch · Publisher instructions
npx -y @agentutility/mcp-prooflayer
Configure / authenticate
MCP100 setup guide
Register local stdio MCP JSON with command npx and args ["-y","@agentutility/mcp-prooflayer"], env X402_PRIVATE_KEY. Publisher requires funded Base USDC wallet for paid x402 calls; DO NOT substitute an API key or include private key in public config.
Check connection
Suggested check
Confirm MCP registration and tool discovery only. Calling tools can charge USDC; do not call a paid tool for verification.
Remove / uninstall / revoke
MCP100 setup guide
If registered in Claude Code under the name `agentutility-prooflayer`, remove the client entry with `claude mcp remove agentutility-prooflayer`. For other MCP hosts remove the matching server/connector in that host’s MCP settings. Remove a globally installed software package separately if applicable; this does not delete data or revoke a service credential.
Client removal, software uninstall, persistent-data deletion and credential revocation are separate actions.
Separate credential guidance (provider revocation is not verified): Publisher uses X402_PRIVATE_KEY for x402 USDC payments. Removing this variable or the MCP registration prevents new calls from this host but does not revoke the wallet private key. If exposed, rotate by creating a new wallet and handling any funds with wallet-provider guidance; no invented vendor revoke CLI.
Remove client registration · Claude Code only · MCP100 composed guide
claude mcp remove agentutility-prooflayer

Official Documentation & Sources

https://www.npmjs.com/package/@agentutility/mcp-prooflayer ↗

What it does

MCP server for the @agentutility prooflayer cluster — pay-per-call x402 tools, USDC… Exact operational authority remains unverified from first-party package documentation and must not be inferred. Source-derived feature labels are preliminary; obtain official runtime/tool evidence before applying uncertain fields.

Capability: Security & Testing
Resource type: MCP Server
Industry: Cybersecurity
Best fit: Call pay-per-use proof/verification tools once official functions and financial authority are checked.

Representative uses

Invoke proof-layer tools

Limitations

Unverified tool semantics, security guarantees, data provenance and x402 signing
Do not apply unverified auth, permissions, transport, lifecycle or write actions; preserve any better existing profile values.

Reviewed access

Access & risk

Review the exact access boundary before connecting this MCP to accounts, credentials, or sensitive data.

Authentication: Not documented in the reviewed sources
Permissions: Not documented in the reviewed sources
Data handling: Not documented in the reviewed sources
Cost: Not documented in the reviewed sources
Risk and cautions: Authority is not fully established. Do not treat unknown writes/auth as read-only or absent.

Access scope and cautions

Write actions: Not verified
Sensitive access: Proof inputs Payment context
Risk level: high

The reviewed evidence does not establish the complete write authority of this MCP. Consult the unresolved evidence before granting write access.

FAQ

Based on reviewed evidence as of 2026-10-08. Watchlist tracking is not a recommendation or a security certification.

Which tasks are documented for this implementation?

The available discovery description lists: Invoke proof-layer tools. These descriptions do not establish a fully verified tool inventory.

Can it modify data or perform write operations?

Not verified. The available evidence does not establish the complete write authority.

What data-handling boundary should I consider?

Recorded sensitive-access context: Proof inputs; Payment context.

What limitations and risks should I check before use?

Authority is not fully established. Do not treat unknown writes/auth as read-only or absent. Unverified tool semantics, security guarantees, data provenance and x402 signing. Runtime behavior, dependencies and undisclosed vulnerabilities were not independently audited. Documented tool authority and any remote data handling must be checked before installation or use.