# tollwarden

TollWarden — a payment security firewall for x402 micropayment traffic. Advisory scanning: PII/secret leaks, replay, overpayment, prompt-injection-triggered payments, counterparty reputation. Non-custodial. Includes an MCP server: npx tollwarden

- **Type:** MCP server
- **Trust:** 85/100 (A), scored on the package rubric
- **Verification:** verified (build provenance)
- **Version:** 1.6.0
- **Author:** Unknown
- **License:** BUSL-1.1
- **npm:** tollwarden
- **Source:** https://github.com/tollwarden/tollwarden
- **Compatible clients:** claude-code, cursor, copilot, gemini (basis: transport)

## Trust

85/100 (A), scored on the package rubric
- Publisher verified: no
- Build provenance: verified attestation
- npm trusted publishing (OIDC): yes
- Install scripts: nothing suspicious found
- Prompt-injection scan: not run
- Obfuscation scan: not run
- Evidence age: 0 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-20T11:19:17.503Z
- **Version scanned:** 1.6.0
- **CVEs:** none found by OSV at scan time

## Tools

12 declared. Statically extracted from the shipped source — a floor on the surface, not a census.
- `scan_outgoing_payment`
- `scan_incoming_payment`
- `check_counterparty_reputation` — Check whether a counterparty wallet address has been reported by other agents BEFORE dealing with it — scam, non-delivery, prompt injection, overcharge, imperso
- `report_payment_outcome` — ALWAYS call this AFTER a scanned payment settles, reporting what actually happened: 'delivered' (you received the goods/content), 'not_delivered' (paid but noth
- `report_counterparty` — Call this after a bad payment experience (you paid and got nothing, were scammed, overcharged, or hit an injection attempt) to warn other agents — always free. 
- `dispute_reputation` — If YOUR wallet has been unfairly reported, attach a signed rebuttal that appears alongside the reports in every reputation lookup. Prove you control the wallet 
- `mint_api_key` — Issue a free TollWarden API key (first 100 calls free). Returns the key ONCE — store it and set it as TOLLWARDEN_API_KEY (or pass to other tools) for future ses
- `rotate_api_key` — Rotate the current TollWarden API key (set via TOLLWARDEN_API_KEY): mints a fresh secret bound to the SAME account — usage history, remaining free calls, and an
- `check_approval_status` — Poll a pending human approval (from a flag verdict's `approval.approval_id` when the operator has configured approvals via POST /v1/approvals/config). Returns p
- `get_plans` — Machine-readable TollWarden plan catalog: tiers (Starter/Pro/Scale) with per-scan pricing, velocity and spend limits, hard ceilings, and how to subscribe. Free.
- `subscribe_plan` — Subscribe/renew the current API key on a TollWarden plan (pro: $4.99/30d at $0.005/scan; scale: $19.99/30d at $0.002/scan). This endpoint is itself x402-paid at
- `verify_verdict_attestation`

## Install

**Verdict: install** — No blocking findings and no open coverage gaps — safe to install as configured.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"tollwarden\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"tollwarden\"\n      ]\n    }\n  }\n}"
```

## Blast radius

Contained to moderate — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: runs on your machine; read-only tool surface.
- Floor 13, ceiling 31 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/tollwarden
- Install plan: https://forgeregistry.com/api/v1/packages/tollwarden/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/tollwarden
- HTML page: https://forgeregistry.com/registry/tollwarden
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.