{"name":"io.github.SolomonisBlack/tollbooth-x402","slug":"solomonisblack-tollbooth-x402","title":null,"description":"Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.","url":"https://mcp.market/server/solomonisblack-tollbooth-x402","rating":null,"grade":"A","score":85,"certified":false,"status":"active","category":"finance","tags":["finance"],"presence":{"score":21,"stars":0,"forks":0,"downloads_week":40,"last_push_at":"2026-07-13T21:59:03.000Z","license":"MIT"},"uptime":null,"claimed":false,"transport":"npm","callable_via_gateway":false,"default_price_micros":0,"repository":"https://github.com/SolomonisBlack/tollbooth-x402","website":"https://x402toll.com","version":"0.6.0","remotes":[],"packages":[{"registryType":"npm","identifier":"tollbooth-x402","version":"0.6.0","transport":{"type":"stdio"}}],"tools":[{"name":"tollbooth_catalog","description":"List every Tollbooth paid endpoint at x402toll.com — verified calculators for tax, crypto/DeFi, lending, real estate, retirement, and business — with x402 prices, input schemas, methods, and golden-vector evidence. Free.","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_golden","description":"Free verifiability check: returns a tool's published golden vector — for most tools, machine-checkable {sampleInputs, expectedResult, expectedResponseHash}. POST the sampleInputs to the paid endpoint and confirm the result + hash match to verify our math without trusting us.","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_gvp_check","description":"Neutral Golden-Vector Provenance check for ANY service's answer (not just Tollbooth's). Pass a GVP response object plus the inputs it was computed from; this recomputes the response's OWN sha256 over {endpoint, inputs, result, method, dataVintage} and reports whether it is self-consistent and GVP-1 complete (formula trace + data vintage + reproducible hash), with a \"self-consistent · reproducible\"","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_how_to_pay","description":"How an agent pays a Tollbooth endpoint with x402 (v2) on Base: the 402 flow, the PAYMENT-SIGNATURE header, and client library pointers. Free.","write_action":true,"price_micros":0,"input_schema":null},{"name":"tollbooth_preview","description":"Free coarse preview of a Tollbooth tool (rounded headline figure only; the paid endpoint returns the full verified breakdown). Previewable tools include paycheck, self-employment-tax, capital-gains-tax, mortgage-affordability, llc-cost, debt-plan, impermanent-loss.","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_quote","description":"See the exact price AND the response shape BEFORE you pay. Give a tool id (e.g. \"paycheck\", see tollbooth_catalog) or a full paid path (\"/v1/paycheck\") and this decodes the endpoint's HTTP 402 x402 challenge — returning the amount in USDC atomic units + USD, asset, network, payTo, timeout, the resource URL, and (when discoverable) example input + paid-response shape. Nothing is spent. Call this fi","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_recommend","description":"Given a plain-English need (e.g. \"how much tax on my bonus\", \"required minimum distribution\"), returns the Tollbooth tools most likely to answer it, ranked, with their x402 prices and URLs. Free.","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_spec","description":"The open provenance standard Tollbooth implements and authors — the rules a verified-computation service follows so agents can trust and re-derive its answers. Free.","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_verify","description":"Confirm or deny a claimed answer — from ANY source (another model, a spreadsheet, a competitor) — against Tollbooth's verified engine, for free. It returns ONLY whether the claim matches and which field NAMES were wrong; it NEVER reveals the correct value, so you can check a number you got elsewhere without getting the answer for free. Pass the same inputs the answer was computed from plus the cla","write_action":false,"price_micros":0,"input_schema":null},{"name":"tollbooth_verify_hash","description":"Free provenance check: re-derives the SHA-256 response hash of a previous Tollbooth paid response from its inputs and reports whether it matches (detects tampering).","write_action":false,"price_micros":0,"input_schema":null}],"scan":{"score":85,"grade":"A","scanned_at":"2026-09-25T17:26:29.462Z","report":{"scannerVersion":"0.1.9","scannedAt":"2026-09-25T17:26:29.403Z","components":{"code":{"score":25,"max":25,"notes":["2 source files scanned"]},"reliability":{"score":-1,"max":20,"notes":["no gateway calls yet and no remote to probe"]},"poisoning":{"score":-1,"max":15,"notes":["tools not inspected (local package is not executed); not counted"]},"auth":{"score":12,"max":15,"notes":["local package, no credentials required"]},"maintenance":{"score":12,"max":15,"notes":["last push 74 days ago"]},"identity":{"score":6,"max":10,"notes":["registry namespace matches repository owner"]}},"findings":[],"inputs":{"packages":[{"registryType":"npm","identifier":"tollbooth-x402","version":"0.6.0","found":true,"license":"MIT","hasInstallScripts":false,"dependencyCount":2,"publishedAt":"2026-07-18T14:04:59.824Z","repositoryUrl":"git+https://github.com/SolomonisBlack/tollbooth-x402.git","weeklyDownloads":40}],"repo":{"found":true,"owner":"SolomonisBlack","repo":"tollbooth-x402","archived":false,"pushedAt":"2026-07-13T21:59:03Z","stars":0,"forks":0,"openIssues":0,"ownerType":"User","ownerAvatarUrl":"https://avatars.githubusercontent.com/u/278876263?v=4","ownerCreatedAt":"2026-04-24T04:30:51Z"},"icon":{"url":"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='7' fill='%235eead4'/%3E%3Ctext x='16' y='23' font-family='monospace' font-size='21' font-weight='700' text-anchor='middle' fill='%2305231f'%3Ex%3C/text%3E%3C/svg%3E","source":"site"},"presence":{"stars":0,"forks":0,"downloadsWeek":40,"license":"MIT","lastPushAt":"2026-07-13T21:59:03.000Z","score":21}}}},"grade_history":[],"reviews":[]}