MCP.Market

HTTP 402 AI Tollbooth MCP server

online · 100% uptime
by RobotFleet-HQ·io.github.RobotFleet-HQ/http-402-ai-tollbooth·v1.0.0
No reviews yet

Free MCP troubleshooting-preview tools; purchases stay human-directed.

B79/100grade B
Write a reviewRun it
What users say
No reviews yet
Be the first
Safety scan
B79/100

full report

Adoption
New

0 stars

Reviews

Write one

Nobody has reviewed HTTP 402 AI Tollbooth yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

HTTP 402 AI Tollbooth tools (4, 1 write)

write = sends, deletes, buys or posts
  • buy_productwrite actionFree

    Return purchase directions for a product without initiating or paying a transaction.

  • list_payment_methodsFree

    List the currently enabled payment rails and their public machine-readable contracts.

  • list_productsFree

    List all products, categories, tiers, prices, item counts, and endpoint paths.

  • preview_productFree

    Get exactly three free sample records before purchase.

Public scan report

scanner v0.1.10 · 2026-10-24 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1152ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 18 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How HTTP 402 AI Tollbooth compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
79/100
higher than 58% of 48,243 servers
Tools
4
the typical server has 7
Tools that change things
25%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
830 ms
faster than 17% of 30,027 servers

What its tools let an agent do: 3 read · 1 change

Install HTTP 402 AI Tollbooth in Claude Code, Cursor or VS Code

claude mcp add --transport http http-402-ai-tollbooth https://http-402-ai-tollbooth.rsaun-lightning.workers.dev/mcp
Add to Cursor

What the publisher says

From the HTTP 402 AI Tollbooth repository's README, as published. We do not edit it. Read it on GitHub

HTTP 402 AI Tollbooth

Agent-ready developer troubleshooting data, sold per request over Bitcoin Lightning.

Live: https://http-402-ai-tollbooth.rsaun-lightning.workers.dev

HTTP 402 AI Tollbooth gives developers and AI agents three useful records free, then unlocks complete structured datasets with a BOLT11 Lightning payment. There are no accounts, subscriptions, credit cards, or API keys.

This is a public, documentation and example repository. The production Worker implementation remains private and is not included here.

Try it now

List the complete catalog:

curl -sS https://http-402-ai-tollbooth.rsaun-lightning.workers.dev/api/catalog

Preview exactly three records without payment:

curl -sS https://http-402-ai-tollbooth.rsaun-lightning.workers.dev/api/preview/api-error-fixes

Request the full product and receive an HTTP 402 Lightning challenge:

curl -i https://http-402-ai-tollbooth.rsaun-lightning.workers.dev/api/data/api-error-fixes

The last command creates an invoice. Do not run it unless you intentionally want a payment challenge; simply requesting it does not spend sats.

Why agents use it

  • 203 products across DevOps, APIs, ML/AI, Web/Frontend, and Databases
  • Entry, Standard, and Premium datasets with 50, 100, or 200 records
  • Exactly three free records per product for try-before-you-buy discovery
  • Stable errorcode, description, and programmaticfix fields
  • HTTP 402 and Bitcoin Lightning payments without user accounts
  • OpenAPI 3.1, MCP discovery metadata, and llms.txt
  • Deterministic fallback generation for resilient dataset delivery
  • Durable one-time redemption and replay protection
  • Future x402 settlement is documented but remains disabled pending verification

Architecture

AI agent / developer
        |
        | HTTPS: catalog, preview, paid dataset
        v
Cloudflare Worker
   |         |                    |
   |         |                    +--> Alby --> Bitcoin Lightning invoice
   |         |
   |         +--> Durable Objects --> atomic redemption + counters
   |
   +--> Workers KV --> invoice challenges + generated dataset cache

Pricing

See the pricing rationale, including the live-verified 2,000-sat receiving floor.

How to pay

  1. Request a paid product endpoint.
  2. Receive 402 Payment Required with a BOLT11 invoice and payment hash.
  3. Pay the invoice in a Lightning wallet.
  4. Retry the same endpoint with X-Payment-Hash and X-Payment-Preimage.
  5. Receive the full dataset once; replayed proofs are rejected.

Never publish or share a payment preimage before using it for its intended redemption. Future Solana USDC/x402 support is disabled until its manual verification process is completed.

Discovery documents

  • Smithery server card
  • OpenAPI 3.1 document
  • llms.txt
  • Billboard integration summary
  • Official MCP Registry readiness

Integrations

  • MCP metadata: tool descriptions for catalog, preview, and purchase discovery
  • MCP transport: a live Streamable HTTP JSON-RPC endpoint at /mcp with four read-only tools
  • OpenAPI: complete HTTP endpoint descriptions for agent frameworks
  • LLMs.txt: concise machine-readable project and payment guidance

Connect an MCP client to https://http-402-ai-tollbooth.rsaun-lightning.workers.dev/mcp. The server supports listproducts, previewproduct, listpaymentmethods, and buy_product. The last tool only returns payment directions and an HTTP 402 challenge; it never pays an invoice or creates a purchase on the caller's behalf.

For a complete no-payment example, see the Node agent recovery sample.

Runnable free sample

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-10-24restoreD → Bscore 79: Write-action tools reachable without authentication

HTTP 402 AI Tollbooth: common questions

Is HTTP 402 AI Tollbooth MCP server safe?
Mostly: it is graded B (79/100). Read the HTTP 402 AI Tollbooth safety report
How do I install HTTP 402 AI Tollbooth?
It runs remotely at http-402-ai-tollbooth.rsaun-lightning.workers.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does HTTP 402 AI Tollbooth need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is HTTP 402 AI Tollbooth maintained?
The last commit was 30 days ago (2026-10-06). The latest release is v1.0.0.
Is HTTP 402 AI Tollbooth up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does HTTP 402 AI Tollbooth compare with other MCP servers?
safety score 79/100 (higher than 58% of 48,243 servers); tools 4 (the typical server has 7); tools that change things 25% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

More from RobotFleet-HQ →