Tools for humans.
Pay-per-call for agents.
A growing collection of utilities with a free web form for people and a machine-payable API for AI agents. No accounts, no subscriptions — just x402 micropayments.
$ curl -X POST https://x402-tools-hub.ivanbenks7-e96.workers.dev/api/web-markdown \
-H "Content-Type: application/json" \
-d '{"url":"https://example.com"}'
402 Payment Required
→ pay $0.001 USDC on base, retry with X-PAYMENT headerAvailable tools
Free in the browser. Machine-payable over the API.
Flight Recorder
The black box for x402: inspect every USDC receipt an address got on Base.
Agent Passport
Reputation passport for x402 payer wallets: a 0-100 Trust Score from on-chain history.
x402 Simulate
Cost modeller for x402 workloads: effective price per call, network overhead and break-even.
Merchant Trust
Reputation for a receiving wallet: volume, distinct payers, frequency and concentration risk.
Agent Registry
Live, stateless directory of agents and merchants built one hop from seed wallets on Base.
Agent Studio
Build an x402 agent from a short description: manifest, capability check and a dry-run cost model.
Web Markdown
Convert any public web page into clean, readable Markdown.
URL Metadata
Extract title, description, OpenGraph tags and favicon from a URL.
Token Counter
Count LLM tokens for a given text and model family.
JSON Studio
Format, minify, validate, query and diff JSON locally in the browser.
JWT Inspector
Decode, audit, verify and diff JSON Web Tokens locally in the browser.
Regex Mentor
Test, debug and explain regular expressions with highlighted matches.
Encoder Hub
Base64, URL, HTML entities, hex, binary and JWT segment encode/decode.
Diff Pro
Line-level text diff with unified and side-by-side views.
Time Toolkit
Convert Unix, ISO, RFC 2822 and natural-language dates; time zones and durations.
env Studio
Parse .env files, mask secrets and convert to JSON, YAML, docker-compose or shell.
Hash Studio
Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes locally.
Color Palette
Palette generator with HEX/RGB/HSL, WCAG contrast and CSS/Tailwind export.
Unit Converter
Convert length, weight, volume, temperature, area, speed and data units.
Git Explainer
Plain-English explanations for git commands and error messages.
Meta Tags
Generate SEO, OpenGraph and Twitter Card meta tags with live preview.
Wallet Intel
Base wallet snapshot: ETH balance, top ERC-20 tokens, transfer history and a heuristic risk score.
Agent Intel
Agent Intelligence: read a page as Markdown, discover counterparties and trust-score a wallet in one pipeline.
Agent Route
Agent Route: plan the optimal sequence of hub tools for a task, with budget check.
402 Probe
Probe any URL: is it a live x402 endpoint, and what are its exact payment terms?
Well Known
Read the discovery surface of any origin: well-known/x402, openapi, agent.json, llms.txt, robots.txt.
Agent Health
Agent Health: cosmic diagnostics — payment readiness + discovery + latency in one scan.
Address Toolkit
Validate, EIP-55 checksum and classify any EVM address (EOA vs contract).
Base Gas
Live Base gas price and transaction cost estimate in USD.
Payment Decoder
Decode a raw PAYMENT-REQUIRED header or 402 body into structured payment fields.
Receipt Notary
Notarize a paid response: SHA-256 + timestamp + resource + tx into a compact receipt.
Token Inspector
Fact-only token identity for Base: contract vs EOA, ERC-20 vs ERC-721, name, symbol, decimals, total supply and owner.
Token Quote
Fact-only token quote: price, 24h change, source and timestamp. No advice, no history.
Hn News
Fresh Hacker News stories by keyword: AI agents, x402, crypto infra, incidents. Public Algolia API, no key.
X Search
Recent X/Twitter mentions and news by keyword — agent launches, token drama, AI agent incidents.
AI Incidents
Rotating feed of AI agent incidents and risks: failures, bugs, hacks, hallucinations, leaks. HN + Google News.
Proof of work
Live numbers, no marketing. Source of truth: on-chain USDC (Base) receipts.
Endpoints
… / 6 healthy
live self-probe
Payments received
… tx · … USDC
all inbound, on-chain
External payers
… wallets · … tx
test wallet excluded
Top tools by calls
Real request counts since the current worker isolate started.
loading…Machine-readable: /api/stats · /api/status · /status. External payments exclude the known test wallet — shown separately, never hidden.
How agents pay
Three steps, no signup.
Request
Call any /api/* endpoint. The server replies 402 with payment requirements.
Pay
Sign a USDC transfer on base via the x402 facilitator. Micropayments, fractions of a cent.
Retry
Resend the request with the X-PAYMENT header. Get the result.