16 small, sharp tools your agent reaches for constantly — validate JSON, convert formats, hash, diff, generate QR codes, validate phone numbers, find and verify email addresses — from 1 credit per call.
Credits are charged per call; x402 is the per-call USDC price for keyless agent payments. Advertised price = charged price, always.
| Tool | What it does | Credits | x402 (USDC) |
|---|---|---|---|
validate-data | Validate JSON data against a JSON Schema | 1 | $0.010 |
convert-format | Convert data between JSON, YAML, CSV, and XML formats | 2 | $0.010 |
jsonpath-query | Run JSONPath expressions against any JSON payload | 1 | $0.010 |
diff-text | Compare two text strings and return differences in unified, word, char, or JSON format | 2 | $0.010 |
transform-text | Transform text: uppercase, lowercase, trim, reverse, slug, title, camel, snake, base64 | 3 | $0.010 |
readability-score | Compute Flesch-Kincaid readability, grade level, word count, and read time | 2 | $0.010 |
generate-hash | Generate cryptographic hashes (sha256, sha512, md5, sha1) | 1 | $0.010 |
generate-uuid | Generate UUIDs (v1/v4), secure random tokens, and API-key-format strings | 1 | $0.010 |
qr-code | Generate QR codes from text or URLs (PNG data URL or SVG) | 2 | $0.010 |
barcode-generate | Generate Code128 barcodes as SVG | 2 | $0.010 |
timezone-convert | Convert a datetime between any two IANA timezones | 1 | $0.010 |
phone-validate | Parse and validate phone numbers in any format — E.164, carrier type, country | 2 | $0.010 |
email-verify | Deep email validation: syntax, MX record check, disposable domain detection | 3 | $0.010 |
email-find | Find email addresses for a person at a company domain | 110 | $0.120 |
email-send | Send transactional emails via Resend | 3 | $0.010 |
send-email | Send transactional emails via Resend — plain text or HTML. | 3 | — |
Call any tool: POST https://archtools.dev/v1/tools/<tool> with a Bearer key — or with no key at all via x402 USDC payments. Schemas for every tool: openapi.json · llms-full.txt.
Sign up free — 100 credits, 25 usable instantly, no card required. Top up with one-time packs: 3,000 for $9, 25,000 for $49, 125,000 for $199. Credits never expire.
No signup at all. Your agent gets a 402 Payment Required with exact payment instructions, pays in USDC, and retries. Works on 9 chains including Base, Ethereum, Arbitrum, Polygon, Optimism, Avalanche, Unichain, Monad, and Solana.
Web & Data · Crypto · AI & Media · Utilities — or see the full 63-tool overview and the MCP server.