Two ways to give your agent the 402 Index toolkit.
Install the MCP server
Direct programmatic discovery of every L402, x402, and MPP endpoint we index. Works in Claude Desktop, Claude Code, Cursor, Cline, Windsurf, Gemini CLI, and Codex.
SpellzCode — Caesar cipher, ROT13: shift letters by any amount (MPP)https://agent-data-tools.revmesh2074.workers.dev/text/caesar?text=Hello%2C+World%21
SpellzCode — Chat completion (Llama 3.3 70B or gpt-oss-120b) (MPP)https://agent-data-tools.revmesh2074.workers.dev/ai/chat-large?prompt=Explain+x402+in+one+sentence.
MPP
$0.01
developer-tools/utilities
healthy
245ms
self-registered
SpellzCode — Chat completion over GET (prompt in the query; same models and prices as the POST)https://agent-data-tools.revmesh2074.workers.dev/v1/chat/completions
x402
$0.0020
developer-tools/utilities
healthy
199ms
self-registered
SpellzCode — Chat completion over GET (prompt in the query; same models and prices as the POST) (MPP)https://agent-data-tools.revmesh2074.workers.dev/v1/chat/completions
MPP
$3000.00
developer-tools/utilities
healthy
199ms
self-registered
SpellzCode — Classify text into your labelshttps://agent-data-tools.revmesh2074.workers.dev/ai/classify?text=My+card+was+charged+twice+for+the+same+order.&labels=billing%2Cshipping%2Ctechnical%2Cother
x402
$0.01
developer-tools/utilities
healthy
223ms
self-registered
SpellzCode — Color palette generator: harmonies and shades from one colorhttps://agent-data-tools.revmesh2074.workers.dev/color/palette?color=%233366ff
x402
$0.01
developer-tools/utilities
healthy
356ms
self-registered
SpellzCode — Color palette generator: harmonies and shades from one color (MPP)https://agent-data-tools.revmesh2074.workers.dev/color/palette?color=%233366ff
SpellzCode — Company enrichment, domain intel: who runs a domain and on whathttps://agent-data-tools.revmesh2074.workers.dev/pack/domain-intel?domain=stripe.com
x402
$0.03
developer-tools/utilities
healthy
424ms
self-registered
SpellzCode — Company enrichment, domain intel: who runs a domain and on what (MPP)https://agent-data-tools.revmesh2074.workers.dev/pack/domain-intel?domain=stripe.com
SpellzCode — Compare two textshttps://agent-data-tools.revmesh2074.workers.dev/text/diff?a=one%0Atwo%0Athree&b=one%0A2%0Athree%0Afour
x402
$0.01
developer-tools/utilities
healthy
179ms
self-registered
SpellzCode — Compound interest calculator: future value with monthly contributionshttps://agent-data-tools.revmesh2074.workers.dev/calc/compound-interest?principal=10000&rate=7&years=10
x402
$0.01
developer-tools/utilities
healthy
170ms
self-registered
SpellzCode — Compound interest calculator: future value with monthly contributions (MPP)https://agent-data-tools.revmesh2074.workers.dev/calc/compound-interest?principal=10000&rate=7&years=10
MPP
$0.01
developer-tools/utilities
healthy
170ms
self-registered
SpellzCode — Convert a colourhttps://agent-data-tools.revmesh2074.workers.dev/color?color=%230f6cbd
x402
$0.01
developer-tools/utilities
healthy
392ms
self-registered
SpellzCode — Convert text casehttps://agent-data-tools.revmesh2074.workers.dev/case?text=user+profile+id&to=camel
SpellzCode — Counterparty check before paying an EVM addresshttps://agent-data-tools.revmesh2074.workers.dev/check/counterparty?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
x402
$0.01
developer-tools/utilities
healthy
419ms
self-registered
SpellzCode — Country factshttps://agent-data-tools.revmesh2074.workers.dev/country?country=SE
x402
$0.01
data/public-data
healthy
372ms
self-registered
SpellzCode — Crypto OHLCV candles: open, high, low, close and volume of Hyperliquid perps (MPP)https://agent-data-tools.revmesh2074.workers.dev/hyperliquid/candles?coin=BTC
MPP
$0.01
developer-tools/utilities
healthy
291ms
self-registered
SpellzCode — Crypto coin research pack: price, funding, depth, signalshttps://agent-data-tools.revmesh2074.workers.dev/pack/coin-research?coin=ETH
SpellzCode — Crypto order book, Hyperliquid: bids, asks, spread and depth of a perp (MPP)https://agent-data-tools.revmesh2074.workers.dev/hyperliquid/orderbook?coin=BTC
MPP
$0.01
developer-tools/utilities
healthy
348ms
self-registered
SpellzCode — Crypto prices, all coins: Hyperliquid mid prices (MPP)https://agent-data-tools.revmesh2074.workers.dev/hyperliquid/prices?coins=BTC%2CETH%2CSOL
MPP
$0.01
developer-tools/utilities
healthy
191ms
self-registered
SpellzCode — Currency exchange rates and conversionhttps://agent-data-tools.revmesh2074.workers.dev/fx
x402
$0.01
finance/fx-rates
healthy
243ms
self-registered
SpellzCode — Current time in a time zone and time zone conversionhttps://agent-data-tools.revmesh2074.workers.dev/time
x402
$0.01
tools/timing
healthy
179ms
self-registered
SpellzCode — Current weather and hourly forecast for any coordinateshttps://agent-data-tools.revmesh2074.workers.dev/weather
x402
$0.01
real-time-data/weather
healthy
200ms
self-registered
SpellzCode — DNS propagation check: answers from 5 resolvers worldwide (MPP)https://agent-data-tools.revmesh2074.workers.dev/dns/propagation?name=example.com
MPP
$0.01
developer-tools/utilities
healthy
318ms
self-registered
SpellzCode — DNS records lookup: A, AAAA, MX, TXT, CNAME, NS and more (MPP)https://agent-data-tools.revmesh2074.workers.dev/dns/lookup?name=example.com
MPP
$0.01
developer-tools/utilities
healthy
413ms
self-registered
SpellzCode — Decode a JWThttps://agent-data-tools.revmesh2074.workers.dev/jwt/decode?token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjMiLCJleHAiOjE3OTIyODE2MDB9.sig
x402
$0.01
developer-tools/utilities
healthy
198ms
self-registered
SpellzCode — Decode a Lightning invoicehttps://agent-data-tools.revmesh2074.workers.dev/ln-invoice?invoice=lnbc2500u1pvjluezsp5zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygspp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5xysxxatsyp3k7enxv4jsxqzpu9qrsgquk0rl77nj30yxdy8j9vdx85fkpmdla2087ne0xh8nhedh8w27kyke0lp53ut353s06fv3qfegext0eh0ymjpf39tuven09sam30g4vgpfna3rh
x402
$0.01
bitcoin/bolt11
healthy
305ms
self-registered
SpellzCode — Decode a Lightning invoicehttps://agent-data-tools.revmesh2074.workers.dev/ln-invoice
x402
$0.01
bitcoin/bolt11
healthy
237ms
self-registered
SpellzCode — Decode calldata: function and arguments of an EVM callhttps://agent-data-tools.revmesh2074.workers.dev/evm/decode-calldata?data=0xa9059cbb000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa960450000000000000000000000000000000000000000000000000000000000989680
x402
$0.01
developer-tools/utilities
healthy
367ms
self-registered
SpellzCode — Decode calldata: function and arguments of an EVM call (MPP)https://agent-data-tools.revmesh2074.workers.dev/evm/decode-calldata?data=0xa9059cbb000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa960450000000000000000000000000000000000000000000000000000000000989680
MPP
$0.01
developer-tools/utilities
healthy
367ms
self-registered
SpellzCode — Describe or question an imagehttps://agent-data-tools.revmesh2074.workers.dev/describe?url=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F4%2F47%2FPNG_transparency_demonstration_1.png
x402
$0.01
ai/image
healthy
195ms
self-registered
SpellzCode — Difference between two dateshttps://agent-data-tools.revmesh2074.workers.dev/date/diff?from=2026-01-01&to=2026-10-18
x402
$0.01
developer-tools/utilities
healthy
359ms
self-registered
SpellzCode — Discover documentation URLs from a bounded XML sitemaphttps://agent-data-tools.revmesh2074.workers.dev/sitemap?url=https%3A%2F%2Fagent-data-tools.revmesh2074.workers.dev%2Fexamples%2Fsitemap%2Fsource.xml
x402
$0.0020
developer-tools/utilities
healthy
241ms
self-registered
SpellzCode — Distance between coordinates: km, miles, bearing and midpointhttps://agent-data-tools.revmesh2074.workers.dev/geo/distance?lat1=59.3293&lon1=18.0686&lat2=51.5072&lon2=-0.1276
x402
$0.01
developer-tools/utilities
healthy
431ms
self-registered
SpellzCode — Distance between coordinates: km, miles, bearing and midpoint (MPP)https://agent-data-tools.revmesh2074.workers.dev/geo/distance?lat1=59.3293&lon1=18.0686&lat2=51.5072&lon2=-0.1276
MPP
$0.01
developer-tools/utilities
healthy
431ms
self-registered
SpellzCode — Domain DNS, registration age and email authenticationhttps://agent-data-tools.revmesh2074.workers.dev/domain?name=cloudflare.com
x402
$0.0050
data/domain-intelligence
healthy
227ms
self-registered
SpellzCode — Domain DNS, registration age and email authenticationhttps://agent-data-tools.revmesh2074.workers.dev/domain
x402
$0.0050
data/domain-intelligence
healthy
180ms
self-registered
SpellzCode — Domain trust verdict: age, DNS and email-auth flagshttps://agent-data-tools.revmesh2074.workers.dev/domain-report
x402
$0.01
tools/security
healthy
315ms
self-registered
SpellzCode — ENS name to address and address to ENS namehttps://agent-data-tools.revmesh2074.workers.dev/ens
x402
$0.01
crypto/onchain
healthy
189ms
self-registered
SpellzCode — ERC-20 token approval check on Basehttps://agent-data-tools.revmesh2074.workers.dev/base-allowance