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 — API health check pack: uptime, latency, headers, x402https://agent-data-tools.revmesh2074.workers.dev/pack/api-health?url=https%3A%2F%2Fpetstore3.swagger.io%2Fapi%2Fv3%2Fpet%2FfindByStatus%3Fstatus%3Davailable
x402
$0.03
developer-tools/utilities
healthy
158ms
self-registered
SpellzCode — API health check pack: uptime, latency, headers, x402 (MPP)https://agent-data-tools.revmesh2074.workers.dev/pack/api-health?url=https%3A%2F%2Fpetstore3.swagger.io%2Fapi%2Fv3%2Fpet%2FfindByStatus%3Fstatus%3Davailable
MPP
$0.03
developer-tools/utilities
healthy
158ms
self-registered
SpellzCode — Add time to a datehttps://agent-data-tools.revmesh2074.workers.dev/date/add?date=2026-01-31
x402
$0.01
developer-tools/utilities
healthy
184ms
self-registered
SpellzCode — Address checksum (EIP-55): validate and format an EVM addresshttps://agent-data-tools.revmesh2074.workers.dev/evm/checksum?address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045
x402
$0.01
developer-tools/utilities
healthy
385ms
self-registered
SpellzCode — Address checksum (EIP-55): validate and format an EVM address (MPP)https://agent-data-tools.revmesh2074.workers.dev/evm/checksum?address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045
MPP
$0.01
developer-tools/utilities
healthy
385ms
self-registered
SpellzCode — Age calculator: exact age from a date of birth and the next birthdayhttps://agent-data-tools.revmesh2074.workers.dev/calc/age?birthdate=1990-05-17
x402
$0.01
developer-tools/utilities
healthy
389ms
self-registered
SpellzCode — Age calculator: exact age from a date of birth and the next birthday (MPP)https://agent-data-tools.revmesh2074.workers.dev/calc/age?birthdate=1990-05-17
SpellzCode — Arbitrum One ERC-20 balancehttps://agent-data-tools.revmesh2074.workers.dev/arb/token-balance?token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
x402
$0.01
blockchain/onchain-data
healthy
175ms
self-registered
SpellzCode — Arbitrum One ERC-20 token infohttps://agent-data-tools.revmesh2074.workers.dev/arb/token-info?token=0xaf88d065e77c8cC2239327C5EDb3A432268e5831
x402
$0.01
blockchain/onchain-data
healthy
290ms
self-registered
SpellzCode — Arbitrum One account noncehttps://agent-data-tools.revmesh2074.workers.dev/arb/nonce?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
x402
$0.01
blockchain/onchain-data
healthy
227ms
self-registered
SpellzCode — Arbitrum One blockhttps://agent-data-tools.revmesh2074.workers.dev/arb/block
x402
$0.0030
blockchain/onchain-data
healthy
288ms
self-registered
SpellzCode — Arbitrum One contract checkhttps://agent-data-tools.revmesh2074.workers.dev/arb/is-contract?address=0xaf88d065e77c8cC2239327C5EDb3A432268e5831
x402
$0.01
blockchain/onchain-data
healthy
203ms
self-registered
SpellzCode — Arbitrum One gas pricehttps://agent-data-tools.revmesh2074.workers.dev/arb/gas
x402
$0.0030
blockchain/onchain-data
healthy
271ms
self-registered
SpellzCode — Arbitrum One native balancehttps://agent-data-tools.revmesh2074.workers.dev/arb/balance?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
x402
$0.01
blockchain/onchain-data
healthy
260ms
self-registered
SpellzCode — Arbitrum One recent event logshttps://agent-data-tools.revmesh2074.workers.dev/arb/logs?address=0xaf88d065e77c8cC2239327C5EDb3A432268e5831
x402
$0.01
blockchain/onchain-data
healthy
262ms
self-registered
SpellzCode — Arbitrum One transactionhttps://agent-data-tools.revmesh2074.workers.dev/arb/tx?hash=0xf03682db039f7b1b72ddf4d17572738f142cf63ecb36c90afa570430ea9774c4
x402
$0.01
blockchain/onchain-data
healthy
231ms
self-registered
SpellzCode — Arbitrum One transaction receipthttps://agent-data-tools.revmesh2074.workers.dev/arb/receipt?hash=0xf03682db039f7b1b72ddf4d17572738f142cf63ecb36c90afa570430ea9774c4
x402
$0.01
blockchain/onchain-data
healthy
348ms
self-registered
SpellzCode — Arbitrum One wallet token transfershttps://agent-data-tools.revmesh2074.workers.dev/arb/token-transfers?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045