Browse indexable blockchain and crypto x402 offerings, including provider, method, and service details.
8146 indexable offerings in this category.
Base Block Time Estimate: Base Block Time Estimate estimates block count from a caller-supplied duration and block-time assumption from bounded caller-supplied values without an external provider. Ca…
EVM Infinite Approval Flag: EVM Infinite Approval Flag flags an approval at or near a caller-supplied maximum uint threshold from bounded caller-supplied values without an external provider. Call EVM…
Scale ether amounts into wei integer strings for transfers and tx value. Call when preparing value fields, allowances, or transfers denominated in ETH. Returns wei integer string and eth input as det…
X402 Registry Route Check: X402 Registry Route Check checks one runtime registry entry for tool, path, method, and upstream from bounded caller-supplied values without an external provider. Call X402…
Gate a workflow on an explicit boolean check map before side effects — call when a boolean checklist must pass before side effects. Use before side effects when composing multi-step agent jobs—the sa…
EVM Calldata Word Count: EVM Calldata Word Count counts complete and partial 32-byte calldata words after the selector from bounded caller-supplied values without an external provider. Call EVM Calld…
EVM Access List Shape Check: EVM Access List Shape Check checks bounded EIP-2930 access-list address and storage-key shapes from bounded caller-supplied values without an external provider. Call EVM …
Break-even exit price including a fee rate on the round-turn. Call when setting targets that actually clear fees. Returns break-even price as deterministic JSON for $0.001 USDC via x402 on Base. Firs…
Bitcoin Up or Down 15-Minute Probability estimates p_up and p_down for quarter-hour windows using a broader caller-supplied trend sample. Send 8-240 ordered caller-supplied BTC price observations, th…
EVM Nonce Replace Check: EVM Nonce Replace Check checks whether a proposed nonce targets a caller-supplied pending nonce from bounded caller-supplied values without an external provider. Call EVM Non…
EVM Nonce Gap Check: calculates the gap between pending and proposed transaction nonces using only bounded caller-supplied values. Call when you need a bounded evm nonce gap check result before signi…
Check whether an address already matches its EIP-55 checksum form — call when verifying an address already matches EIP-55 form. Use for chain input hygiene without live RPC—adjacent to OneSource-clas…
Crypto news API for agents: search recent attributed crypto headlines (Bitcoin, Ethereum, DeFi, Web3) through the GDELT Project for $0.001 USDC. Returns publisher links and bounded headline metadata …
Volume-weighted average entry across fill price/size pairs. Call when averaging multiple fills into one book cost basis. Returns average entry and total size as deterministic JSON for $0.001 USDC via…
EVM Calldata Shape Check: EVM Calldata Shape Check checks 0x-prefixed calldata for even-length hexadecimal bytes from bounded caller-supplied values without an external provider. Call EVM Calldata Sh…
EVM Signature V Classify: classifies common signature recovery and EIP-155 v values using only bounded caller-supplied values. Call when you need a bounded evm signature v classify result before sign…
Remaining unlock amount for linear vesting with optional cliff. Call when token unlock schedules for runway/treasury math. Returns vested, remaining, fraction_vested as deterministic JSON for $0.001 …
Seeded Round Robin Start: Seeded Round Robin Start chooses a reproducible starting index for round-robin rotation from bounded caller-supplied values without an external provider. Call Seeded Round R…
EVM Receipt Status Check: EVM Receipt Status Check normalizes receipt status values into success or failure from bounded caller-supplied values without an external provider. Call EVM Receipt Status C…
Evaluate caller-supplied x402 payment requirements before a wallet signs them. Use after receiving HTTP 402 to enforce a maximum USDC amount, allowed networks, exact scheme, recipient presence, and a…
EVM Hex Data Normalize: EVM Hex Data Normalize normalizes even-length EVM hex data while preserving byte boundaries from bounded caller-supplied values without an external provider. Call EVM Hex Data…
Convert USDC human amounts into 6-decimal raw units used on-chain. Call when quoting or building USDC transfers/payments at 6 decimals. Returns raw units string with decimals=6 as deterministic JSON …
Classic CPMM impermanent loss from price ratio. Call when LP risk before providing liquidity. Returns il_fraction and il_pct as deterministic JSON for $0.001 USDC via x402 on Base. First-party local …
Convert wei integer strings into gwei for readable gas quotes. Call when you need human-readable gas price from a wei field without an RPC call. Returns gwei float plus original wei string as determi…