All services

Weekend check for a date. Call when routing work, quiet hours, or business-day logic in agents. Returns whether the date falls on Saturday or Sunday. $0.001 USDC per successful call via x402 on Base or Solana—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.

Generate a secure random integer in a caller-supplied range for $0.001 USDC. Call when you need a CSPRNG draw for ids, jitter, or sampling without installing a crypto library. First-party local only—not a lottery, custody, or production RNG SLA. No API key, no subscription.

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 Shape Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Calldata Shape Check as versioned deterministic JSON. Price…

Convert radians to degrees. Call when you display geometry results in degrees. Returns degrees and radians for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Log loss (cross-entropy) for a probability vs binary outcome. Call when training-style forecast quality when sharp mistakes matter. Returns log loss value as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Fees needed to offset IL at a price ratio. Call when checking if fee APR can cover expected IL. Returns fee_fraction_needed as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

X402 Resource Match: X402 Resource Match compares challenge resource URL with the intended paid resource from bounded caller-supplied values without an external provider. Call X402 Resource Match before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Resource Match as versioned deterministic JSON. Price:…

Detect RFC1918 private IPv4 addresses. Call when agents classifying IPs before whois/network calls. Returns is_private as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

Turn mixed human or machine text into production-ready snake_case, kebab-case, camelCase, PascalCase, CONSTANT_CASE, title, lower, or upper text for $0.001 USDC. The deterministic first-party transform runs locally, accepts up to 4,000 characters, returns structured JSON, uses no upstream API, and retains no input.

JSON Timestamp Fields Check: JSON Timestamp Fields Check checks selected fields as integer epoch seconds within bounds from bounded caller-supplied values without an external provider. Call JSON Timestamp Fields Check before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Timestamp Fields Check as versioned deterministic…

Validate http(s) URL shape. Call when you preflight agent-held URLs before fetch/extract. Returns valid boolean for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Content Type Match: Content Type Match checks a concrete Content-Type against an expected media range from bounded caller-supplied values without an external provider. Call Content Type Match before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Content Type Match as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. First-party, stateless, m…

JSON Required Fields Check: JSON Required Fields Check finds absent or null required top-level fields from bounded caller-supplied values without an external provider. Call JSON Required Fields Check before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Required Fields Check as versioned deterministic JSON. Price: $0.001…

Convert basis points into percent for operator-facing copy. Call when showing fee or slippage bps as percent strings. Returns pct = bps/100 as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

EVM Receipt Gas Variance: EVM Receipt Gas Variance compares gas used with a preflight estimate and reports variance from bounded caller-supplied values without an external provider. Call EVM Receipt Gas Variance before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Receipt Gas Variance as versioned deterministic JSON. Pr…

CSV Duplicate Rows: finds duplicate normalized rows in bounded CSV text using only bounded caller-supplied values. Call when you need a bounded csv duplicate rows result before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for CSV Duplicate Rows as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. Firs…

Flatten one level of nested lists. Call when you normalize agent-held nested arrays before mapping. Returns flattened items and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Absolute value of a number. Call when you need magnitude from signed deltas or balances. Returns absolute numeric value for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

X402 Challenge Shape Check: X402 Challenge Shape Check checks required top-level fields in a caller-supplied payment challenge from bounded caller-supplied values without an external provider. Call X402 Challenge Shape Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Challenge Shape Check as v…

Convert snake_case database, Python, or API field names into lowerCamelCase keys for $0.001 USDC, so agents can produce JavaScript-ready payloads without writing a fragile adapter. The deterministic first-party transform handles one bounded string locally, returns structured JSON, calls no upstream service, and retains no input.

Trim ends and collapse internal whitespace runs to single spaces — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls.

Seeded Random Bytes Hex: Seeded Random Bytes Hex returns reproducible non-cryptographic bytes encoded as hex from bounded caller-supplied values without an external provider. Call Seeded Random Bytes Hex when an agent needs a reproducible decision that another run can independently replay. Returns the deterministic selection plus seed provenance, population bounds, and the operation-specific outcome for Seeded Random Bytes Hex as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base…

Luhn check for digit strings (cards/IDs). Call when you reject obviously invalid card-shaped numbers before payment UI. Returns valid boolean and digit count for $0.001 USDC via x402 on Base. Checksum only—not issuer, funds, or PAN storage. No network, no keys, no retention. Results are advisory; the caller owns budgets, auth, and production controls.

Sort lines of text for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.