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EVM Value Plus Fee Budget: EVM Value Plus Fee Budget sums transaction value and fee ceiling for a funding requirement from bounded caller-supplied values without an external provider. Call EVM Value Plus Fee Budget 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 Value Plus Fee Budget as versioned deterministic JSON…

Take the first N elements. Call when you cap agent payloads before paid calls. Returns items prefix 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.

Address geocoding API for agents: geocode one U.S., Puerto Rico, or U.S. Island Areas address for $0.001 USDC through the public Census Geocoder. Returns approximate coordinates with required Census attribution—no global maps, navigation, or address retention.

Batch Chunk Plan: Batch Chunk Plan plans ordered bounded chunks from item count and chunk size from bounded caller-supplied values without an external provider. Call Batch Chunk Plan 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 Batch Chunk Plan as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or S…

Validate 0x + 64 hex transaction hash shape. Call when preflight before receipt lookup. Returns valid boolean 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.

Check whether a string is a float. Call when you validate decimal form fields before parse. 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.

List top-level JSON keys. Call when agents must discover object shape without full schema inference. Returns top-level keys of a JSON object. $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.

Mask sensitive middle characters. Use before logging secrets, account numbers, or tokens that must stay partially hidden. Returns a masked string suitable for audit trails—never stores the original beyond the request. $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.

Seeded Percentage Rollout: Seeded Percentage Rollout evaluates stable inclusion in a percentage rollout from bounded caller-supplied values without an external provider. Call Seeded Percentage Rollout 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 Percentage Rollout as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base…

Compute confirmations remaining from head and inclusion block. Call when progress bars and readiness gates for deposit/finality logic. Returns confirmations observed vs 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.

Lite Sharpe = mean/stdev of a return sample (no rf, sample). Call when quick risk-adjusted rank of strategy return arrays. Returns sharpe-like ratio and n 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.

Book imbalance (bid_size-ask_size)/(bid_size+ask_size). Call when sizing or signal needs L1 size imbalance. Returns imbalance in [-1,1] 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.

JSON Depth Check: JSON Depth Check measures JSON nesting depth against a caller budget from bounded caller-supplied values without an external provider. Call JSON Depth 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 Depth Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. F…

Compare ETag validators including weak tags and If-None-Match lists — 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.

EVM Allowance Budget Check: EVM Allowance Budget Check checks caller-supplied allowance against a required token amount from bounded caller-supplied values without an external provider. Call EVM Allowance Budget 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 Allowance Budget Check as versioned deterministic…

Sentence-case text for agents. Use when normalizing noisy agent output into a single readable sentence. Returns the sentence-cased string ready to paste into chat, tickets, or logs. $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.

Seeded Jitter Ms: Seeded Jitter Ms adds reproducible bounded jitter to a base delay from bounded caller-supplied values without an external provider. Call Seeded Jitter Ms 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 Jitter Ms as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. First-party, stateless, mem…

Replace digits with # for safe previews. Call when you strip numeric PII from agent-held text before display. Returns digit-redacted text 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.

Compute Black-Scholes d1 and d2 from spot/strike/vol/time/rate. Call when you need BS inputs for Greeks without a market feed. Returns d1 and d2 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.

Cache Control Parse: Cache Control Parse parses Cache-Control directives into typed policy fields from bounded caller-supplied values without an external provider. Call Cache Control Parse 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 Cache Control Parse as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. First-party, stateless, mem…

Scale raw token units by decimals into human-readable amounts. Call when rendering balances or logs that store raw integer token units. Returns human amount plus raw and decimals 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 Delivery Hash Check: X402 Delivery Hash Check verifies delivered text against a caller-supplied sha-256 digest from bounded caller-supplied values without an external provider. Call X402 Delivery Hash 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 Delivery Hash Check as versioned determ…

Check if a YYYY-MM-DD is in a static US market holiday set. Call when scheduling around known US market holidays offline. Returns is_holiday and name if known 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.

Prime factorization. Use when agents need factorization for puzzles, crypto teaching, or ratio breakdowns (bounded n). Returns the factor list as structured JSON. $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.