Onchain & crypto

ISBN-10/ISBN-13 checksum validation 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.

JSON validation API for agents: validate, normalize, and pretty-print a bounded JSON payload for $0.001 USDC with structured errors—no API key or upstream. 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.

Luhn checksum validation for digit strings 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.

Levenshtein edit distance and similarity 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.

Compute absolute and percent change 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.

Strip markdown to plain 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.

Pick random items without replacement 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.

Estimate reading time from word count 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.

Compare two semantic versions 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.

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.

Truncate text with ellipsis 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.

X402 Settlement Network Check: compares settlement chain with the accepted challenge network using only bounded caller-supplied values. Call when you need a bounded x402 settlement network check result 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 Settlement Network Check as versioned determinist…

Transfer Encoding Check: checks transfer-coding order and whether chunked appears only last using only bounded caller-supplied values. Call when you need a bounded transfer encoding check result 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 Transfer Encoding Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. First-party, stat…

Normalize multi-outcome prices into a probability simplex. Call when turning raw multi-outcome quotes into probs that sum to 1. Returns normalized probs and sum 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.

Lookup country name from a static ISO3166-1 alpha-2 table subset. Call when labeling country codes offline. Returns name and code 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.

Frame Ancestors Check: checks whether a CSP frame-ancestors directive contains a required source using only bounded caller-supplied values. Call when you need a bounded frame ancestors check result 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 Frame Ancestors Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. First-party, sta…

EVM Transfer Recipient Check: compares an encoded recipient address with the intended recipient using only bounded caller-supplied values. Call when you need a bounded evm transfer recipient check result 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 Transfer Recipient Check as versioned deterministic JSON. Price:…

EVM Slippage Bounds Check: checks expected and minimum output against a maximum slippage policy using only bounded caller-supplied values. Call when you need a bounded evm slippage bounds check result 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 Slippage Bounds Check as versioned deterministic JSON. Price: $0.00…

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 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 Signature V Classify as versioned deterministic JSON. Price: $0.001 USDC via x40…

EVM Priority Fee Ratio: calculates the priority-fee share of the total fee cap using only bounded caller-supplied values. Call when you need a bounded evm priority fee ratio result 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 Priority Fee Ratio as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base…

EVM Finality Depth Check: checks confirmation count against a caller-required depth using only bounded caller-supplied values. Call when you need a bounded evm finality depth check result 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 Finality Depth Check as versioned deterministic JSON. Price: $0.001 USDC via x40…

EVM Amount Min Check: checks an actual raw amount against a minimum raw amount using only bounded caller-supplied values. Call when you need a bounded evm amount min check result 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 Amount Min Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or…

Batch Result Summary: summarizes success, failure, pending, and unknown batch statuses using only bounded caller-supplied values. Call when you need a bounded batch result summary 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 Batch Result Summary as versioned deterministic JSON. Price: $0.001 USDC via x402 on B…

Agent Result Error Shape Check: checks an agent error object for code, message, and retryability using only bounded caller-supplied values. Call when you need a bounded agent result error shape check result 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 Agent Result Error Shape Check as versioned deter…

Agent Result Citation Check: checks bounded citation objects for URL and title fields using only bounded caller-supplied values. Call when you need a bounded agent result citation check result 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 Agent Result Citation Check as versioned deterministic JSON. Pr…

Turn an OpenAPI document into a compact operation index for planning and tool selection. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates production reliability. Returns bounded machine-readable JSON for $0.002 USDC via x402 on Base or Solana. Execution is deterministic, first-party, local-only, stateless, and does not call an upstream provider; structured validation failures are not billed.

Compare declared retention with a maximum policy window. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base or Solana. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible for authorization and pro…

Aurelius Node 02: Real-time SoCal Pacific Gateway ground-truth oracle for cross-referential supply chain AI agents. Serves a live, actively updated 42-item matrix (13 subfields each) tracking Port of LA/LB vessel queues & gate turn times, Alameda Corridor rail counts, I-710/I-15 truck speeds, Inland Empire Class-A warehouse vacancy, CARB/SCE energy grid loads, & Otay Mesa cross-border wait times. Instant $0.05 USDC settlement via Base x402 V2 returning machine-readable JSON.

Access to api/v2/transactions. List blockchain transactions with filtering options for status, type, and method

Full trust report for an x402 endpoint: score breakdown, current quote, wallet/price events, and paid delivery checks. For teams: per-agent spend limits, signed receipts, and an audit trail at lumierepaycheck.org/subscribe.

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