api.delx.ai

• https://api.delx.ai/api/v1/x402/abs-n

  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. R…

  SolanaOnchain data

  $0.001/ request

  2026-10-02

• https://api.delx.ai/api/v1/x402/agent-result-citation-check

  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 accep…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/agent-result-error-shape-check

  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 payin…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/arr-uniq

  Deduplicate a list preserving order. Call when you unique agent keys without sorting. Returns unique items and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Resu…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-25

• https://api.delx.ai/api/v1/x402/authorization-scheme-identify

  Authorization Scheme Identify: identifies an Authorization scheme without exposing or validating credentials using only bounded caller-supplied values. Call when you need a bounded authorization scheme identify result b…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/batch-result-summary

  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…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/binary-fair-price

  Map a true probability into a binary contract fair price in [0,1]. Call when pricing yes/no markets from your probability model. Returns fair price in [0,1] as deterministic JSON for $0.001 USDC via x402 on Base. First-…

  SolanaMarket data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/bool-and

  Boolean AND of two coerced values. Call when you combine agent preflight gates. Returns AND result for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; …

  SolanaOther

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/bytes-format

  Human-readable byte sizes. Call when presenting file sizes, cache usage, or download progress to users. Returns a human string like 1.5 KB from a byte count. $0.001 USDC per successful call via x402 on Base or Solana—de…

  SolanaOther

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/caa-issue-hosts

  Extract issue/issuewild hosts from CAA record texts. Call when inventorying allowed CAs from CAA answers. Returns hosts list as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, li…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/case-camel

  Convert text to lowerCamelCase for JSON property naming. Call when you need this bounded result before handing data to a downstream tool. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Hon…

  SolanaCommerce

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/compound-return

  Compound a list of period returns into a total growth factor. Call when multi-period performance rollups from return series you already have. Returns compounded factor and total return as deterministic JSON for $0.001 U…

  SolanaOnchain data

  $0.001/ request

  2026-10-02

• https://api.delx.ai/api/v1/x402/cookie-domain-match

  Cookie Domain Match: evaluates host-only or Domain cookie matching for a request host using only bounded caller-supplied values. Call when you need a bounded cookie domain match result before accepting, caching, redirec…

  SolanaIdentity

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/cost-for-shares

  Cash cost to buy a target share count at price. Call when pre-trade cash check for prediction-market size targets. Returns total cost as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—n…

  SolanaMarket data

  $0.001/ request

  2026-09-07

• https://api.delx.ai/api/v1/x402/csv-delimiter-detect

  CSV Delimiter Detect: scores common delimiters from bounded CSV text using only bounded caller-supplied values. Call when you need a bounded csv delimiter detect result before an agent hands structured data or a batch p…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/csv-join-by-key

  CSV Join By Key: inner-joins two bounded CSV tables on one key column using only bounded caller-supplied values. Call when you need a bounded csv join by key result before an agent hands structured data or a batch plan …

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/digest-header-verify

  Digest Header Verify: verifies a sha-256 Digest value against caller-supplied text bytes using only bounded caller-supplied values. Call when you need a bounded digest header verify result before accepting, caching, red…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-25

• https://api.delx.ai/api/v1/x402/drawdown-pct

  Drawdown percent from peak to trough for risk reports. Call when measuring path risk on an equity or price series peak/trough pair. Returns drawdown percent as deterministic JSON for $0.001 USDC via x402 on Base. First-…

  SolanaSecurity

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/email-spf-alignment-check

  Email SPF Alignment Check: checks relaxed or strict SPF domain alignment using only bounded caller-supplied values. Call when you need a bounded email spf alignment check result before deciding relaxed or strict SPF dom…

  SolanaIdentity

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/eth-to-wei

  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 deterministic JSON for …

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-amount-min-check

  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, o…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-finality-depth-check

  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, rep…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-nonce-gap-check

  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 signing, submitting, repl…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-priority-fee-ratio

  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,…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-signature-v-classify

  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, rep…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-slippage-bounds-check

  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, su…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/evm-token-balance-budget

  EVM Token Balance Budget: checks caller-supplied raw token balance against transfer amount using only bounded caller-supplied values. Call when you need a bounded evm token balance budget result before signing, submitti…

  SolanaOnchain data

  $0.001/ request

  2026-09-10

• https://api.delx.ai/api/v1/x402/evm-transfer-recipient-check

  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,…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/expected-log-growth

  Approx expected log bankroll growth for a binary bet fraction. Call when comparing bet sizes by growth rate under true_prob (advisory). Returns expected log growth as deterministic JSON for $0.001 USDC via x402 on Base.…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/fraction-to-bps

  Convert fractional rates into basis points for trading UIs. Call when you need bps labels from internal 0–1 fee or edge fractions. Returns bps = fraction*10000 as deterministic JSON for $0.001 USDC via x402 on Base. Fir…

  SolanaMarket data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/frame-ancestors-check

  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, cac…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/geocode-us

  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 globa…

  SolanaOther

  $0.001/ request

  2026-10-04

• https://api.delx.ai/api/v1/x402/hex-prefix

  Normalize a hexadecimal string with optional prefix and even-length validation. Call when you need this bounded result before handing data to a downstream tool. Returns deterministic machine-readable JSON for $0.001 USD…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/is-blank

  Check whether a string is empty or contains only whitespace. Call when you need this bounded result before handing data to a downstream tool. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base.…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/is-prime

  Primality check. Call for teaching demos, ID heuristics, or lightweight number filters (bounded integers). Returns whether n is prime with a clear boolean field. $0.001 USDC per successful call via x402 on Base or Solan…

  SolanaOther

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/iso3166-country-lookup

  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 RP…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/json-boolean-coerce

  JSON Boolean Coerce: coerces explicit boolean tokens while reporting rejected values using only bounded caller-supplied values. Call when you need a bounded json boolean coerce result before an agent hands structured da…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/json-uuid-fields-check

  JSON UUID Fields Check: checks selected fields for canonical UUID text shape using only bounded caller-supplied values. Call when you need a bounded json uuid fields check result before an agent hands structured data or…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/link-header-parse

  Link Header Parse: parses bounded Link header targets and relation parameters using only bounded caller-supplied values. Call when you need a bounded link header parse result before accepting, caching, redirecting, or r…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/logit

  Logit transform log(p/(1−p)) for probability-space models. Call when featureizing probabilities for linear models offline. Returns logit value as deterministic JSON for $0.001 USDC via x402 on Base. First-party local ma…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/mime-from-ext

  Guess MIME type from file extension. Call when you set Content-Type hints for agent uploads. Returns mime, ext, known for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Res…

  SolanaOther

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/multi-outcome-kelly

  Proportional Kelly-like stakes across exclusive outcomes. Call when allocating bankroll across multi-outcome prediction markets. Returns stakes and fractions per outcome as deterministic JSON for $0.001 USDC via x402 on…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/multi-outcome-normalize

  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. Fi…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/ob-mid-from-levels

  Compute mid price from bid/ask top-of-book levels. Call when you have L1 bid and ask and need a mid for marks. Returns mid, spread_abs, and spread_bps as deterministic JSON for $0.001 USDC via x402 on Base. First-party …

  SolanaMarket data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/open-entities-search

  Search bounded Wikidata entity metadata for $0.001 USDC. Returns stable IDs, labels, descriptions and source links for public places, companies and concepts—not geocoding, navigation, contact data, personal profiling or…

  SolanaSearch

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/ordinal

  Format an integer as an English ordinal (1st, 2nd, 3rd…). Call when you need human-facing ranks or step labels for agent UIs. Returns ordinal string and n for $0.001 USDC via x402 on Base. No network, no keys, no retent…

  SolanaOther

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/overround

  Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party loc…

  SolanaOnchain data

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/path-ext

  Extract file extension from a path or URL path segment. Call when you need this bounded result before handing data to a downstream tool. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Hone…

  SolanaOnchain data

  $0.001/ request

  2026-09-25

• https://api.delx.ai/api/v1/x402/pluralize-lite

  Lightweight English pluralization helper. Call when you label counts in agent messages without i18n frameworks. Returns pluralized word with count for $0.001 USDC via x402 on Base. No network, no keys, no retention; fir…

  SolanaOther

  $0.001/ request

  2026-09-19

• https://api.delx.ai/api/v1/x402/random-int

  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, custo…

  SolanaDeveloper tools

  $0.001/ request

  2026-09-25

By chain

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.