x402 resources on Base
Resources whose first Base-preferring accepts entry names Base (eip155:8453). 23,920 resources: 4,364 answer a valid 402 (18.2%), 2,387 are dead (10.0%). Sorted by payers on record, then live verdict, then catalog freshness.
Page 44 of 50: previous next · 18,920 more are only in bazaar.json and the sitemaps
| Resource | Host | Price | Network | Verdict | Payers | Catalogs | Description |
|---|---|---|---|---|---|---|---|
| POST /api/v1/x402/hex-color-luminance | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Relative luminance of a #RRGGBB color. Call when contrast checks without image decode. Ret |
| POST /api/v1/x402/handoff-size-estimate | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Estimate bytes/tokens for a handoff capsule string. Call when Protocol-adjacent sizing bef |
| POST /api/v1/x402/hex-canonicalize | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Canonicalize and validate even-length hex strings with optional 0x prefix — call when norm |
| POST /api/v1/x402/header-map-normalize | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Lowercase HTTP header keys and drop hop-by-hop headers — first-party local utility for age |
| POST /api/v1/x402/hash | api.delx.ai | $0.001 | base | unprobed | 18 | payai | SHA-256 hash API for agents: hash text with SHA-256, SHA-1, or MD5 for $0.001 USDC and ret |
| POST /api/v1/x402/half-kelly | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Half-Kelly fraction for conservative bankroll growth. Call when agents that want Kelly gro |
| POST /api/v1/x402/gross-margin | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Calculate gross profit, gross margin, and profitability. Use it as a bounded preflight or |
| POST /api/v1/x402/graphql-operation-index | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Index named GraphQL queries, mutations, and subscriptions. Use it as a bounded preflight o |
| POST /api/v1/x402/gwei-to-wei | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Convert gas prices from gwei into wei integer strings for EVM transactions. Call when you |
| POST /api/v1/x402/gas-cost-usd | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Estimate gas cost in USD given used gas, price, and ETH/USD. Call when operator reports th |
| POST /api/v1/x402/gcd | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Greatest common divisor. Handy for ratio simplification, scheduling grids, or math agents |
| POST /api/v1/x402/gas-cost-wei | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Compute gas_used × gas_price as total gas cost in wei. Call when estimating tx cost from k |
| POST /api/v1/x402/gdelt-query-normalize | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Normalize a news query string for GDELT-style search. Call when cleaning agent queries bef |
| POST /api/v1/x402/fx-revalue-amount | api.delx.ai | $0.002 | base | unprobed | 18 | payai | Revalue amount by two rates (historical vs current). Call when ECB-style revaluation when |
| POST /api/v1/x402/gas-cost-eth | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Compute total gas cost in ether from used gas and price wei. Call when budgeting ETH spend |
| POST /api/v1/x402/fx-convert-amount | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Convert an amount with a caller-supplied FX rate (no live feed) — first-party local utilit |
| POST /api/v1/x402/funnel-conversion | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Calculate step and overall conversion from ordered funnel stages. Use it as a bounded pref |
| POST /api/v1/x402/funding-payment | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Funding payment ≈ notional × funding_rate for a period. Call when estimating perp funding |
| POST /api/v1/x402/funding-annualize | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Annualize a period funding rate (e.g. 8h → APR). Call when comparing funding across venues |
| POST /api/v1/x402/forms-extract | api.delx.ai | $0.01 | base | unprobed | 18 | payai | Extract forms, methods, actions, and fields for browser automation and workflow planning f |
| POST /api/v1/x402/forwarded-header-parse | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Forwarded Header Parse: Forwarded Header Parse parses bounded standardized Forwarded heade |
| POST /api/v1/x402/fleet-status-onepager-stub | api.delx.ai | $0.01 | base | unprobed | 18 | payai | Build a compact fleet status markdown from agent rows. Call when operator agents need a pa |
| POST /api/v1/x402/floor-n | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Floor a number to integer. Call when you need whole units from continuous values. Returns |
| POST /api/v1/x402/fingerprint-lite | api.delx.ai | $0.001 | base | unprobed | 18 | payai | 16-hex fingerprint of text via SHA-256 prefix. Call when you need short cache keys for age |
| POST /api/v1/x402/field-coverage | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Measure per-field presence across bounded JSON records. Use it as a bounded preflight or a |
| POST /api/v1/x402/flatten1 | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Flatten one level of nested lists. Call when you normalize agent-held nested arrays before |
| POST /api/v1/x402/fibonacci | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Nth Fibonacci (n≤78). Use for sequences, demos, or test fixtures without shipping a math p |
| POST /api/v1/x402/feed-discover | api.delx.ai | $0.01 | base | unprobed | 18 | payai | Find RSS, Atom, and JSON feeds so agents can subscribe instead of scrape for $0.01 USDC. C |
| POST /api/v1/x402/factorial | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Factorial (n≤20). Call for combinatorics demos and small counting problems with an explici |
| POST /api/v1/x402/fee-quote | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Fee amount = notional × fee_rate for maker/taker style quotes. Call when pre-trade fee dra |
| POST /api/v1/x402/extract-urls | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Extract HTTP/HTTPS URLs from text for $0.001 USDC. Call when you need this bounded result |
| POST /api/v1/x402/extract-ints | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Extract signed integers from free text. Call when you parse IDs, ports, or quantities out |
| POST /api/v1/x402/extract-numbers | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Extract numbers from free text. Call when scraping prices, IDs, quantities, or scores out |
| POST /api/v1/x402/extract-emails-lite | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Extract email-shaped tokens from free text (shape only). Call when you need candidate emai |
| POST /api/v1/x402/ext-from-mime | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Guess extension from MIME type. Call when you name agent-generated files from content-type |
| POST /api/v1/x402/experiment-lift | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Calculate descriptive conversion lift for control and treatment. Use it as a bounded prefl |
| POST /api/v1/x402/expires-header-validate | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Expires Header Validate: Expires Header Validate compares Date and Expires timestamps for |
| POST /api/v1/x402/expectancy | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Expectancy per trade from win rate, avg win, and avg loss. Call when deciding if a system |
| POST /api/v1/x402/exec-quality-vs-vwap | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Compare average fill to VWAP benchmark (bps). Call when post-trade quality vs a caller-sup |
| POST /api/v1/x402/evm-value-plus-fee-budget | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Value Plus Fee Budget: EVM Value Plus Fee Budget sums transaction value and fee ceilin |
| POST /api/v1/x402/exec-quality-vs-twap | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Compare average fill to TWAP benchmark (bps). Call when post-trade quality vs a caller-sup |
| POST /api/v1/x402/evm-tx-envelope-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Tx Envelope Check: EVM Tx Envelope Check checks required envelope fields for a declare |
| POST /api/v1/x402/evm-tx-type-classify | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Tx Type Classify: EVM Tx Type Classify classifies legacy, access-list, dynamic-fee, an |
| POST /api/v1/x402/evm-replacement-fee-bump | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Replacement Fee Bump: EVM Replacement Fee Bump checks proposed fee caps against a requ |
| POST /api/v1/x402/evm-signature-rs-shape-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Signature Rs Shape Check: EVM Signature Rs Shape Check checks r and s values as 32-byt |
| POST /api/v1/x402/evm-receipt-status-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Receipt Status Check: EVM Receipt Status Check normalizes receipt status values into s |
| POST /api/v1/x402/evm-receipt-gas-variance | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Receipt Gas Variance: EVM Receipt Gas Variance compares gas used with a preflight esti |
| POST /api/v1/x402/evm-nonce-replace-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Nonce Replace Check: EVM Nonce Replace Check checks whether a proposed nonce targets a |
| POST /api/v1/x402/evm-next-base-fee-bound | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Next Base Fee Bound: EVM Next Base Fee Bound calculates upper and lower next-block bas |
| POST /api/v1/x402/evm-multisend-recipient-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Multisend Recipient Check: EVM Multisend Recipient Check checks duplicate, zero, and u |
| POST /api/v1/x402/evm-log-topic-count-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Log Topic Count Check: EVM Log Topic Count Check checks log topic count against an exp |
| POST /api/v1/x402/evm-infinite-approval-flag | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Infinite Approval Flag: EVM Infinite Approval Flag flags an approval at or near a call |
| POST /api/v1/x402/evm-legacy-fee-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Legacy Fee Check: EVM Legacy Fee Check checks gasPrice and gasLimit values for a legac |
| POST /api/v1/x402/evm-hex-quantity-normalize | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Hex Quantity Normalize: EVM Hex Quantity Normalize normalizes an EVM hex quantity with |
| POST /api/v1/x402/evm-gas-limit-headroom | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Gas Limit Headroom: EVM Gas Limit Headroom calculates gas-limit headroom above an esti |
| POST /api/v1/x402/evm-hex-data-normalize | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Hex Data Normalize: EVM Hex Data Normalize normalizes even-length EVM hex data while p |
| POST /api/v1/x402/evm-gas-cost-ceiling | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Gas Cost Ceiling: EVM Gas Cost Ceiling calculates a worst-case native fee from gas lim |
| POST /api/v1/x402/evm-fee-cap-order-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Fee Cap Order Check: EVM Fee Cap Order Check checks that the priority fee cap does not |
| POST /api/v1/x402/evm-event-log-shape-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Event Log Shape Check: EVM Event Log Shape Check checks address, topics, and data shap |
| POST /api/v1/x402/evm-eip1559-fee-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Eip1559 Fee Check: EVM Eip1559 Fee Check checks dynamic-fee caps and calculates the wo |
| POST /api/v1/x402/evm-deadline-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Deadline Check: EVM Deadline Check checks a transaction deadline against current time |
| POST /api/v1/x402/evm-chain-id-hex-normalize | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Chain Id Hex Normalize: EVM Chain Id Hex Normalize converts decimal or hexadecimal cha |
| POST /api/v1/x402/evm-contract-creation-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Contract Creation Check: EVM Contract Creation Check classifies an empty or absent to- |
| POST /api/v1/x402/evm-chain-match-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Chain Match Check: EVM Chain Match Check compares transaction and expected chain ident |
| POST /api/v1/x402/evm-calldata-shape-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Calldata Shape Check: EVM Calldata Shape Check checks 0x-prefixed calldata for even-le |
| POST /api/v1/x402/evm-calldata-size-bytes | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Calldata Size Bytes: EVM Calldata Size Bytes calculates calldata byte length from norm |
| POST /api/v1/x402/evm-calldata-word-count | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Calldata Word Count: EVM Calldata Word Count counts complete and partial 32-byte calld |
| POST /api/v1/x402/evm-calldata-selector-extract | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Calldata Selector Extract: EVM Calldata Selector Extract extracts the first four calld |
| POST /api/v1/x402/evm-blob-fee-budget | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Blob Fee Budget: EVM Blob Fee Budget calculates a worst-case blob fee from blob gas an |
| POST /api/v1/x402/evm-batch-value-sum | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Batch Value Sum: EVM Batch Value Sum sums bounded raw transaction values for a batch f |
| POST /api/v1/x402/evm-blob-count-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Blob Count Check: EVM Blob Count Check checks caller-supplied blob count against a tra |
| POST /api/v1/x402/evm-block-age-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Block Age Check: EVM Block Age Check checks caller-supplied block timestamp age agains |
| POST /api/v1/x402/evm-batch-duplicate-nonce-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Batch Duplicate Nonce Check: EVM Batch Duplicate Nonce Check finds duplicate nonces in |
| POST /api/v1/x402/evm-approve-amount-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Approve Amount Check: EVM Approve Amount Check compares a proposed approval with an ex |
| POST /api/v1/x402/evm-base-fee-growth-ceiling | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Base Fee Growth Ceiling: EVM Base Fee Growth Ceiling compounds a caller growth fractio |
| POST /api/v1/x402/evm-batch-gas-sum | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Batch Gas Sum: EVM Batch Gas Sum sums gas limits and fee ceilings across a transaction |
| POST /api/v1/x402/evm-address-zero-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Address Zero Check: EVM Address Zero Check detects the all-zero EVM address after shap |
| POST /api/v1/x402/evm-address-list-dedupe | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Address List Dedupe: EVM Address List Dedupe deduplicates EVM address strings case-ins |
| POST /api/v1/x402/evm-allowance-budget-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Allowance Budget Check: EVM Allowance Budget Check checks caller-supplied allowance ag |
| POST /api/v1/x402/etag-match | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Compare ETag validators including weak tags and If-None-Match lists — first-party local ut |
| POST /api/v1/x402/evm-access-list-shape-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | EVM Access List Shape Check: EVM Access List Shape Check checks bounded EIP-2930 access-li |
| POST /api/v1/x402/etag-parse | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Etag Parse: Etag Parse separates weak and strong entity-tag semantics from an ETag value f |
| POST /api/v1/x402/error-budget-plan | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Convert an SLO percentage and request window into allowed failure budget — call when conve |
| POST /api/v1/x402/error-budget | api.delx.ai | $0.002 | base | unprobed | 18 | payai | Calculate remaining failure budget and burn from traffic, failures, and an SLO target. Use |
| POST /api/v1/x402/env-key-validate | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Validate environment variable key shape A-Z0-9 underscore — first-party local utility for |
| POST /api/v1/x402/etag-comparison-mode | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Etag Comparison Mode: Etag Comparison Mode evaluates strong or weak comparison between two |
| POST /api/v1/x402/ensure-suffix | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Ensure a string ends with a required suffix without duplication — first-party local utilit |
| POST /api/v1/x402/ends-with | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Check whether text ends with a suffix. Call when you validate file extensions or content-t |
| POST /api/v1/x402/ensure-prefix | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Ensure a string starts with a required prefix without duplication — first-party local util |
| POST /api/v1/x402/ensure-trailing-slash | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Ensure a path ends with /. Call when you normalize directory-style URLs for agents. Return |
| POST /api/v1/x402/email-syntax-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Validate basic email syntax and split local/domain. Call when preflight before MX/DNS step |
| POST /api/v1/x402/email-mx-readiness-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Email MX Readiness Check: Email MX Readiness Check checks caller-supplied MX records for u |
| POST /api/v1/x402/email-validate | api.delx.ai | $0.01 | base | unprobed | 18 | payai | Email validation API for agents at $0.01 USDC. Call when you need syntax and domain delive |
| POST /api/v1/x402/email-dmarc-alignment-check | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Email DMARC Alignment Check: Email DMARC Alignment Check combines caller-supplied SPF and |
| POST /api/v1/x402/eip55-check | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Check whether an address already matches its EIP-55 checksum form — call when verifying an |
| POST /api/v1/x402/duration-parse | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Parse human durations like 1h30m for $0.001 USDC. Call when you need this bounded result w |
| POST /api/v1/x402/email-domain | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Domain from an email. Call when routing tickets, grouping users, or validating corporate d |
| POST /api/v1/x402/domain-label | api.delx.ai | $0.001 | base | unprobed | 18 | payai | Split host into DNS labels and apex guess. Call when you reason about registrable domains |
| POST /api/v1/x402/duplicate-record-audit | api.delx.ai | $0.003 | base | unprobed | 18 | payai | Find duplicate record groups using canonical fingerprints without returning record values. |
| POST /api/v1/x402/domain-trust-report | api.delx.ai | $0.01 | base | unprobed | 18 | payai | One-call domain trust report and security audit with TLS, headers, security.txt, RDAP, DNS |
Page 44 of 50: previous next · 18,920 more are only in bazaar.json and the sitemaps