Every agent-payable API.

Seeded UUID: Seeded UUID derives a reproducible UUID-shaped identifier from seed and namespace text from bounded caller-supplied values without an external provider. Call Seeded UUID 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 UUID as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-…

Seeded Weighted Choice: Seeded Weighted Choice selects one item using non-negative caller weights from bounded caller-supplied values without an external provider. Call Seeded Weighted Choice 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 Weighted Choice as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party…

Seeded Weighted Partition: Seeded Weighted Partition assigns items to partitions using reproducible capacity weights from bounded caller-supplied values without an external provider. Call Seeded Weighted Partition 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 Weighted Partition as versioned deterministic JSON. Price: $0.001 USDC via…

Seeded Weighted Sample: Seeded Weighted Sample samples unique items using caller weights without replacement from bounded caller-supplied values without an external provider. Call Seeded Weighted Sample 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 Weighted Sample as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base.…

Seeded Window Pick: Seeded Window Pick selects a reproducible contiguous window from caller items from bounded caller-supplied values without an external provider. Call Seeded Window Pick 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 Window Pick as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, statel…

Seeded Winners Without Replacement: Seeded Winners Without Replacement draws an ordered reproducible winner list without replacement from bounded caller-supplied values without an external provider. Call Seeded Winners Without Replacement 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 Winners Without Replacement as versioned determini…

Select a reproducible sample without replacement from a bounded caller-supplied list. Use when multiple agents or retries must reach the same selection from the same seed. Returns sampled values, original indices, and a seed hash for 0.001 USDC via x402 on Base; local-only, stateless, and no input retention.

Self-employed mortgage affordability: 2-year income averaging with add-backs, the declining-income rule, front/back DTI limits, PMI-aware max-price solve.

Self-employment (SE) tax on Schedule C net profit — Social Security to the 2026 $184,500 wage base, Medicare, Additional Medicare, and the deductible half.

Leaderboard of x402 sellers by observed USDC inflow, with distinct payers, an HHI concentration measure and wash-risk flags. Sellers below the observation floor are returned unrated, not accused. The payer-graph discount applies only where wallet scan coverage supports it. HHI measures concentration, not common control.

Get an Amazon seller profile by seller id or seller URL: seller name, star rating, business name and address, and recent buyer feedback with dates and star ratings. Returns clean structured JSON in a single synchronous call. For competitor and seller research, reputation and dispute checks, supplier vetting and Buy Box rival analysis. 亚马逊卖家画像与竞品口碑核查。 Accepts payment on Base or Solana — either network works.

Parse a semantic version, compare two versions, test a version against a range (^, ~, >=, <, exact), and compute the next major/minor/patch bump.

Send an email message from an inbox. At least one recipient (to, cc, or bcc) is required. Returns the message_id and thread_id. Replace {inbox_id} directly in the path with the full inbox email (e.g., /v0/inboxes/myagent@agentmail.to/messages/send).

Send an email message from an inbox. At least one recipient (to, cc, or bcc) is required. Returns the message_id and thread_id. Replace {inbox_id} directly in the path with the full inbox email (e.g., /v0/inboxes/myagent@agentmail.to/messages/send).

Send a one-time verification code to a phone number.

Send a one-time verification code to an email address.

Get available seniority values for lookalikes filtering.

Master WAV of one verified SentEdge sound effect — 44.1kHz stereo, peak-normalised to -1 dBFS, trimmed and faded, delivered base64 in JSON with its measured acoustics. Every sound is machine-verified: envelope shape matches its declared intent, no clipping, one transient where one was specified. The metadata tells an agent where to align it to a cut (start/peak/end), whether it masks dialogue, and what gain to apply — so it can be placed without listening. Non-exclusive. Free searchable catalogue: GET https://sentedge.ai/api/sfx — filter by name, band, cut-alignment, dialogue-masking, loopability or duration (?q=, ?occupies=, ?align_on=, ?masks_dialogue=, ?loopable=, ?max_duration_s=, ?limit=) instead of pulling all 1000.

Rule-based market sentiment polarity scoring

Classify text sentiment (positive/negative/neutral) with a score, magnitude, and brief reason.

Sentiment scoring for caller-provided text: positive/neutral/negative with confidence. Batch up to 16 texts per call. Model: twitter-roberta-base-sentiment. Always-on, verified onchain settlement.

Server Timing Parse: Server Timing Parse parses bounded Server-Timing metrics and durations from bounded caller-supplied values without an external provider. Call Server Timing 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 Server Timing Parse as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-only executi…

Perform fresh TCP service identification against a public IP address or hostname and port. Returns protocol, detected service, software product, version and CPE information where observable.

Full reliability report on one x402 service from our own availability monitoring (~2 probes/day per host): daily probe series over 30 days (probes, ok, avg/max latency), uptime 7d/30d, all observed change events (up/down transitions, payTo drift, price drift, manifest appearing/disappearing) and the payment details as last observed in the service's own 402 responses. Returns 400 host_not_monitored (no charge) when we have no history for the host. Facts only — no scores.

Check whether an email address has an active stolen session cookie circulating in a criminal archive — a signal of account takeover that bypasses password resets and 2FA entirely. Call to detect AiTM/session-hijack attacks before an authenticated agent session is trusted.

Set prototype tier ($0.10 USDC) — auto-detects subscribe/renew/upgrade

Set difference a - b. Call when you remove blocked IDs from agent candidate lists. Returns difference 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.

Set intersection of two lists. Call when you find shared agent tags/IDs. Returns intersection 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.

Set union of two lists (order-preserving). Call when you merge agent allowlists. Returns union 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.

Estimated Base execution-gas cost of a settlement transaction (e.g. an ERC-3009 transferWithAuthorization), computed from our own current base-fee and ETH/USD observations. Execution gas only -- excludes priority fee and the Base L1 data fee, so treat this as a lower-bound estimate. Useful for micropayment break-even decisions. Descriptive statistics only; not investment advice.

Settlement verdict for a crypto price event: did the asset trade or close above/below a threshold in a window? Returns YES/NO/DISPUTED/UNRESOLVED with per-venue evidence, touch-vs-close handling, and stated confidence. Built for prediction-market settlement and conditional-order agents.

Verify a proof-of-work receipt is genuine and platform-signed, returning what it attests to and its on-chain settlement transaction where one exists.

Same computation as x402.gas.settlement_cost, re-shaped as a direct threshold comparison: pass your own max_acceptable_usd and get back action=settle_now or action=wait, plus how many seconds the reading is valid for before you should re-query. No new data, no judgment call beyond the arithmetic comparison you specified. Descriptive computation only; not investment advice.

Settlement/value date: T+n business days across national statutory calendars (intersected), with the market cycle cited to its primary source and a per-day trail

[3-LEG] Severe convection and hail chain, one convective region (?entity=tornado-alley-core): leading SPC Day-1 outlook with CAPE, CIN and shear - hours of lead -> current current storm reports -> realized realized hail and wind damage reports (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: NOAA SPC. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

SFtunes catalog for agents: index of public mixtapes and public Top 10 lists, or one item with liner notes and music-service links via ?id=<uuid> (tape) or ?id=top10-<handle> (a person's Top 10 + Side B).

Curated shelf of public-domain plays and dramatic works, including Shakespeare, ranked by historical popularity. Returns title, author, year, book_id, and drill-down routes for full-text retrieval. No license, no API key required.

Shallow-merge two objects (b wins). Call when you overlay agent defaults with overrides. Returns merged object and size 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.

Shape a messy UI, copy, page or JSON blob into a guaranteed ship | fix | rewrite verdict.

Shared risk exposure across declared positions: pass ?positions=aave:200000,morpho:150000 and get, per factor, how much capital sits behind the same collateral, oracle or curator, and via which venues. Morpho is attributed per isolated market, Compound by its real posted-collateral basket; Aave is unattributed because a v3 supplier is exposed to the whole pool, never split across assets. Verified per-asset accuracy is free at /accuracy.json; raw on-chain attestations at /track-record.

Shared risk exposure across declared WETH positions — same contract as the USDC exposure route. Pass ?positions=aave:100000,morpho:50000. Protocols whose collateral composition cannot be established are reported unattributed with the reason, never split across assets to imply diversification. Verified per-asset accuracy is free at /accuracy.json; raw on-chain attestations at /track-record.

Shares purchasable for a budget at a given share price. Call when sizing prediction-market orders from cash budget. Returns shares and residual cash 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.

Screen a crypto asset against Islamic finance (fiqh al-mu'amalat) prohibition criteria: riba (interest), maysir (gambling), gharar (excessive uncertainty), impermissible business, and real utility. Returns a per-criterion assessment with the reasoning behind each result, plus documented scholarly disagreement where it exists. For agents serving Muslim users who need to know whether an asset conflicts with Islamic finance principles. Educational screening, not a fatwa.

Screen a crypto asset against Islamic finance (fiqh al-mu'amalat) prohibition criteria: riba (interest), maysir (gambling), gharar (excessive uncertainty), impermissible business, and real utility. Returns a per-criterion assessment with the reasoning behind each result, plus documented scholarly disagreement where it exists. For agents serving Muslim users who need to know whether an asset conflicts with Islamic finance principles. Educational screening, not a fatwa.

Product safety & recall check for shopping agents: pass a product name, brand, or category and get official government recall matches — US CPSC plus the OECD GlobalRecalls feed covering the EU Safety Gate and 30+ jurisdictions. Deterministic lookup, no LLM: hazard, remedy, country, date, and a link to the official notice for every match. Check the toy before your agent buys the toy.

Birdie, the AI personal shopper: POST a shopping list (up to 3 items, free text or structured) and get back 3 best-fit picks per item plus a stacked savings plan — loyalty %, coupons, discounted gift cards, and the right credit card — researched live across the PulseNetwork shopping fleet. Best fit to your spec wins, not the cheapest listing.

Classify any brand into Standard Industrial Classification (SIC) codes from its domain or name.

Sigmoid 1/(1+e^{−x}) back to probability space. Call when mapping model scores into probabilities without ML frameworks. Returns probability from score 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.

Sign of a number (-1, 0, 1). Call when you branch agent logic on direction without float noise. Returns sign and original 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.

One complete crypto opportunity by signal_id (from /crypto/scan): classification, opportunity_score (0-100 heuristic, not a win probability), entry zone, stop-loss, take-profit, reward:risk, positive and negative factors, conditions and invalidation conditions, execution economics (net maker/taker), ML horizon scores with evidence status, entry validity versus expected hold, and upstream execution metadata. Market intelligence only: no execution, no custody, no position sizing. Paid per request.