Flow fill instruction on Base: the executable route package (venue, router, calldata params, min output, expiry block) for a swap whose best quote beats the Uniswap V3 baseline. Priced dynamically at 25% of the measured improvement, capped at 10 bps of output; $0 when there is no improvement.

Token price on Base by contract address: live USD price and pool liquidity from Uniswap v2/v3 and Aerodrome. Works for any token with a DEX pool, including newly launched ones

Look up a periodic-table element by exactly one of `symbol` (e.g. "Fe"), `name` (e.g. "iron") or atomic `number` (1..118). Returns its number, symbol, name, standard atomic weight and whether that weight is a true standard atomic weight.

Bulk look up multiple Twitter/X tweets by their numeric tweet IDs in a single request. Each tweet includes full text, author profile, and engagement metrics. Query param: ids (string, required) - comma-separated numeric tweet IDs, max 50, e.g. GET /tweets?ids=1110302988,1234567890. Returns X v2 API-compatible JSON.

Describes what is in an image in about one second: pass an https URL or base64 and ask anything about it, from a one-line caption to reading a sign. Pairs with the rest of the chain: describe an image, translate the description, then have it read aloud. You are only charged if the description is delivered. No API key, no account.

txpeek (Tanod) pre-transaction check: risk verdict for an address in about a second (proxy and admin control, verification, risky functions, token basics). Heuristic, not an audit. Use when an agent is about to send funds to or call an address and wants a quick risk check first.

Short Link Stats: Click stats for a freeq.one short link: total clicks, last-30-day clicks, last click time. FREE for the link owner — pass the manage_secret returned at creation as the link_secret field. The paid call is for agents checking a link they did not create (liveness/traffic check). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/shortlink_stats.

List comments on a Reddit post by URL.

Predictive probability and regression engine: least-squares linear regression with standard errors, confidence and prediction intervals, a fitted normal distribution with quantiles and probability queries (P(y > t)), exact Student t and Jarque-Bera p-values. Points inline or from a BigQuery table. Deterministic arithmetic, no LLM: the same input always returns the same numbers. Input: points or table with x_column, y_column; optional metrics, predict_x, probability_queries.

French address geocoding on the official Base Adresse Nationale (api-adresse.data.gouv.fr, Etalab/IGN, continuously updated). Forward: ?q=8 boulevard du port amiens with optional &type=housenumber|street|locality|municipality &citycode=80021 (INSEE filter). Reverse: ?lat=49.897&lon=2.290. &limit=1-10 (default 3). Each match returns normalized label, confidence score, lat/lon, street, postcode, city, INSEE citycode and context. No match returns 400 (not billed). Cached 24h.

Find companies whose recent JOB POSTS mention a technology via OpenFunnel (SYNC, 50 results/page): { tech } (e.g. "Snowflake") + optional `variations` (OR-matched phrasings, e.g. ["K8s"]), `lookback_days` (≤365), `page`, `enrich` (firmographics), `hq_country_code` (alpha-3), min/max_employee_count (filters auto-enable enrich), `include_evidence` (the job-post snippet — the outreach hook). Perfect for "sell to companies running X" and competitor-displacement plays.

Proprietary, daily-scored US residential real-estate deals for investors. Each on-market listing is graded (STRONG / MODERATE / FAIR) for flip, BRRRR, or buy-&-hold, with an estimated ARV from a live comp set, gross spread, margin %, cap rate / cash flow, days on market, comp count and the source URL. Filter by state, ZIP, city, price, beds, margin and ARV confidence. Coverage: FL, GA, NC, SC, AL, MS (2,400+ metro ZIPs).

Skim Signal: studio jobs — weekly counts of AI, content-ops, and production-staff postings (UPM, line producer, coordinator, AD, and more) across 7 major Hollywood studios, pulled from each studio's ATS API. One item per studio per ISO week with per-query counts; sourcesDown flags any studio board that failed this cycle. Refreshed daily.

Bulk identity lookup for up to 200 wallet addresses (POST body: {addresses: [..]})

Social Posting APIs 2026: Limits and Costs — Tells a publishing agent what the social networks allow, cost and return in autumn 2026, checked on 8 October 2026, before it plans or writes the posting code. Covers X (no free tier, pay per request, a post with a link costs more), Hashnode (public API now needs a paid plan), Pinterest feed auto-publish (domain claim, first board by alphabet, image tag, first pins within the hour), Mastodon (media 202, scopes, token replacement, one-hour Idempotency…

Compile 1-8 documents into a token-budgeted context pack, then measure exact retention of 1-32 caller-labelled evidence spans. Returns the pack, source-linked passages, input and output hashes, original and compiled token estimates, tokensSaved, source coverage, and requiredEvidenceRetentionPercent. Retention is exact span matching only: not accuracy, answer quality, verification, or hallucination prevention. Extractive and budget-bound. Request content is not stored.

The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock

Image Prompts in One Style: Clean Pictures for a Site — Writes prompts for image models (FLUX, Stable Diffusion, ChatGPT images, Gemini and the like) that give a website, a blog or a product one recognisable style and come back without garbled letters. The scene comes first and the site's style recipe follows it word for word; absence is described positively instead of "no text, no watermark", which in a single prompt box summons those very things; anything that would need readable writing (a p…

Relevant pages API - list a domain's best-performing pages in Google, each with page-level organic and paid metrics: ranked keyword count, estimated traffic (ETV), traffic cost and position buckets (pos1/top3/top10/top100). For finding a site's top content, competitor content research and page-level SEO audits. Unknown domain returns empty results.

List Wirecutter review URLs from the public Wirecutter review sitemaps. Defaults to recommendation-like review pages.