| Sentedge Trust API SentEdge Trust: check up to 10 agents before you commit to working with them. One call returns each agent's confidence tier and score plus a compatibility read across the set — the cheap check to run before delegating a task or releasing funds to an unknown counterparty. Tiers require counterparty diversity and elapsed time, so a fresh agent cannot fake a track record. Free alternative: GET /v1/signals. Full API: https://sentedge.ai/trust/skill.md | sentedge.ai | - | $0.015 | listed |
| Sentedge Trust API SentEdge Trust: which agents in a domain are most trustworthy? Ranks agents by economic confidence (attestation-derived trust) or by visibility (discovery index) — you choose which, because they answer different questions. Use it to shortlist counterparties before delegating work or moving funds. Free alternative: GET /v1/discover. Full API: https://sentedge.ai/trust/skill.md | sentedge.ai | - | $0.015 | listed |
| Sentedge Trust API SentEdge Trust: check up to 10 agents before you work with them — each one's confidence tier and score plus a compatibility read. GET form for agents that cannot send POST: same price and response, fields as query parameters. Free alternative: GET /v1/signals. Full API: https://sentedge.ai/trust/skill.md | sentedge.ai | - | $0.015 | listed |
| Sentedge Trust API SentEdge Trust: buy temporary visibility for your own agent in discovery feeds and rankings. This moves the visibility signal ONLY — it cannot raise your confidence score or confidence tier, which come solely from signed attestations on completed interactions. Paying for reach never buys trust here. Free alternative: build confidence by recording real interactions via POST /v1/interactions and POST /v1/attest. Full API: https://sentedge.ai/trust/skill.md | sentedge.ai | - | $0.12 | listed |
| Sentedge Trust API SentEdge Trust: buy temporary visibility for your own agent in discovery feeds. Moves the visibility signal only — it can never raise confidence. GET form for agents that cannot send POST: same price and response, fields as query parameters. Full API: https://sentedge.ai/trust/skill.md | sentedge.ai | - | $0.12 | listed |
| Sentedge Trust API SentEdge Trust: which agents are gaining attention right now? Surfaces agents rising on the visibility signal over a 1h/6h/24h/7d window. Visibility is a discovery index, NOT a trust score — check confidence separately before transacting. Filterable by domain and repeat-intent ratio (how often counterparties come back). Free alternative: GET /v1/discover. Full API: https://sentedge.ai/trust/skill.md | sentedge.ai | - | $0.03 | listed |
| Sentiment - Confusion matrix Sentiment - Confusion matrix: Confusion matrix for Sentiment. Up to 200 supplied labelled text records. Local dataset tools, evaluation and small naive-Bayes baselines; no hosted model or foundation-model training. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded confusion matrix deliverable. | datapackvibe.com | - | $0.01 | listed |
| Sentiment - Label distribution Sentiment - Label distribution: Label distribution for Sentiment. Up to 200 supplied labelled text records. Local dataset tools, evaluation and small naive-Bayes baselines; no hosted model or foundation-model training. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded label distribution deliverable. | datapackvibe.com | - | $0.01 | listed |
| Sentiment - Top-k label coverage Sentiment - Top-k label coverage: Top-k label coverage for Sentiment. Up to 200 supplied labelled text records. Local dataset tools, evaluation and small naive-Bayes baselines; no hosted model or foundation-model training. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded top-k label coverage deliverable. | datapackvibe.com | - | $0.01 | listed |
| Sentiment API Scores each item matching q in the last N hours (1-168, default 24) with a keyword/emoji lexicon (rise/beat/upgrade vs. fall/miss/sanctions, ⬆️/⬇️) plus explicit '= ±X%' moves, and returns bullish/bearish/neutral counts, score = (bullish - bearish)/count in [-1, 1], a label and examples. method is always 'heuristic'. | onrender.com | - | $0.005 | listed |
| Sentiment API Sentiment classification (positive/negative/neutral) + emotion keyword hits. | thirdmade.net | - | $0.001 | listed |
| Sentiment API Sentiment analysis with score, emotions and per-aspect sentiment — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.003 | listed |
| Sentiment API Sentiment score for a Polymarket or Kalshi market question | onrender.com | - | $0.05 | listed |
| Sentiment Analysis API Tokenizes caller-supplied text and counts matches against a small declared English/German unigram lexicon. It reports coverage and a normalized polarity score; it does not understand context, sarcasm, negation, policy merit, or public opinion. | halowerk.com | - | $0.002 | listed |
| Sentiment Classification API Sentiment classification: Verb-path alias of POST /v1/cheap-errand ($0.01 USDC). Same handler + payment terms; path defaults task=sentiment when body.task omitted. Cheap agent glue for buyer-supplied text. Base via x402. No API key. | hydratrader.ai | - | $0.01 | listed |
| Sentiment Movers API Korean listed companies whose net news sentiment over the last N days (default 30) moved furthest from their historical average — sharp deterioration or improvement — with article counts, baseline vs current sentiment, the delta and representative headlines. direction=both (default), drop, or improve. | deepsearch.com | - | $0.10 | listed |
| Sentiment Of A Text API Sentiment of a text: positive, negative, neutral or mixed, a score from -1 to 1, the emotions present and a one-line reason. | manylives.me | - | $0.01 | listed |
| Sentiment analysis of text Positive or negative sentiment of English text with a confidence score, from a DistilBERT model fine-tuned on SST-2. Use to triage reviews, support messages, social posts and replies. | workers.dev | - | $0.01 | listed |
| Seoul Subway Real Time Arrivals API Seoul subway real-time arrivals: next trains at any station (line, direction, minutes, last train). Station names in English, Japanese or Korean. Transit, travel, live | k-agentpay.com | - | - | listed |
| Series API JIN daily food index series for Japan (excl/incl promo, matched SKU count). Single-store observation, not official CPI, not a forecast. Paid in JPYC. | x402jp.com | - | - | listed |
| Serp API Structured Google search results (organic listings, direct answer box, related questions) — for an agent that needs to know what Google actually ranks for a query (competitive research, SEO/brand monitoring, fact-checking search visibility). JSON body: {query: string, country?: 2-letter ISO code (default 'us')}. | onrender.com | - | $0.005 | listed |
| Serp Competitors API SERP competitors API - given a set of target Google keywords, find the domains that dominate those search results, each with how many of the keywords they rank for, average and median position, SERP rating, estimated traffic (ETV) and visibility. Unlike a domain-based competitor lookup, this starts from the keywords you want to win. For competitive SEO and content-strategy research. Empty results if none. | openverbs.com | - | $0.05 | listed |
| Service API 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. | workers.dev | - | $0.02 | listed |
| Service API Returns a per-day download time series for an npm package over a period from keyless api.npmjs.org — the raw signal for trend and growth-rate detection. Lets autonomous agents compute momentum/decline and feed agent-to-agent dependency-selection scoring. Ranking surface for trajectory. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. | hergertsynthora.com | - | $0.001 | listed |
| Service Availability Observations API Service availability observations - String normalisation: String normalisation for Service availability observations. Up to 200 supplied typed records. Local descriptive analytics; no enrichment or forecast. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded string normalisation report. | datapackvibe.com | - | $0.01 | listed |
| Service Discovery Audit API Checks caller-supplied x402 and agent discovery documents for path, price, currency, network, and routing consistency. | blockchainmoneymap.com | - | $0.25 | listed |
| Service Report API 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. | workers.dev | - | $0.05 | listed |
| Service Status & Outage Scanner Give it status-page hosts/URLs (githubstatus.com, status.openai.com) or company names to auto-resolve. For each it reads the public Statuspage API into a status brief: current status, affected components, open incidents and recent incident history, with a reliability signal. Keyless. One search per call (result caps in the input schema); failed lookups are not charged. | workers.dev | - | $0.01 | listed |
| Session API Opens a browser session and returns the map of controls. | oassis.dev | - | $0.006 | listed |
| 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 JSO 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. | delx.ai | - | $0.001 | listed |
| Settle API Signed Solana settlement verification (did tx credit amount of mint to payee). Free preview: GET /settle/preview | nsgoods.org | - | $0.01 | listed |
| Settled Live liveness + quote check for any x402 endpoint: probes it unpaid (cached ≤5 min), returns status, latency, parsed price/network/payTo, schema completeness, on-chain payer activity (Base), quality score and risk flags. Call before paying an unfamiliar endpoint. | settled.tools | - | $0.002 | listed |
| Settled Scan one bounty / task / repository URL before working on it: fetches it (GitHub issues and repos via the API), runs the honeypot pattern scan (hidden HTML-comment instructions, prompt injection, credential requests, fork/star anomalies, dead or archived repos, reward anomalies) and returns a trust score, a label and every flag with its reason. | settled.tools | - | $0.005 | listed |
| Settled Verified agent-income listings: open bounties and tasks from sanctioned venue APIs (Taskmarket, Superteam Earn, GitHub bounty labels), each with reward, agent-access policy, gating (KYC / human claim / self-custody wallet), a honeypot scan with reasons, a trust score and the venue's on-chain payout record. Honeypots and human-only listings are excluded by default. | settled.tools | - | $0.01 | listed |
| Settled Pre-spend check for one x402 endpoint in a single signed response: fresh liveness probe on both verbs, parsed quote, payability verdict (payable / malformed 402 / cannot pay on either verb / unpriced), whether the payTo exists on-chain, the seller's other endpoints and settlement integrity, the scout's real-payment delivery result, and a honeypot scan of the listing text. Returns recommendation: pay | caution | avoid, with reasons. Call it before the first payment to an unfamiliar endpoint. | settled.tools | - | $0.005 | listed |
| Settled Ranked list of live x402 endpoints (top 50) filtered by keyword, network and max price, ordered by Settled quality score. Use it to find a working alternative to a dead or overpriced endpoint. | settled.tools | - | $0.005 | listed |
| Settled Buy a 24-hour day pass: one payment unlocks every Settled route (check, endpoints, payto) and all MCP tools for 24h at up to 120 requests/min. Returns a bearer token to send as the x-settled-pass header. | settled.tools | - | $0.05 | listed |
| Settlement Proof API Settlement Proof — chain_id=8453/tx_hash=0x381b311efe17fdce7e3e26d211253197bfb715195152b016b9576b6528989684 | taifoon.io | - | $0.50 | listed |
| Settlement/value Date API 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 | afriref.dev | - | $0.05 | listed |
| Settlement/value Date API 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 | latamref.dev | - | $0.05 | listed |
| Settlement/value Date API 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 | usaref.dev | - | $0.05 | listed |
| Settlement/value Date API 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 | asiaref.dev | - | $0.05 | listed |
| Settlement/value Date API 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 | mearef.dev | - | $0.05 | listed |
| Settlement/value Date API 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 | ausref.dev | - | $0.05 | listed |
| Settlement/value Date API 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 | euroref.dev | - | $0.05 | listed |
| Severe Weather History API Hail, damaging wind and tornado history for a US street address or lat/lon. Every NOAA Storm Prediction Center storm report within a radius (1-50 miles, default 10) over a lookback window (default 20 years, back to 1955): counts, hail days, largest hail, strongest wind, tornado ratings and track distance, a year-by-year table, and each event with distance and direction. | railway.app | - | $250,000.00 | listed |
| Sftunes Catalog For Agents API 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). | sftunes.com | - | $0.01 | listed |
| Sha 1 Digest Of Text Or Raw Bytes API SHA-1 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.001 | listed |
| Sha 224 Digest Of Text Or Raw Bytes API SHA-224 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.001 | listed |
| Sha 256 Digest Of Text Or Raw Bytes API SHA-256 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.001 | listed |