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the-undesirables.com

12 agent-payable APIs. Every listing carries a tested call recipe - endpoint, auth shape, pricing, and known gotchas - on its detail page. the-undesirables.com

APICategoryPrice / callUptime 30dStatusDocs
The Undesirables Oracle
Optimize a trading card portfolio with Markowitz mean-variance analysis over conformal-calibrated risk forecasts (Monte Carlo GBM/Merton available opt-in). Provide a list of card names, budget, and risk tolerance (conservative/moderate/aggressive) to receive optimal position sizing, per-card allocation weights, Sharpe ratios, and rebalancing recommendations.
-$0.50-listedcall recipe →
The Undesirables Oracle
Batch Card Triage: upload multiple card image URLs and get a profit-ranked grading triage. Each card is graded by AI, then scored by expected ROI from professional grading. Returns a ranked list sorted by highest expected profit first. Perfect for dealers and agents evaluating collections.
-$0.50-listedcall recipe →
AI Decision Synthesis API
Paid x402 endpoint for multi-model AI voting and decision synthesis.
-$0.10-listedcall recipe →
The Undesirables Oracle
Grade any physical Pokémon, Magic: The Gathering, Yu-Gi-Oh, or Digimon trading card using a 3-stage AI pipeline: (1) Qwen Vision LLM analyzes corners, edges, and surface defects, (2) OpenCV measures exact centering ratios programmatically, (3) BGS professional capping algorithm adjusts the final grade. Returns PSA/Beckett-calibrated subgrades and an overall condition score. Accepts card image URLs or base64.
-$0.10-listedcall recipe →
Prediction Market Data API
Paid x402 endpoint for newly created prediction-market data and emerging betting topics.
-$0.50-listedcall recipe →
The Undesirables Oracle
NFT collection floor-price oracle: fetches real-time floors via Alchemy and returns risk-aware price forecasts — current floor, historical volatility, drift, and forecast percentiles. Forecasting uses Merton Jump-Diffusion modeling for this crypto-native asset class. Supports any ERC-721 or ERC-1155 contract on Ethereum mainnet.
-$0.05-listedcall recipe →
The Undesirables Oracle
Historical token price forecaster: fetches OHLC (Open, High, Low, Close) data from CoinGecko and projects forward trajectories with percentile forecasts. Uses Merton Jump-Diffusion modeling for this crypto-native asset class.
-$0.05-listedcall recipe →
The Undesirables Oracle
Detect mispriced weather derivatives on Kalshi by comparing live National Weather Service forecast data against current contract pricing. Finds statistical edges in temperature, precipitation, and wind speed markets.
-$0.25-listedcall recipe →
The Undesirables Oracle
Daily TCGCSV market data snapshot with top movers, price changes, and volume trends across all 13 supported TCG games.
-$0.025-listedcall recipe →
The Undesirables Oracle
Trending Cards Feed: returns the top trading cards by market activity (30-day sales volume, views, price velocity). Covers all 25 supported TCG games. Useful for autonomous buy/sell agents tracking market momentum and identifying emerging opportunities.
-$0.025-listedcall recipe →
The Undesirables Oracle
The Decision Endpoint: one paid call composing everything a collector or agent needs to act on a card — live comps (raw + observed PSA/BGS/CGC graded asks), the conformal-calibrated 30-day forecast (median, 5th–95th bands, honest VaR, Safe-Hold and Momentum grades), and a grade-ROI answer, plus a deterministic MARKET STANCE grade. Composed from the same internals the individual endpoints serve, so it can never disagree with them. Not financial advice — a calibrated market read.
-$0.30-listedcall recipe →
The Undesirables Oracle
Phygital Arbitrage Screener: cross-references Courtyard.io tokenized card listings against TCGPlayer raw prices to find BUY/SELL signals. Covers 267K+ vaulted, insured, tradeable cards on Polygon.
-$0.10-listedcall recipe →
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