Your AI co-manager for fantasy baseball.

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March 22, 2026

2026 Rank: #1616

Oddsmythv1.1.0

United States Fantasy baseball

11,999

5.0(2)1

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Your AI co-manager for fantasy baseball.

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Overview

Oddsmyth is an AI co-manager for fantasy baseball. Connect your Yahoo or ESPN Fantasy league and get personalized lineup, waiver wire, trade, and matchup advice based on your actual roster, opponents, and scoring settings. Once connected, Oddsmyth imports your roster,standings, and league settings and provides an instant team overview. It acts as a knowledgeable second opinion you can bounce decisions off of -- start/sit choices, trade evaluations, waiver pickups -- but you always make the final call. Every morning at 9am ET, you get a free email brief with lineup suggestions and swap recommendations for that day's games.
Recommendations are backed by live data from the MLB Stats API, Statcast expected stats from Baseball Savant, rest-of-season projections from FanGraphs Steamer, and your league's specific data from Yahoo or ESPN. Oddsmyth requests read-only access to your fantasy league and never stores Yahoo credentials. Pricing is credit-based: in-depth analyses cost 1 credit, quick questions and daily briefs are always free, and new users start with 5 free credits.

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Oddsmythv1.1.0

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Oddsmyth v1.1.0

Mar 22, 2026

Now open to all users - no waitlist. 5 free credits on signup.

New features:
- Draft Prep Mode: get pre-draft strategy without connecting a league
- Player comparison tool: side-by-side stats and projections for 2-3 players
- FanGraphs Steamer ROS projections integrated into every recommendation
- Live game scores and player stats in context panel
- Chat history: access past analyses anytime
- SEO guides: xwOBA explainer, scoring settings, trade evaluation
- Comparison pages: Oddsmyth vs ChatGPT, vs FantasyPros

Improvements:
- Smarter query classification (fewer false credit charges)
- Streaming tool-call progress (see what the AI is doing in real-time)
- Mobile UX polish (safe areas, better touch targets, swipe gestures)
- Spring training stats support

2 0

Author

Kwan Kim

@kwan-kim

Ex-Amazon software engineer. Solo founder. Building an AI co-manager for fantasy baseball. Yahoo first but ESPN/Sleeper coming by the end of April.

🇺🇸 United States

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1 tool

4karma

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Joined: March 2026

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$4.99/unit

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Fantasy baseball Oddsmyth

United States Fantasy baseball

11,999

5.0(2)1

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Kwan Kim

🛠️ 1 tool 🙏 4 karma

Mar 18, 2026

@ initial release

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@Oddsmyth

Hey! I'm Kwan, the solo founder behind Oddsmyth. I built this because I play in 2 Yahoo H2H fantasy baseball leagues and was spending 30+ minutes every morning researching lineups, scanning the waiver wire, and evaluating trades. The tools I tried (FantasyPros, Yahoo's built-in recs) all had the same problem: they don't know my league. They give generic advice based on generic rankings. Oddsmyth connects to your Yahoo Fantasy league and actually knows your roster, your opponents, your scoring settings, and who's available on your waiver wire. You can ask it anything in plain English ("who should I start today?", "is this trade worth it?", "who should I grab off waivers?") and it gives you a specific answer with reasoning based on your situation. It's not meant to replace doing your own research. It's a second opinion you can bounce decisions off of when you're torn on a close call or managing multiple leagues and don't have time to dig into every decision. The AI is powered by Claude and uses live data from the MLB Stats API, FanGraphs Steamer projections, and your Yahoo league data. You get 5 free credits to try it. Quick questions (game times, scores, injury checks) are always free. I'd love feedback from anyone who plays Yahoo fantasy baseball. What's working, what's not, what would make it more useful. I'm building this in public and actively improving it based on what real users tell me.

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Pros and Cons

Pros

Connects to Yahoo Fantasy

Imports user's roster

In-depth team overview

Provides lineup changes insights

Guides on waiver wire

Aids in trade decisions

Based on user's roster

Analyzes opponents

Considers scoring settings

Incorporates league-specific factors

Uses official MLB Stats API

Includes FanGraphs Steamer projections

Incorporates Yahoo Fantasy data

Transparency in recommendations

Promotes informed decision-making

Read-only access to leagues

Protects user's control

Doesn't store user credentials

Uses OAuth tokens

Future integration with ESPN

Future integration with Sleeper

Acts as co-manager

Offers second opinion

Provides matchup strategies

Quick team overview

Provides fact-based recommendations

Ensures account safety

Simple credit pricing system

Free replies to quick questions

Plans to support multiple platforms

View 25 more pros

Cons

Not autopilot

Read-only league access

Only supports Fantasy Baseball

No storage of credentials

User makes final decisions

Lacks real-time decision-making

Usage restricted to MLB

View 2 more cons

Q&A

What features does Oddsmyth offer?

Oddsmyth offers a multitude of features such as lineup optimization, waiver recommendations, trade evaluations, and matchup strategies. It provides a comprehensive team overview by importing the user's current roster, standings, and league settings. Furthermore, it gives detailed analytical perspectives based on the user's roster, opponents, scoring settings, and other league-specific factors.

How does Oddsmyth integrate with my Yahoo Fantasy league?

Oddsmyth integrates with your Yahoo Fantasy league by connecting to it. Upon connection, it intelligently imports your current roster, standings, and league settings. This information is used to provide a thorough overview of your team.

Which data sources does Oddsmyth use for analysis?

Oddsmyth utilizes multiple data sources for analysis. These include live stats and schedules from the official MLB Stats API, rest-of-season projections from FanGraphs Steamer, and your league's specifics from Yahoo Fantasy, to provide a data-driven perspective on your decision-making.

How does Oddsmyth ensure my privacy?

odsmyth ensures your privacy by limiting its access level to read-only mode when connecting to your leagues. This means it can analyze the data but can't make any changes. Furthermore, it doesn't store client credentials but uses industry-standard OAuth tokens for additional security.

What type of access does Oddsmyth have to my Fantasy league data?

Oddsmyth has read-only access to your Fantasy league data. It means it can view and analyze your data, but it does not have the ability to modify, delete, or change any details. This is a security measure that ensures user control over the data.

Can Oddsmyth make changes to my lineup or trades?

No, Oddsmyth cannot make changes to your lineup or trades. The AI tool has only read-only access to your Fantasy league, meaning it cannot modify any data. It only offers second opinion, leaving all final judgment calls to the user.

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Does Oddsmyth store my Yahoo credentials?

Oddsmyth does not store your Yahoo credentials. Instead, it uses industry-standard OAuth tokens to connect to your Fantasy league. This method is a safety measure that further strengthens data security while respecting user privacy.

Are ESPN and Sleeper integrations available on Oddsmyth?

While Yahoo Fantasy is supported at launch by Oddsmyth, integrations with ESPN and Sleeper are in the pipeline. As of now, these additional integrations are not yet available, but they're expected to broaden the platform's reach.

What insights does Oddsmyth provide for lineup optimization?

Oddsmyth offers insights for lineup optimization by factoring in the user's roster, opponents, scoring settings, and other league-specific aspects. It combines these factors with live stats and schedules from the MLB Stats API, as well as rest-of-season projections from FanGraphs Steamer.

How does Oddsmyth help with trade evaluations?

Oddsmyth aids in trade evaluations by analyzing the user's current roster, performance statistics, league dynamics, and projections. It offers a balanced opinion, backed by comprehensive data, specific to the user's league settings and player performance.

What are Oddsmyth's strategies for matchup?

Oddsmyth strategizes for matchups taking into account user's roster, opponents, league scoring settings, and other league-specific aspects. It provides detailed analysis and recommendations based on these factors to give better understanding of the competition.

What is meant by Oddsmyth being an AI co-manager?

Oddsmyth, being an AI co-manager, means it assists you in managing your Fantasy Baseball game. It doesn't take over your decision-making process, but provides a second opinion based on comprehensive data analysis. Thus, it enhances your experience in Fantasy Baseball without taking away your control.

Can Oddsmyth be considered as an autopilot for my Fantasy Baseball?

Oddsmyth should not be considered as an autopilot for Fantasy Baseball because while it provides detailed analysis and recommendations, it doesn't make decisions on behalf of the user. It's designed to help and not to control; hence, all final judgment calls are left to the user.

How does Oddsmyth's waiver recommendations work?

Oddsmyth's waiver recommendations work by providing ranked suggestions backed by Steamer projections and the league's scoring. It provides analytical reasoning for every recommendation, allowing users to make informed decisions regarding their team.

What is the objective of citing data sources in Oddsmyth's recommendations?

Citing data sources in Oddsmyth's recommendations enhances transparency. Users can understand the basis of the provided recommendations and feel more confident in their decisions, knowing they have been made using data from trusted, reliable sources.

How Oddsmyth's read-only access tool enhances user data security?

The use of a read-only access tool in Oddsmyth enhances user data security by preventing any alterations or changes being made to the user's league data. The tool can view and analyse the data but remains unable to make any modifications.

In what ways does Oddsmyth provide decision support?

Oddsmyth provides decision support in several ways including offering in-depth analysis on lineup optimization, waiver recommendations, trade evaluations, and matchup strategies. It reviews roster, matchup, and waiver wire so users can get insightful perspectives promptly. All recommendations come with reasoning, however, final decisions are always left to the owner.

What are the advantages of using FanGraphs Steamer and MLB Stats API in Oddsmyth?

The advantages of using FanGraphs Steamer and MLB Stats API in Oddsmyth include access to live stats, schedules, and rest-of-season projections which are crucial for making educated decisions. These reputable sources contribute to the in-depth analysis and recommendations provided by Oddsmyth.

How does the tool respect user privacy while connecting to leagues?

While connecting to leagues, Oddsmyth respects user privacy by requesting read-only access, which restricts it from making any changes. Moreover, it enhances data security by not storing any user credentials and instead uses industry-standard OAuth tokens for access.

What does it mean for Oddsmyth to have industry-standard OAuth tokens security?

Oddsmyth having industry-standard OAuth tokens security means that it uses secure authentication methods which helps in strengthening data security. It does not store user credentials, reducing the risk of sensitive data exposure. Users can revoke these tokens at any time from their account settings, which gives them full control over their data.

What is Oddsmyth?

Oddsmyth is an AI-based co-manager tool built to fortify experience in Fantasy Baseball. The AI is designed to connect with a Yahoo Fantasy league, intelligently importing user's current roster, standings, and league settings to provide an extensive team overview.

How does Oddsmyth work?

Oddsmyth connects to your Yahoo league, importing your roster, standings, and league settings. It then provides immediate team overview and assists in making decisions about lineup changes, waiver wire, and trades. However, the tool acts as a co-manager, providing advice but leaving the final decision to the user.

How does Oddsmyth connect with my Yahoo Fantasy league?

Oddsmyth connects with your Yahoo Fantasy league through a one-time, 30-second authorization process that allows read-only access to your league data. This includes your roster, standings, and league settings.

What kind of advice does Oddsmyth provide?

Oddsmyth provides lineup, waiver wire, trade, and matchup advice. Each recommendation is based on an analytical perspective considering your roster, opponents, scoring settings, and additional league-specific factors.

What is the source of Oddsmyth's data and recommendations?

Oddsmyth's data and recommendations are derived from multiple sources. These include live stats and schedules from the official MLB Stats API, rest-of-season projections from FanGraphs Steamer, and your league-specific data from Yahoo Fantasy. All recommendations made by Oddsmyth cite their data sources.

Does Oddsmyth store my Yahoo credentials?

No, Oddsmyth does not store any of your Yahoo credentials. It utilizes industry-standard OAuth tokens for account connection, enhancing security.

What is the extent of Oddsmyth's access to my fantasy leagues?

Oddsmyth has a read-only level of access to your fantasy leagues. This allows it to analyze and provide feedback on your team and league information without making any actual changes.

Is Oddsmyth planning integration with ESPN or Sleeper?

Yes, post-launch, Oddsmyth plans to include integrations with ESPN and Sleeper, broadening the tool's reach.

Is Oddsmyth an autopilot or a co-manager?

Oddsmyth operates as a co-manager, not an autopilot. It provides a second opinion and detailed reasoning for its advice but leaves all final decisions to the user.

How does Oddsmyth enhance my Fantasy Baseball experience?

Oddsmyth enhances your Fantasy Baseball experience by providing an analytical perspective to support decision-making across lineup changes, waiver wire, and trades. It employs data from MLB Stats API, FanGraphs Steamer, and your league's specifics from Yahoo Fantasy, ensuring your decisions are well informed.

What is the credit pricing system on Oddsmyth?

Oddsmyth operates on a simple credit pricing system where charges apply per in-depth analysis. The pricing structure offers different packages for purchasing credits, with discounts available on bulk purchases.

What counts as a credit in Oddsmyth?

In the credit system of Oddsmyth, one credit is used for an in-depth analysis which includes lineup optimization, waiver recommendations, trade evaluations, and matchup strategy.

Does Oddsmyth manage my team for me?

No, Oddsmyth does not manage your team, it only acts as a co-manager providing advice. The final decision regarding lineup changes, trades, or any other changes remain in your hands.

What is the rationale behind Oddsmyth's recommendations?

Oddsmyth's recommendations are backed with a reasoned analysis based on data drawn from several sources, including the official MLB Stats API, FanGraphs Steamer, and your league's specifics from Yahoo Fantasy.

What is the level of user privacy offered by Oddsmyth?

Oddsmyth respects user privacy by maintaining read-only access to your leagues and not storing any client credentials, thus ensuring high levels of privacy.

Can Oddsmyth make changes to the lineup, trades, etc.?

No, Oddsmyth cannot make changes to the lineup, trades, or any other league aspects. Its level of access is read-only, which allows the user to maintain full control over their team.

What does an in-depth analysis by Oddsmyth include?

An in-depth analysis by Oddsmyth includes aspects such as lineup optimization, waiver recommendations, trade evaluations, and matchup strategies.

How can I revoke Oddsmyth's access to my Yahoo account?

You can revoke Oddsmyth's access to your Yahoo account at any time by going to your Yahoo account settings and revoking the OAuth tokens.

Can Oddsmyth give answers to quick factual questions?

Yes, Oddsmyth can provide quick responses to factual questions, such as game times, injury checks, and scores. These are part of its free services.

Are there any free features on Oddsmyth?

Yes, Oddsmyth offers free features. Quick factual questions and follow-up questions in the same thread are always free. Plus, upon starting, every user receives five free credits.

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Oddsmythv1.1.0

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