Oddsmyth
Summary
Every serious fantasy baseball manager has second-guessed a lineup call at 11:58pm and wished they had someone to think out loud with — not a stat dump, but actual reasoning against their specific roster and matchup. Oddsmyth is that sounding board, built specifically for Yahoo and ESPN leagues.
The tool connects to your league via read-only OAuth, pulls your roster, scoring settings, standings, and live MLB data, then answers decision questions with cited reasoning rather than generic advice. Start/sit calls, waiver prioritization, trade evaluations, and matchup strategy each cost one credit; quick factual questions — injury status, game times, scores — and follow-up questions in an active thread are always free. The daily 9am brief, which flags your lineup and names one action item before first pitch, is also free. The ceiling appears when you need something Oddsmyth does not touch: it covers Yahoo and ESPN only, makes no moves on your behalf, and does not support other platforms or custom-scoring leagues outside those two ecosystems.
Bottom line: Pick this if you manage a Yahoo or ESPN baseball league and want Statcast- and Steamer-backed reasoning on close calls — skip it if your league runs on a third platform or you want automation that actually submits the waiver claim.
Pricing Plans
Usage-Based- Free Tier
- 5 free credits on signup; unlimited quick questions and daily/weekly free reports
Free
5 free credits on signup; quick questions and daily briefs always free
- Read-only league connection
- Daily 9am briefs
- Weekly report cards
10 credits
One-time purchase
- 10 in-depth analyses
30 credits
One-time purchase
- 30 in-depth analyses
75 credits
One-time purchase
- 75 in-depth analyses
200 credits
One-time purchase
- 200 in-depth analyses
View full pricing on oddsmyth.ai →
Pricing may have changed since last verified. Check the official site for current plans.
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Pros
Sign in to edit- Roster-aware reasoning that references your specific scoring settings and matchup, so recommendations are not the same generic advice every manager on the platform receives.
- Statcast metrics — xwOBA, barrel rate, exit velocity — combined with FanGraphs Steamer projections in a single answer, which means you avoid manually reconciling two separate tools before making a call.
- Free daily lineup brief every game day morning, so you have a baseline sanity check on your roster without spending a credit even in a low-activity week.
- Credits never expire and require no subscription, so a light user who makes five meaningful decisions in a season is not paying for a monthly seat they barely touch.
- Read-only platform access enforced by design, so connecting your Yahoo or ESPN account does not expose roster-editing permissions to a third-party service.
Cons
Sign in to edit- Yahoo and ESPN are the only supported league platforms. A manager whose league runs on Sleeper, Fantrax, or NFBC gets no roster-aware analysis — Draft Prep mode covers player research but loses the matchup- and scoring-setting context that makes the core product useful. Those managers will move to a general-purpose LLM with manual stat pasting, or to a platform-native tool.
- Every in-depth analysis — lineup, waiver, trade, matchup — draws a credit, and there is no bulk-query option. A manager working through a five-player waiver decision with branching follow-ups across multiple threads will exhaust credits faster than the pricing page implies; the free follow-up exemption applies within a single thread, not across separate sessions.
- The tool offers no execution layer. If you want a service that actually submits the waiver claim or sets the lineup after giving its take, Oddsmyth stops at the advice step — you do the clicking. Managers who want automation, not a second opinion, will leave for a platform that has direct write access.
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About
- Platforms
- Web (Yahoo Fantasy, ESPN Fantasy)
- API Available
- No
- Self-Hosted
- No
- Last Updated
- 2026-07-13T20:41:05.320Z
Best For
Who it's for
- Yahoo Fantasy users
- ESPN Fantasy users
- Fantasy baseball managers seeking data-backed second opinions
- Users wanting Statcast and projection insights
What it does well
- Lineup start/sit decisions
- Waiver wire recommendations
- Trade evaluations
- Matchup strategy analysis
- Daily lineup briefs
Integrations
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Frequently Asked Questions
- Is Oddsmyth free?
- Oddsmyth has a permanent free tier alongside paid upgrades. You can keep using a baseline version indefinitely without paying.
- Is Oddsmyth open source?
- No — Oddsmyth is a closed-source tool. Source code is not publicly available.
- What platforms does Oddsmyth support?
- Oddsmyth is available on: Web (Yahoo Fantasy, ESPN Fantasy).
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Curated lists that include this category
Oddsmyth connects to a Yahoo or ESPN fantasy baseball league in a single OAuth step, imports your roster, standings, and scoring settings, and then functions as a chat-based co-manager. You ask it a question — should I start this pitcher against Colorado? is this trade fair? — and it returns a take with explicit reasoning, citing which data source drove the recommendation. The vendor states data comes from the MLB Stats API for live stats, FanGraphs Steamer for rest-of-season projections, and Baseball Savant for Statcast metrics including xwOBA, barrel rate, and exit velocity. Every in-depth analysis costs one credit; quick factual lookups and follow-up questions in the same thread do not.
The credit model is the practical differentiator. There is no subscription clock running: credits do not expire, and the free daily brief arrives every game-day morning at 9am regardless of credit balance. That brief is two lines — who starts, who sits, one action item — which means you get a daily floor of utility without spending anything. The weekly Monday report card summarizing record, standings, and top performer is also free.
The tool is deliberately not an autopilot. The vendor describes it as a co-manager rather than an agent: it offers reasoning and a take, but it cannot touch your lineup, submit waiver claims, or execute trades. Read-only access is enforced by design, and Yahoo credentials use OAuth tokens you can revoke independently. ESPN credentials are encrypted at rest. The friction this creates is intentional — you stay accountable for every move — but it also means the tool adds no value if your goal is hands-off automation.
Platform support is limited to Yahoo and ESPN. Managers on Sleeper, NFBC, Fantrax, or custom-hosted leagues can access a Draft Prep mode that delivers player rankings, ADP analysis, and Statcast scouting without a league connection, but the roster-aware, matchup-specific analysis that defines the core product is not available outside the two supported platforms.