0xinsider
warningsapi.0xinsider.com
Read-only Polymarket sports and esports data: wallet grades on settled P&L, large trades, markets.
https://api.0xinsider.com/api/v1/mcpWebsiteOAuthMCP 2025-11-25v0.1.0last checked 2 Nov 2026spoke MCP on 100% of 92 checks (30 days)initialize in 198 msLast checked 2 Nov 2026
- ✓Answered the MCP handshake (MCP 2025-11-25)
- ✓Auth detected: OAuth
- ✓Lists 69 tools
- !1 warning
- ✓Spoke MCP on 92 of 92 checks (30 days)
Will my client connect?
Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.
✓Claude CodeConnects
The authorization server advertises RFC 7591 registration, so Claude Code can register itself and sign you in through the browser.
claude mcp add --transport http 0xinsider https://api.0xinsider.com/api/v1/mcpClaude Code docs · read on 2026-08-30
✓Claude (claude.ai & Desktop)Connects
The authorization server advertises RFC 7591 registration, so Claude (claude.ai & Desktop) can register itself and sign you in through the browser.
Settings → Connectors → Add custom connector, then paste https://api.0xinsider.com/api/v1/mcp.
Claude (claude.ai & Desktop) docs · read on 2026-08-30
✓ChatGPTConnects
The authorization server advertises RFC 7591 registration, so ChatGPT can register itself and sign you in through the browser.
Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://api.0xinsider.com/api/v1/mcp.
ChatGPT docs · read on 2026-08-30
✓CursorConnects
The authorization server advertises RFC 7591 registration, so Cursor can register itself and sign you in through the browser.
{
"mcpServers": {
"0xinsider": {
"url": "https://api.0xinsider.com/api/v1/mcp"
}
}
}Cursor docs · read on 2026-08-30
✓VS Code (Copilot)Connects
The authorization server advertises RFC 7591 registration, so VS Code (Copilot) can register itself and sign you in through the browser.
{
"servers": {
"0xinsider": {
"type": "http",
"url": "https://api.0xinsider.com/api/v1/mcp"
}
}
}VS Code (Copilot) docs · read on 2026-08-30
How to authenticate
Checked against the endpoint by our probe on 2 Nov 2026. These are the capabilities the server advertises, not a prediction about any particular client.
| Scheme | OAuth |
|---|---|
| Issuer | https://api.0xinsider.com |
| Dynamic client registration | ✓Advertised (RFC 7591) |
| Client ID Metadata Document | ✓Supported A client identifies itself by a URL to its own metadata, so no registration step is required. |
| PKCE | ✓S256 |
| Grant types | authorization_code, refresh_token, urn:ietf:params:oauth:grant-type:device_code |
| Scopes | read, webhooks, export, usage |
| Protected-resource metadata | ✓Published (RFC 9728) |
| Anonymous access | Handshake succeeds; 69 tools listable |
| Credentials demanded in prose | ✕get_edge_hunter, get_positions, get_webhook, get_pick_of_the_day, get_pick_of_the_day_ledger_entry, get_pick_of_the_day_archive, get_combo_fills, get_combos_summary, get_combo These tools are listed anonymously and their own descriptions ask for an account or key, but no challenge is issued — so a client has nothing to act on and the refusal arrives as a tool error. |
| Documentation | https://0xinsider.com/auth.md |
What the probe found
9 of the 69 tools listed anonymously say in their own descriptions that they need an account or a key (get_edge_hunter, get_positions, get_webhook, get_pick_of_the_day, get_pick_of_the_day_ledger_entry, get_pick_of_the_day_archive, get_combo_fills, get_combos_summary, get_combo), but the endpoint issued no WWW-Authenticate challenge. The requirement is stated only in prose, so a call reaches the tool and comes back as a tool error instead of an authorization step.
The server exposes a public surface before authorization: get_leaderboard, get_trader, batch_get_traders, get_large_trades, get_large_trade, get_large_trades_history, get_whale_trades, get_whale_trade, get_whale_trades_history, get_edge_hunter, list_games, get_game, list_game_markets, get_game_sharp_money, get_game_trades, get_game_holders, get_market_flow, batch_get_market_flow, get_market_intel, batch_get_market_intel, get_sharp_money_flows, get_smart_money_flows, get_market_snapshot, get_suspicious_trades, get_suspicious_trade, get_insider_radar, get_insider_radar_flag, get_positions, get_position_timeline, get_position_timeline_by_id, search_markets, search_content, explore_markets, get_event_replay_since, list_webhooks, get_webhook, get_daily_report_snapshot, get_weekly_report_snapshot, get_monthly_report_snapshot, get_resolution_report, get_report, get_trader_export_snapshot, get_coverage, get_platforms, get_usage, get_account, get_large_positions, get_trending_wallets, get_leaderboard_leagues, get_sport_leaderboard, list_category_leaders, get_category_leaderboard, get_trader_pnl, get_pick_of_the_day, get_pick_of_the_day_ledger_entry, get_pick_of_the_day_archive, get_pick_of_the_day_stats, get_trader_context, get_trader_categories, get_trader_grade_at, get_market_holders, get_market_top_holders, get_market_candles, get_market_wallets_in_out, get_combo_fills, get_combos_summary, get_combo, get_large_trade_counterparty_executions, get_large_trade_counterparty_makers.
Neither the reserved <endpoint>/server-card location nor the domain's /.well-known/ai-catalog.json describes this endpoint (SEP-2127), so a client that discovers servers by domain will not find it.
Tools
Contract history
Breaking: get_edge_hunter, search_markets
Instructions rewritten: get_game, get_large_trades, get_large_trades_history, get_leaderboard, get_market_holders, get_sharp_money_flows, get_smart_money_flows, get_whale_trades, get_whale_trades_history, list_games, search_markets. The description an agent follows changed; the callable contract may not have.
Breaking: get_game, list_games
Instructions rewritten: get_market_holders, get_trader_context. The description an agent follows changed; the callable contract may not have.
Breaking: get_combo_fills, get_event_replay_since, get_pick_of_the_day
Breaking: get_edge_hunter
Instructions rewritten: get_trader_context. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_trader_context. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: batch_get_traders, get_trader. The description an agent follows changed; the callable contract may not have.
Breaking: batch_get_traders, get_leaderboard, get_trader, get_trader_context
Instructions rewritten: batch_get_market_intel, explore_markets, get_coverage, get_insider_radar, get_insider_radar_flag, get_large_trade, get_large_trades, get_large_trades_history, get_leaderboard, get_market_intel, get_platforms, get_sharp_money_flows, get_smart_money_flows, get_whale_trade, get_whale_trades, get_whale_trades_history. The description an agent follows changed; the callable contract may not have.
Breaking: get_trader_pnl
Instructions rewritten: get_trader_pnl, get_trending_wallets. The description an agent follows changed; the callable contract may not have.
Breaking: get_pick_of_the_day, get_pick_of_the_day_archive
Instructions rewritten: get_pick_of_the_day, get_pick_of_the_day_archive. The description an agent follows changed; the callable contract may not have.
Breaking: batch_get_market_flow, batch_get_market_intel, batch_get_traders, get_large_trade, get_large_trade_counterparty_executions, get_whale_trade
Breaking: get_edge_hunter, get_pick_of_the_day, get_pick_of_the_day_ledger_entry, get_trader_export_snapshot
Breaking: get_edge_hunter, get_pick_of_the_day
Instructions rewritten: explore_markets, get_edge_hunter, get_trader_pnl. The description an agent follows changed; the callable contract may not have.
Breaking: batch_get_market_flow, batch_get_market_intel, batch_get_traders
Breaking: get_pick_of_the_day, get_pick_of_the_day_archive
Instructions rewritten: get_pick_of_the_day, get_pick_of_the_day_archive. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_market_snapshot, get_trader. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_edge_hunter, get_pick_of_the_day. The description an agent follows changed; the callable contract may not have.
Breaking: get_edge_hunter
Instructions rewritten: get_edge_hunter. The description an agent follows changed; the callable contract may not have.
Breaking: get_edge_hunter
Instructions rewritten: get_edge_hunter. The description an agent follows changed; the callable contract may not have.
Breaking: batch_get_market_flow, batch_get_market_intel, batch_get_traders, get_pre_game_side_observations, get_pre_game_sides, get_sports_edge_observations, get_sports_edge_signals
Instructions rewritten: list_games. The description an agent follows changed; the callable contract may not have.
Breaking: batch_get_market_flow, batch_get_market_intel, batch_get_traders
Instructions rewritten: get_position_timeline, get_pre_game_side_observations, get_pre_game_sides, get_sports_edge_observations, get_sports_edge_signals. The description an agent follows changed; the callable contract may not have.
Breaking: get_pre_game_side_observations, get_sports_edge_observations
Breaking: batch_get_market_flow, batch_get_market_intel, explore_markets, get_daily_report_snapshot, get_event_replay_since, get_large_trade, get_large_trades, get_large_trades_history, get_market_flow, get_market_intel, get_monthly_report_snapshot, get_pre_game_sides, get_report, get_sharp_money_flows, get_smart_money_flows, get_sports_edge_signals, get_weekly_report_snapshot, get_whale_trade, get_whale_trades, get_whale_trades_history, search_markets
Breaking: get_pick_of_the_day
Breaking: get_pick_of_the_day, get_pick_of_the_day_archive
Instructions rewritten: get_pick_of_the_day, get_pick_of_the_day_archive. The description an agent follows changed; the callable contract may not have.
Breaking: get_pick_of_the_day
Instructions rewritten: get_pick_of_the_day, get_pick_of_the_day_archive. The description an agent follows changed; the callable contract may not have.
Breaking: get_market_snapshot, get_pick_of_the_day, get_pick_of_the_day_archive, get_pick_of_the_day_ledger_entry
Instructions rewritten: get_leaderboard, get_pick_of_the_day, get_pick_of_the_day_archive. The description an agent follows changed; the callable contract may not have.
Breaking: get_pick_of_the_day
Instructions rewritten: get_pick_of_the_day. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_large_trades, get_whale_trades. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_coverage, get_platforms, get_trader. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_pick_of_the_day. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: batch_get_traders, get_large_trades, get_large_trades_history, get_positions, get_trader_pnl, get_whale_trades, get_whale_trades_history. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: batch_get_market_intel, batch_get_traders, get_event_replay_since, get_large_trades, get_large_trades_history, get_market_intel, get_pick_of_the_day, get_platforms, get_positions, get_sharp_money_flows, get_smart_money_flows, get_trader, get_whale_trades, get_whale_trades_history, search_markets. The description an agent follows changed; the callable contract may not have.
Breaking: get_leaderboard
Instructions rewritten: explore_markets, get_event_replay_since, get_leaderboard, get_platforms, get_sports_edge_observations, get_sports_edge_signals, get_whale_trade, get_whale_trades, get_whale_trades_history. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_insider_radar, get_insider_radar_flag, get_platforms. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_event_replay_since, get_whale_trade, get_whale_trades, get_whale_trades_history. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_insider_radar. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_event_replay_since, get_pick_of_the_day, get_pick_of_the_day_archive, search_markets. The description an agent follows changed; the callable contract may not have.
Instructions rewritten: get_positions. The description an agent follows changed; the callable contract may not have.
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