Polymarket Data by PolymarketScan alternatives
12 MCP servers, A2A agents and x402 APIs that also do on-chain data, trading & markets, ranked by how much they overlap with Polymarket Data by PolymarketScan (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| Polymarket Data by PolymarketScan (this one) | MCP server | Yes | – | 55/100 |
| backtesting-arena | MCP server | Yes | – | – |
| Baron Power Play | MCP server | Yes | – | – |
| Coin Railz (travis-kellogg1) | MCP server | Yes | – | – |
| Crank Protocol | MCP server | Yes | – | – |
| The STALL (thebrierfox) | MCP server | Yes | – | – |
| Apex Forge Commerce Node | A2A agent | Yes | 11 | 90/100 |
| Arkham x402 | x402 paid API | Yes | 5 | 90/100 |
| Bounty Engineer Autonomous Mission Commerce | A2A agent | Yes | 24 | 90/100 |
| Coin Railz | A2A agent | Yes | 24 | 90/100 |
| CoinCap API | x402 paid API | Yes | 11 | 90/100 |
| OneSource | x402 paid API | Yes | 12 | 90/100 |
| Ops Control HQ Utility Agent | A2A agent | Yes | 20 | 90/100 |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- backtesting-arena Live MCP
Quantitative crypto backtesting & Bitcoin market-regime analytics. 73 MCP tools: honest look-ahead-aware backtest validation with Deflated-Sharpe-Ratio correction, point-in-time 10-indicator Bitcoin cycle scoring, macro…
MCP server · info-6d0w · also does on-chain data, trading & markets
- Baron Power Play Live MCP
Pay-per-call AI infra for agents: DeFi market data, LLM inference, STT/TTS. x402 v2, USDC on Base.
MCP server · io.github.MintMachineHQ · also does on-chain data, trading & markets
- Coin Railz (travis-kellogg1) Live MCP
63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or…
MCP server · travis-kellogg1 · also does on-chain data, trading & markets
- Crank Protocol Live MCP
Non-custodial DeFi tools for AI agents on Solana: swaps, perps, lending, staking, equities.
MCP server · ing.crank · also does on-chain data, trading & markets
- The STALL (thebrierfox) Live MCP
293 AI-callable finance and data tools over MCP. No API keys required. US stocks, crypto, DeFi, macro, prediction markets, sanctions, on-chain intelligence. x402 USDC pay-per-call on Base. Built by IntuiTek1.
MCP server · thebrierfox · also does on-chain data, trading & markets
- Apex Forge Commerce Node Live A2A
x402-paid machine services on Base + Solana USDC: security audit verdicts, token/contract heuristic risk screens, release preflight, corpus search, routed LLM inference, live perp market data (funding/basis), lane healt…
A2A agent · NONSYNTHETIC · 11 skills · check 90/100 · also does on-chain data, trading & markets
- Arkham x402 Live x402
Pay-per-request Arkham wallet intelligence and market data API protected by x402.
x402 paid API · 5 endpoints · check 90/100 · also does on-chain data, trading & markets
- Bounty Engineer Autonomous Mission Commerce Live A2A
Machine-buyable infrastructure for autonomous agents: premium multi-agent Mission Control, subcontractor mesh compilation, mission digital twins, failure-cost firewall and run forensics, plus provider routing, spend con…
A2A agent · Bounty Engineer · 24 skills · check 90/100 · also does on-chain data, trading & markets
- Coin Railz Live A2A
Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.
A2A agent · Coin Railz · 24 skills · check 90/100 · also does on-chain data, trading & markets
- CoinCap API Live x402
CoinCap gives AI agents, apps, and developers real-time cryptocurrency market data. Two ways to access: - **API key** — sign up at https://coincap.io and pass `Authorization: Bearer <key>` or `?apiKey=<key>`. - **Keyles…
x402 paid API · 11 endpoints · check 90/100 · also does on-chain data, trading & markets
- OneSource Live x402
OneSource - three data families for AI agents on one host: Ethereum mainnet, Sepolia testnet, and Robinhood Chain RPC (served from OneSource-operated nodes), plus Deepstate on-chain market data (order books, trades, can…
x402 paid API · 12 endpoints · check 90/100 · also does on-chain data, trading & markets
- Ops Control HQ Utility Agent Live A2A
Agent utility gateway with a free read-only Panta SignalDeck market-intelligence feed plus machine-payable x402 tools for npm package health and vulnerability intelligence, technical SEO audits, DNS and batch DMARC look…
A2A agent · Ops Control HQ · 20 skills · check 90/100 · also does on-chain data, trading & markets