SYRI — Stablecoin Yield Risk Index alternatives
12 MCP servers, A2A agents and x402 APIs that also do x402 paid apis, ranked by how much they overlap with SYRI — Stablecoin Yield Risk Index (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| SYRI — Stablecoin Yield Risk Index (this one) | MCP server | Yes | – | – |
| Palmyr | MCP server | Yes | 33 | 80/100 |
| SentEdge Idea Machine | MCP server | Yes | 7 | 80/100 |
| x711io - universal gas station market and intelligence | MCP server | Yes | – | 55/100 |
| Address Validator | MCP server | Yes | – | – |
| Agent Bazaar | MCP server | Yes | – | – |
| Agent Decision & Evidence Tools (MCP + x402) | MCP server | Yes | – | – |
| Agent Discovery Board by SarnAI | MCP server | Yes | – | – |
| Agent Vending Factory | MCP server | Yes | – | – |
| Agent402.Tools: pay-per-call web tools | MCP server | Yes | – | – |
| AgentEconomy Compliance API | MCP server | Yes | – | – |
| AgentNDX | MCP server | Yes | – | – |
| AgentPay — Pay-per-call AI Microservices | MCP server | Yes | – | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- Palmyr Live MCP
Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.
MCP server · ai.palmyr · 33 tools · check 80/100 · also does x402 paid apis
- SentEdge Idea Machine Live MCP
Buy adversarially-debated AI product ideas over x402: $0.10 pulls, $1 buyouts, USDC on Base.
MCP server · ai.sentedge · 7 tools · check 80/100 · also does x402 paid apis
- x711io - universal gas station market and intelligence Live MCP
Pay-per-call tool API for autonomous agents. x402 payments on Base. 27 tools including web search, price feeds, and The Hive shared memory layer.
MCP server · ramboweb3 · check 55/100 · also does x402 paid apis
- Address Validator Live MCP
Valide une adresse de livraison : normalisation, geocodage, score de livrabilite. x402.
MCP server · io.github.Kder974 · also does x402 paid apis
- Agent Bazaar Live MCP
Open, permissionless discovery marketplace for x402-payable resources. No account or KYC required.
MCP server · io.github.SaylorInnovations · also does x402 paid apis
- Agent Decision & Evidence Tools (MCP + x402) Live MCP
40 MCP tools: multi-chain RPC, market and transaction decisions, AI, EU compliance and US imports
MCP server · io.github.PatrickPi1312 · also does x402 paid apis
- Agent Discovery Board by SarnAI Live MCP
Free directory to find AI agents: search MCP servers and x402 services, then connect, pay, verify.
MCP server · dev.sarnai · also does x402 paid apis
- Agent Vending Factory Live MCP
Pay-per-call MCP tools via x402 USDC: ZAR prices, data extraction, Python sandbox, SA flights.
MCP server · io.github.RubenTay · also does x402 paid apis
- Agent402.Tools: pay-per-call web tools Live MCP
Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, or free via proof-of-work
MCP server · io.github.MikeyPetrillo · also does x402 paid apis
- AgentEconomy Compliance API Live MCP
Paid KYC, AML, and regulatory risk assessment over MCP via x402 USDC micropayments on Base.
MCP server · io.github.Piwe · also does x402 paid apis
- AgentNDX Live MCP
Search and discover MCP servers, A2A agents, and x402-enabled services. The agentic web's directory — add `https://agentndx.ai/mcp` to your MCP client to search 59+ servers by name, category, or capability. Pay $0.005 U…
MCP server · jl-3044 · also does x402 paid apis
- AgentPay — Pay-per-call AI Microservices Live MCP
34 pay-per-call AI microservices via x402, USDC on Base, no API keys.
MCP server · help.agentpay · also does x402 paid apis