agent-tools (x402 + MCP + A2A directory) alternatives
12 MCP servers, A2A agents and x402 APIs that also do x402 paid apis, agent infrastructure, ranked by how much they overlap with agent-tools (x402 + MCP + A2A directory) (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| agent-tools (x402 + MCP + A2A directory) (this one) | MCP server | Yes | – | – |
| AgentNDX | MCP server | Yes | – | – |
| ANAMIZED Desk | MCP server | Yes | – | – |
| Agent Checkup by OpenGlass | A2A agent | Yes | 1 | 90/100 |
| Agent Economy OS 2047 — A2A Commerce Directory | A2A agent | Yes | 5 | 90/100 |
| Agentropolis | A2A agent | Yes | 3 | 90/100 |
| Axiom Agentic Tools | MCP server | Yes | 9 | 90/100 |
| Creator Desk Machine Distribution | A2A agent | Yes | 2 | 90/100 |
| Overwing | MCP server | Yes | 40 | 90/100 |
| Chit402 | x402 paid API | Yes | 1 | 89/100 |
| Wild Wallet — where agents get a body | MCP server | Yes | 6 | 80/100 |
| SAP MCP Server | MCP server | Yes | – | 65/100 |
| AAAA-Nexus | A2A agent | Yes | 12 | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- 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, agent infrastructure
- ANAMIZED Desk Live MCP
Agent floor and MCP market: catalog, rack, Stripe checkout, x402, A2A.
MCP server · io.github.ANAMIZED · also does x402 paid apis, agent infrastructure
- Agent Checkup by OpenGlass Live A2A
Checks an A2A agent from the outside and tells you what to fix. Give it an agent-card URL or a domain. It fetches the agent card and validates it against the current A2A schema, sends the agent one harmless test message…
A2A agent · OpenGlass · 1 skill · check 90/100 · also does x402 paid apis, agent infrastructure
- Agent Economy OS 2047 — A2A Commerce Directory Live A2A
Public A2A discovery assistant for AI agents that want to discover four experimental x402 services on Base: pre-action policy checks, owner-signed spending rules and public USDC transfer receipt evidence. This directory…
A2A agent · Agent Economy OS 2047 · 5 skills · check 90/100 · also does x402 paid apis, agent infrastructure
- Agentropolis Live A2A
Search engine for agent-usable tools: MCP servers, x402/MPP paid APIs, A2A agents and kits, with payment-verified trust scores and honest badges (Verified, Live-Tested, Trusted auto-computed; Agentropolis Pro is a label…
A2A agent · Agentropolis · 3 skills · check 90/100 · also does x402 paid apis, agent infrastructure
- Axiom Agentic Tools Live MCP
x402-paid Base agent tools (USDC). 5 deterministic tools. No API keys. No NFT pass.
MCP server · io.github.0xAxiom · 9 tools · check 90/100 · also does x402 paid apis, agent infrastructure
- Creator Desk Machine Distribution Live A2A
Evidence-backed x402, MCP and A2A distribution service that audits machine discovery, repairs metadata and purchase-path gaps, submits eligible listings, and verifies public read-back.
A2A agent · Creator Desk AI · 2 skills · check 90/100 · also does x402 paid apis, agent infrastructure
- Overwing Live MCP
Guardrails for LLM output: pass / fail / review verdicts and one recommended action. Hosted or npm.
MCP server · ai.overwing · 40 tools · check 90/100 · also does x402 paid apis, agent infrastructure
- Chit402 Live x402
Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk for agent spend — export, policy, evidence. Possession book for principals. POST /v1/chat/completions retur…
x402 paid API · 1 endpoint · check 89/100 · also does x402 paid apis, agent infrastructure
- Wild Wallet — where agents get a body Live MCP
Agents browse Wild Wallet bodies + closets and file human-approved merge requests.
MCP server · io.github.MCFLAMINGO · 6 tools · check 80/100 · also does x402 paid apis, agent infrastructure
- SAP MCP Server Live MCP
Solana-native MCP gateway for SAP, DeFi tools, SNS identity, and x402 payments.
MCP server · ai.oobeprotocol.sap.mcp · check 65/100 · also does x402 paid apis, agent infrastructure
- AAAA-Nexus Live A2A
Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, discovery, and x402 USDC micropayments on Base L2. Deterministic pre-action author…
A2A agent · Atomadic Tech · 12 skills · also does x402 paid apis, agent infrastructure