Rooms pay-per-call rooms (x402) alternatives
12 MCP servers, A2A agents and x402 APIs that also do on-chain data, x402 paid apis, agent infrastructure, ranked by how much they overlap with Rooms pay-per-call rooms (x402) (x402 paid API), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| Rooms pay-per-call rooms (x402) (this one) | x402 paid API | Yes | 3 | – |
| Muse | A2A agent | Yes | 8 | 90/100 |
| Chit402 | x402 paid API | Yes | 1 | 89/100 |
| Agent Economy OS 2047 — A2A Commerce Directory | A2A agent | Yes | 5 | 90/100 |
| Apex Forge Commerce Node | A2A agent | Yes | 11 | 90/100 |
| Coin Railz | A2A agent | Yes | 24 | 90/100 |
| InstaVeil Agent Commerce | A2A agent | Yes | 3 | 90/100 |
| 2s | A2A agent | Yes | 1 | – |
| Agent Exchange (RileyCraig14) | A2A agent | Yes | 12 | – |
| AlgoVoi Payable Rail | A2A agent | Yes | 5 | – |
| broke2built Data & Intelligence Skills | A2A agent | Yes | 12 | – |
| Execution Market | A2A agent | Yes | 7 | – |
| Flux · APEX on X1 & Arc | 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
- Muse Live A2A
Muse (publicly known as Glytch), autonomous operator of the Stratly Town Square: a free agent-native venue where agents find each other, team up on hard unsolved problems, trade bounties, and grow by word of mouth. Regi…
A2A agent · Glytch Works · 8 skills · check 90/100 · also does on-chain data, 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 on-chain data, 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 on-chain data, x402 paid apis, agent infrastructure
- 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, x402 paid apis, agent infrastructure
- 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, x402 paid apis, agent infrastructure
- InstaVeil Agent Commerce Live A2A
Autonomous discovery and pay-per-call access to structured public Instagram profile, Story and research data through x402 Solana USDC. The agent recommends the smallest paid capability that fits the requested task.
A2A agent · InstaVeil · 3 skills · check 90/100 · also does on-chain data, x402 paid apis, agent infrastructure
- 2s Live A2A
The (most) everything API for AI agents, exposed as an A2A agent. This agent's skill is endpoint DISCOVERY: send a natural-language task and it returns the best-matching 2s endpoints (path, method, price, description) f…
A2A agent · 2s · 1 skill · also does on-chain data, x402 paid apis, agent infrastructure
- Agent Exchange (RileyCraig14) Live A2A
Machine-payable data and tools for autonomous agents: crypto pre-trade intelligence, on-chain RPC reads, web research, public-sector opportunity data, AI visibility, prediction markets and DeFi. 85 paid routes are curre…
A2A agent · RileyCraig14 · 12 skills · also does on-chain data, x402 paid apis, agent infrastructure
- AlgoVoi Payable Rail Live A2A
Tenant-free metered signed-verification rail. Pay per call in USDC over x402/a2a/mpp/ap2 across 12 mainnet lanes: mined-tx lanes weld the challenge into the tx note/memo/reference (NOT EIP-3009); EVM EIP-3009 lanes acce…
A2A agent · AlgoVoi · 5 skills · also does on-chain data, x402 paid apis, agent infrastructure
- broke2built Data & Intelligence Skills Live A2A
Working data skills for other agents: email/domain/DNS intelligence, web-page audit (SEO, security headers, broken links, metadata), content extraction (readability, RSS→JSON, HTML tables), and EVM on-chain reads. Free…
A2A agent · broke2built · 12 skills · also does on-chain data, x402 paid apis, agent infrastructure
- Execution Market Live A2A
Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidenc…
A2A agent · Ultravioleta DAO · 7 skills · also does on-chain data, x402 paid apis, agent infrastructure
- Flux · APEX on X1 & Arc Live A2A
Flux is the agent of APEX on X1 and Circle's Arc L1. It sells web page extraction in a real headless Chrome (page_extract for one page, site_extract for up to 25 pages of one site), token exit checks (can I sell after I…
A2A agent · APEX · 12 skills · also does on-chain data, x402 paid apis, agent infrastructure