Otto AI x402 alternatives
12 MCP servers, A2A agents and x402 APIs that also do on-chain data, x402 paid apis, trading & markets, ranked by how much they overlap with Otto AI x402 (x402 paid API), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| Otto AI x402 (this one) | x402 paid API | Yes | 12 | 90/100 |
| ToolOracle | A2A agent | Yes | 10 | – |
| SYNTHORA — M2M Intelligence Mesh | A2A agent | Yes | 12 | – |
| Toolsmith | x402 paid API | Yes | 12 | 90/100 |
| api.agentstools.dev | x402 paid API | Yes | 12 | 80/100 |
| chelsea-hermes | A2A agent | Yes | 6 | – |
| Omni Terminal | x402 paid API | Yes | 3 | 90/100 |
| ClawFetch | x402 paid API | No | 8 | 90/100 |
| broke2built Data & Intelligence Skills | A2A agent | Yes | 12 | – |
| x402node | x402 paid API | Yes | 12 | 90/100 |
| Degenscan Intel | A2A agent | Yes | 24 | 90/100 |
| The Data Collector | MCP server | Yes | – | – |
| StableEnrich | x402 paid API | Yes | 12 | 90/100 |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- ToolOracle Live A2A
OracleNet is a mesh capability router for autonomous agents — not a product, not a marketplace, not a tool list. Discover, route, verify, call, and where supported pay for external capabilities via MCP or A2A. Settlemen…
A2A agent · FeedOracle Technologies · 10 skills · also does on-chain data, x402 paid apis, maps & travel
- SYNTHORA — M2M Intelligence Mesh Live A2A
SYNTHORA provides signed, pay-per-call intelligence products for autonomous agents over x402 on Base. The product list is generated from the current discoverable registry.
A2A agent · SYNTHORA · 12 skills · also does on-chain data, x402 paid apis, trading & markets
- Toolsmith Live x402
Keyless pay-per-call APIs for AI agents: 30 tools across compliance, trade, safety, web and data. Pay per call with USDC on Base via x402. No account, no API key.
x402 paid API · 12 endpoints · check 90/100 · also does x402 paid apis, social media, news
- api.agentstools.dev Live x402
Keyword news search across web news engines (Bing/DuckDuckGo/Yahoo via ddgs). Returns dated headlines with title/url/snippet/source/image + freshness/region/safesearch filters.
x402 paid API · 12 endpoints · check 80/100 · also does x402 paid apis, maps & travel, news
- chelsea-hermes Live A2A
Callable services for agents and humans: a rule-based code security scan (Python/JS, exact line numbers), travel-request parsing for agencies and BTC/ETH market data (daily candles and derivatives). Deterministic, no LL…
A2A agent · chelsea-hermes · 6 skills · also does on-chain data, trading & markets, social media
- Omni Terminal Live x402
Modern Hyperliquid trading terminal and dashboard with live execution, AI news, liquidation analytics, trader data, and an IBKR stocks and options private beta.
x402 paid API · 3 endpoints · check 90/100 · also does x402 paid apis, trading & markets, news
- ClawFetch x402
ClawFetch turns the open web into agent-ready data: stealth page fetching, headless JS rendering, structured extraction from 17 specialized sites (Twitter/X, GitHub, CoinGecko, Hacker News, YouTube, Wikipedia, npm, PyPI…
x402 paid API · 8 endpoints · check 90/100 · also does x402 paid apis, social media, news
- 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, news
- x402node Live x402
x402node — precise, deterministic developer and data tools for AI agents. Chain data, parsing, crypto, conversion. Pay-per-call over x402, settled in USDC on Base.
x402 paid API · 12 endpoints · check 90/100 · also does on-chain data, x402 paid apis, trading & markets
- Degenscan Intel Live A2A
Market-event intelligence and calibrated probability forecasts for AI trading agents: ~40 primary sources (SEC, Fed, Polymarket, Hyperliquid, on-chain) scored into per-asset impacts; token contract risk verdicts; public…
A2A agent · Marbella Collins LLC (Florida, USA) — contact@degenscan.io · 24 skills · check 90/100 · also does on-chain data, x402 paid apis, news
- The Data Collector Live MCP
Search Hacker News, Bluesky, and Substack from a single MCP interface
MCP server · io.github.MarcinDudekDev · also does social media, news
- StableEnrich Live x402
Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.
x402 paid API · 12 endpoints · check 90/100 · also does x402 paid apis, social media, maps & travel
All On-chain dataAll x402 paid APIsAll Trading & marketsAll Social mediaAll Maps & travelAll News