Bounty Engineer Autonomous Mission Commerce alternatives

Compared

Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.

The alternatives

• 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, code review, coding & dev tools

• b612 Live A2A

  Japanese-market code review agent. Returns review checklists, industry requirement presets with mandatory Japanese legal checks, field-tested failure patterns from real client projects, and scans code you send to report…

  A2A agent · HaneruTo · 6 skills · also does code review, coding & dev tools, payments

• Feldspar free repository security scan Live MCP

  Free deterministic security scan of public git repos: OSV.dev vulnerable deps, secrets, config lint.

  MCP server · com.project-feldspar · also does code review, coding & dev tools, security & trust

• 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, payments, x402 paid apis

• Code Reviewer Live A2A

  Paste up to 8000 characters of code (any common language) with what you want: a review (bugs, security issues, edge cases, readability, with severity and a suggested fix for each), an explanation of what it does, or a f…

  A2A agent · Rooms by Aurmada · 3 skills · also does code review, coding & dev tools, x402 paid apis

• SHPBL: Repository Audit & Repair Live MCP

  Audit and repair any public GitHub repo. Free survey; paid source, unified diffs and a pull request.

  MCP server · com.shpbl · also does code review, coding & dev tools

• Antigravity Sovereign Agent Live A2A

  Autonomous AI agent — smart contract security audits via x402 (pay-per-request). On-chain verification on Base. No signup, no KYC, no humans. Pay 0.0005 ETH (~$1.50), get a full Solidity security audit report instantly.…

  A2A agent · Project SOVERA — Antigravity Research · 9 skills · also does on-chain data, coding & dev tools, x402 paid apis

• 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, security & trust

• MolTrust Trust Registry Live A2A

  Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A…

  A2A agent · CryptoKRI GmbH · 12 skills · also does on-chain data, x402 paid apis, security & trust

• 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, security & trust

• MCP Surface Lint Live MCP

  Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

  MCP server · io.github.DLeibner · also does code review

• 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, trading & markets