10 actions in 7 pieces of software · ranked by words, meaning and measured trust · 648 ms

1. 1Signal402 Payment Guardfound in code, not yet checkedno passport yet
   • submit_wallet_payment

     Attach a payment payload signed outside this server. Signal402 never receives or stores a private key.

   • execute_payment

     Verify a signed payment, retry the protected resource request, validate the receipt, and return the result.

2. 2Signal Nodus SEC Filingsfound in code, not yet checkedno passport yet
   • x402_audit

     Inspect one public HTTPS x402 endpoint and report the 402 challenge it returns to an anonymous caller: HTTP status,

3. 3signal402-mcpfound in code, not yet checkedno passport yet
   • signal402_call

     Call any x402 service and pay automatically. Your wallet pays the service directly — Signal402 is not in the payment path. Use signal402_recommend first to find the right service, then call it here.

   • signal402_probe

     Check if an x402 service is alive and accepting payments right now. Returns health status, response time, live pricing, and catalog price comparison. Cached 5 min. Costs $0.01 via x402.

4. 4YieldAgentX402verified and signedpassport

   agentrecord

   • JingSwap Spread Signal

     Internal: JingSwapSpreadSignal JSON (spread / peg / DLMM signals).

5. 5NEXUS Intelligence APIverified and signedpassport

   MCP serverrecord

   • market_signal_fast

     FAST momentum signal (Coingecko 24h). $0.02 USDC x402. No Claude latency.

   • market_signal

     Full AI market signal with confidence. $0.05 USDC x402.

6. 6io.github.JessieJanie/skim402found in code, not yet checkedno passport yet
   • poll_signal

     Poll a Skim Signal feed and return the latest structured items (title, summary, source, timestamp, link, entities). 2 credits per successful poll; failed polls are refunded. Card lane: GET /api/t/signal/{slug}/latest?limit= (filters: forms, categories, fields, states, committees). The x402 ecosystem

7. 7draconic21 Daily Agent Signalverified and signedpassport

   agentrecord

   • Signal Topic Trace

     One thread's dated path across editions; no match is a free 404. $0.06 USDC on Base via x402. e.g. POST https://draconic21-x402-api.onrender.com/v1/signal_topic_trace {"id":"<signal id>"} after GET /health