Use GitDealFlow A2A with n8n

n8n's HTTP Request node hits our A2A endpoint with zero code. Drop one node, paste the JSON-RPC body, wire to a Send Email or Slack node downstream. Works as a no-code path to all five skills, and the AI Agent node can call A2A as a tool when you want LLM-driven branching.

Endpoint facts for n8n users

Whatever wiring you choose, the target is the same single endpoint. These are the fixed facts; nothing on this page changes them:

HTTP Request node

// n8n HTTP Request node config:
// Method: POST
// URL: https://signals.gitdealflow.com/api/a2a
// Authentication: None
// Headers: Content-Type = application/json
// Body (JSON):
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "message/send",
  "params": {
    "message": {
      "role": "user",
      "parts": [
        { "kind": "data", "data": { "skill": "get_trending_startups" } }
      ]
    }
  }
}

// Wire output to Set node to extract:
//   {{ $json.result.artifacts[0].parts[0].data.startups }}

AI Agent node with A2A as tool

// In n8n's AI Agent node, add a Custom Tool:
//   Name: gitdealflow_query
//   Description: "VC engineering signals."
//   Schema: { skill: string, args: object }
//   Code: HTTP request to https://signals.gitdealflow.com/api/a2a with body templated from inputs.
// The agent will pick when to call it based on user message.

What you can ask

• Cron trigger → HTTP node → email node = weekly digest, no code.
• Webhook trigger from your CRM → A2A lookup → enrich CRM record.
• AI Agent node decides when to query GitDealFlow vs SerpAPI.
• Discord trigger 'is /name trending?' → A2A → reply.

Gotchas

• n8n cloud has a default 30s HTTP timeout, our endpoint usually returns in <500ms but spike up the timeout for batch loops.
• If you template the JSON body, escape user input, n8n expressions don't auto-escape strings.

When to pick which path

Because n8n currently lacks a native MCP client, your two options are the custom tool below (a thin JSON-RPC wrapper you register once) or switching the session to an MCP-capable host when you need the richer tool surface. For scheduled jobs and pipelines, the raw endpoint is usually the sturdier dependency: no client versioning to track.

4example prompts are listed under "What you can ask" below, and the gotchas section covers the 2 known failure modes n8n users hit with this endpoint. If a prompt fails, check the gotchas first: most misses are shape mismatches, not endpoint outages.

References

• n8n HTTP Request docs
• Our AgentCard
• Our AgentCard (JSON)
• Methodology paper (SSRN abstract=6606558)

Try it without setup

The interactive playground lets you send live JSON-RPC requests against the A2A endpoint with no install, no auth. Pick a skill, hit send, see the response.

Full launch story: I made my VC deal flow callable by Claude.

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