A2A INTEGRATION · CUSTOM TOOL

Use GitDealFlow A2A with n8n

Visual workflow automation with AI nodes. Operators who prefer visual node-based pipelines over code.

Crunchbase API: $20K/yr. GitDealFlow A2A: free, no signup.

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.

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.

References

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.

Other framework integrations

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.