docs: Add Spraay batch payment tools to third-party catalog

docs/tools/third-party/spraay.md

@@ -0,0 +1,109 @@
+# Spraay
+
+[Spraay](https://spraay.app) is a multi-chain batch payment protocol that enables
+AI agents to send ETH or any ERC-20 token to up to 200+ recipients in a single
+transaction, with ~80% gas savings compared to individual transfers. Spraay is
+deployed across multiple chains including Base, Arbitrum, Unichain, Plasma, BOB,
+and Bittensor.
+
+Spraay provides both an **MCP server** for tool-based integration and
+**community tools** via the
+[adk-python-community](https://github.com/google/adk-python-community) package.
+
+## Use Cases
+
+- **Payroll**: Pay team members in ETH or stablecoins in one transaction
+- **Airdrops**: Distribute tokens to community members efficiently
+- **Bounties**: Send rewards to multiple contributors at once
+- **Revenue sharing**: Split payments across stakeholders
+
+## Integration via MCP Server
+
+Spraay's MCP server connects to the
+[Spraay x402 Gateway](https://gateway.spraay.app), providing 9 paid endpoints
+for batch payments, token prices, wallet balances, swap quotes, and more. Agents
+pay per call in USDC via the Coinbase x402 protocol — no API keys or accounts
+needed.
+
+### Setup
+
+Install the Spraay MCP server:
+
+```bash
+npm install -g spraay-x402-mcp
+```
+
+Or clone from GitHub:
+
+```bash
+git clone https://github.com/plagtech/spraay-x402-mcp.git
+```
+
+### Usage with ADK
+
+```python
+from google.adk.agents import Agent
+from google.adk.tools.mcp_tool.mcp_toolset import MCPToolset
+from google.adk.tools.mcp_tool.mcp_session_manager import StdioConnectionParams
+
+root_agent = Agent(
+    model="gemini-2.5-flash",
+    name="payment_agent",
+    instruction="""You are a payment assistant that helps users send
+    batch cryptocurrency payments using Spraay. You can also check
+    token prices, wallet balances, and get swap quotes on Base.""",
+    tools=[
+        MCPToolset(
+            connection_params=StdioConnectionParams(
+                server_command="npx",
+                server_args=["spraay-x402-mcp"],
+            ),
+        )
+    ],
+)
+```
+
+### Available MCP Tools
+
+| Tool | Cost | Description |
+|---|---|---|
+| `spraay_batch_execute` | $0.01 | Batch payments (any ERC-20 + ETH) |
+| `spraay_prices` | $0.002 | Live onchain token prices |
+| `spraay_balances` | $0.002 | ETH + ERC-20 balances |
+| `spraay_resolve` | $0.001 | ENS & Basename resolution |
+| `spraay_swap_quote` | $0.002 | Uniswap V3 swap quotes |
+| `spraay_chat` | $0.005 | AI chat via 200+ models |
+| `spraay_models` | $0.001 | Available AI models |
+| `spraay_tokens` | $0.001 | Supported token list |
+| `spraay_gas` | $0.001 | Gas estimation |
+
+## Integration via Community Tools
+
+Spraay also provides native ADK function tools via the `google-adk-community`
+package. See the
+[adk-python-community contribution](https://github.com/google/adk-python-community)
+for details.
+
+```python
+from google.adk.agents import Agent
+from google.adk_community.tools.spraay import (
+    spraay_batch_eth,
+    spraay_batch_token,
+)
+
+agent = Agent(
+    model="gemini-2.5-flash",
+    name="payment_agent",
+    tools=[spraay_batch_eth, spraay_batch_token],
+)
+```
+
+## Resources
+
+- **Website**: [spraay.app](https://spraay.app)
+- **MCP Server**: [github.com/plagtech/spraay-x402-mcp](https://github.com/plagtech/spraay-x402-mcp)
+- **Gateway**: [gateway.spraay.app](https://gateway.spraay.app)
+- **Listed on**: [Smithery](https://smithery.ai) ·
+  [MCP.so](https://mcp.so) ·
+  [LobeHub](https://lobehub.com) ·
+  [x402.org/ecosystem](https://x402.org/ecosystem)

mkdocs.yml

@@ -196,6 +196,7 @@ plugins:
         'tools/third-party/qdrant.md': 'integrations/qdrant.md'
         'tools/google-cloud/spanner.md': 'integrations/spanner.md'
         'tools/third-party/stripe.md': 'integrations/stripe.md'
+        'tools/third-party/spraay.md': 'integrations/spraay.md'
         'tools/google-cloud/vertex-ai-rag-engine.md': 'integrations/vertex-ai-rag-engine.md'
         'tools/google-cloud/vertex-ai-search.md': 'integrations/vertex-ai-search.md'
         'tools/index.md': 'integrations/index.md'