List available cross-chain bridge tools via a pay-per-call DeFi intelligence API.
What it does
The `/defi/bridge/tools` endpoint is part of the DeFi Intelligence API hosted at defi.hugen.tokyo. It returns the set of bridge tools (e.g., Stargate) available for cross-chain asset transfers. The endpoint requires no query parameters — a simple GET request returns the supported bridge tool list. Payment is handled via the x402 protocol at $0.01 USDC per call on Base; no API key or account setup is needed.
This endpoint belongs to a broader suite of 26 DeFi security and data endpoints covering token audits, rugpull detection, phishing checks, NFT security, bridge routing (quotes, routes, status, chains, tokens, tools), gas prices, protocol analytics (TVL, fees, info), token prices, stablecoin data, DEX volume, transaction simulation, and more. All endpoints are pay-per-call via x402. Alternative access methods include a broker API (with a free API key and $0.05 credit), an MCP server at mcp.hugen.tokyo, and a Python SDK (`x402-pay`).
The API is documented via an OpenAPI 3.1 spec available at `/openapi.json` and a Swagger UI at `/docs`. Response schemas for individual endpoints are not detailed in the spec (they use empty `schema: {}`), so the exact shape of the bridge tools response must be discovered at runtime. The x402 challenge confirms the endpoint is live and lists Stargate as a bridge and 1inch as an exchange in its sample data.
Capabilities
Use cases
- —Enumerate available bridge providers before requesting a cross-chain quote
- —Build a UI selector showing which bridges a user can route through
- —Agent-driven bridge selection: query tools, then pick optimal route
- —Monitor which bridge integrations are currently supported by the API
- —Pre-flight check for bridge availability before constructing a swap transaction
Fit
Best for
- —AI agents that need to discover available cross-chain bridge options programmatically
- —DeFi dashboards displaying supported bridge providers
- —Automated trading bots selecting optimal bridge routes
Not for
- —Executing actual bridge transactions (this only lists tools, not executes)
- —Free or high-volume bulk data scraping (each call costs $0.01)
- —Non-crypto applications with no need for bridge infrastructure data
Quick start
# Using the x402-pay Python SDK
pip install x402-pay
import x402_pay
response = x402_pay.get('https://defi.hugen.tokyo/defi/bridge/tools')
print(response.json())Example
Response
{
"bridges": [
{
"key": "stargate",
"name": "Stargate"
}
],
"exchanges": [
{
"key": "1inch",
"name": "1inch"
}
]
}Endpoint
Quality
The endpoint is live (402 challenge confirmed) with a full OpenAPI 3.1 spec covering all 26 endpoints. However, individual response schemas are empty (no typed output), there are no example responses in the spec, and no dedicated documentation pages beyond the Swagger UI. The example response is inferred from the x402 challenge payload, not from an actual 200 response.
Warnings
- —Response schema for /defi/bridge/tools is empty in the OpenAPI spec — actual response shape must be discovered at runtime.
- —Example response is inferred from the x402 challenge metadata, not from a confirmed 200 response.
- —Root URL returns 404; no landing page or standalone documentation site found.
- —No dedicated pricing page — price ($0.01 USDC on Base) is only stated in the x402 challenge.
Citations
- —The API describes itself as '26 DeFi security and data endpoints — token audits, bridge routing, protocol analytics' with x402 payment per call.https://defi.hugen.tokyo/docs
- —The /defi/bridge/tools endpoint is a GET with no parameters, returning 200 on success.https://defi.hugen.tokyo/docs
- —The x402 challenge indicates $0.01 USDC on Base per call and lists Stargate as a bridge and 1inch as an exchange.https://defi.hugen.tokyo/defi/bridge/tools
- —Alternative access via broker API, MCP server, and x402-pay Python SDK is documented in the x402 challenge alternatives.https://defi.hugen.tokyo/defi/bridge/tools