OpenClaw With Clash: Route AI Agent API Traffic Reliably

Why OpenClaw API traffic needs a deliberate Clash route

OpenClaw can look like one application while making several different kinds of network requests. A model conversation may reach a provider’s API, but installation, sign-in, documentation, tool integrations, and optional web or search services can involve other hosts. If the agent runs as a background service, inside a container, or under a different operating-system account, it may also inherit different proxy settings from the terminal where you tested it. That is why “the browser works” and “Clash says connected” do not prove that OpenClaw can reach its model provider.

Clash evaluates connections according to its active rules and runtime settings. A request can therefore take a different path from the one you expect: an API hostname may match a broad DIRECT rule, DNS may resolve it differently from the browser, or OpenClaw may never use the local HTTP proxy at all. The visible symptom is often an authentication error, a slow first response, a retry loop, or a streaming answer that stops partway through. Each of those symptoms can have a different cause, so changing nodes at random is a poor first diagnostic.

The practical goal is a traceable route for the specific services OpenClaw needs—not an assumption that every connection should use one proxy. Start by identifying the provider configured in OpenClaw, the hostname it actually contacts, and the Clash group that should handle that hostname. Then test the route independently before you edit application settings. For a useful foundation on rule order and narrow matches, see Clash rule routing best practices.

Prepare OpenClaw and Clash before changing routes

First make a note of the OpenClaw installation method and the process that launches it. A command started from an interactive shell may inherit shell variables, while a desktop launcher, service manager, scheduled task, or container may not. Record whether the agent is running directly on the host or in an isolated environment, and identify the profile currently selected in Clash. This small inventory prevents a common troubleshooting loop: changing the proxy in one place while the actual OpenClaw process continues to run with a different environment.

In Clash, confirm that the intended profile is active and that its proxy groups have usable members. If the profile came from a subscription, allow it to refresh, then check that the group you plan to use is not empty or paused. Choose a maintained client and core compatible with the configuration features in your profile; menus and labels vary among Clash Verge, Clash Verge Rev, Mihomo, and other clients, but the route logic is the same. Avoid importing an unknown configuration simply because it advertises a particular AI service.

Find the local HTTP or mixed port in the client’s settings. A port such as 7890 is a common default, not a guarantee: your client may use another value, or the listener may be disabled. A SOCKS listener may also be available, but an application that supports HTTP proxy variables may be easier to test through the HTTP or mixed listener. Do not assume that the port number in an online example matches your machine.

• Confirm the client is running and the selected profile has finished loading.
• Note the actual HTTP or mixed listener address and port shown by your client.
• Identify OpenClaw’s provider name and the API base URL configured for that provider.
• Check whether OpenClaw runs as your user, a system service, or inside a container.
• Keep a copy of any configuration you intend to edit so you can restore a known-good state.

If the profile is unavailable or Clash reports an error before OpenClaw starts, fix that first. A client with no healthy route cannot make a provider connection reliable, and changing agent settings will not repair an invalid subscription, a disabled listener, or a local port conflict. Likewise, if a captive portal or other network sign-in page is waiting, complete the permitted network login before judging proxy behavior.

Import a profile and choose a predictable proxy group

If you have not yet loaded a profile, use the subscription or configuration import workflow provided by your Clash client. Obtain the URL or file from a provider you trust, and treat a subscription link as a credential: do not paste it into public issue reports, screenshots, or shell commands that may be saved in shared logs. After import, select the profile and wait until its rules and proxy groups appear. A successful import only means the client read the configuration; it does not demonstrate that a particular API hostname has a working route.

For initial diagnosis, select a clear, stable group rather than a group whose behavior is difficult to interpret. A manual selector makes it easier to know which node is being tested. An automatic latency-test group can be useful later, but probe success is not the same as successful access to an AI provider: the probe may target a different host, protocol, or network path. Make a note of the selected member before testing so a later result can be compared fairly.

Next inspect the rule policy that applies to the provider’s API hostname. Prefer a narrow, explicit rule for the provider or a documented API domain over a broad catch-all rule. The exact hostname depends on the provider, endpoint, and OpenClaw configuration; do not copy a domain list from an unrelated service and assume it will apply. If the provider allows a custom API base URL, verify that the host in that URL is the one you are classifying.

Rule order matters. A specific provider rule placed below an earlier broad rule may never be reached. If you maintain a custom profile, place the provider-specific match above general rules that could capture it, then check the live connection log after making the change. When the client offers a rule-connection view, use it to confirm both the matched hostname and the selected group. Do not infer the outcome from the rule text alone.

Configure OpenClaw to use the local Clash listener

Whether OpenClaw needs an explicit proxy setting depends on how it is installed and on the networking library used by the active provider integration. Some processes honor standard proxy environment variables; others use application-specific settings or do not support an HTTP proxy in that code path. Check the documentation for the version and integration you run before changing persistent settings. In particular, a variable exported in your terminal affects commands launched from that shell, but does not automatically configure an already-running service or a separate container.

For a temporary diagnostic in a shell that supports these variables, set the proxy address to the listener you verified in Clash. Replace the example port if your client uses another one:

export HTTP_PROXY=http://127.0.0.1:7890
export HTTPS_PROXY=http://127.0.0.1:7890
export http_proxy="$HTTP_PROXY"
export https_proxy="$HTTPS_PROXY"
export NO_PROXY=localhost,127.0.0.1,::1

These are conventional environment variable names, not a promise that every OpenClaw component will honor them. The HTTPS proxy value commonly still begins with http:// when it points to a local HTTP CONNECT proxy; it describes the connection to the proxy, not the scheme of the remote API. Use the format documented by your client and application. Keep loopback addresses in NO_PROXY so local callbacks and control endpoints do not accidentally take a round trip through the proxy.

Launch a fresh OpenClaw process from the same shell after setting temporary variables. If that works, make the setting persistent in the appropriate service configuration or supported application setting, then restart the service and verify its environment. Do not put provider API keys in proxy variables, and avoid writing secrets into command history. For a container, the host’s 127.0.0.1 usually refers to the container itself, not the host running Clash. Use a reachable host address or the documented container networking arrangement, and allow the listener only on interfaces and networks you trust.

If OpenClaw offers its own proxy configuration, prefer the documented application-level method when it is reliable and scoped to the agent. If it does not support a proxy, Clash may still handle its traffic through system proxy settings or a correctly configured TUN mode, depending on the client, operating system, and process network namespace. Those are different routing mechanisms: enabling TUN is not a substitute for confirming that the process is actually captured and that DNS is handled as intended.

Test the API route in layers, not by guesswork

Begin with the local listener. From the same environment that will launch OpenClaw, make a harmless request through the proxy to a public HTTPS endpoint permitted on your network. For example, a basic HTTP client can be told explicitly to use the local listener:

curl -I --proxy http://127.0.0.1:7890 https://example.com

This only checks that the client can reach a site through the listener; it does not test the AI provider or prove OpenClaw uses the proxy. If the request cannot connect to the local port, return to Clash and verify the listener address, port, and access settings. If the proxy connection works but the remote request fails, inspect Clash’s connection log and DNS behavior before changing OpenClaw.

Next test the provider’s documented API hostname using a simple request that does not expose credentials. A response such as an authentication error can still be useful: it may show that the network path reached an API endpoint, whereas a name-resolution failure or connection timeout points to a different layer. Do not put an API key directly into a shared terminal transcript. If an authenticated check is necessary, use a secure method recommended by the provider and redact the result before sharing it.

Finally, start OpenClaw and inspect its own logs alongside Clash’s live connection records. Compare the time of the failed request, the destination hostname, the matched rule, the chosen group, and the selected node. If the request appears in application logs but never in Clash, the process may not be using the listener or may be outside the client’s capture path. If it appears in Clash under an unexpected rule, investigate rule order or hostname resolution. If the expected rule and group are selected but the connection still fails, test another permitted group member and check provider status, account configuration, and network conditions.

• Connection refused to the local port: check the listener and its configured port before testing remote DNS.
• DNS error or an unexpected address: compare the client’s resolver behavior with the hostname shown in the connection log.
• Timeout at the provider host: verify the matched rule, group member, and whether the provider endpoint is reachable through that route.
• Authentication error: check the provider account, model name, API base URL, and credential scope separately from proxy reachability.
• Streaming stops after it begins: compare longer-lived connections and logs; a brief latency probe cannot validate a sustained response.

Find DNS, rules, and runtime mismatches

DNS can make a correct-looking rule behave unexpectedly. Depending on the client and profile, Clash may use different resolvers, fake-IP behavior, or domain mappings. OpenClaw can also run in a container or service environment whose resolver differs from the desktop browser’s. When a connection is missing from the expected rule, look at the actual destination and the client’s DNS settings before adding increasingly broad rules. A rule for a hostname cannot help if the process is connecting to a different host or if a custom endpoint is configured.

Be cautious when changing DNS mode. A change can affect unrelated applications, local service discovery, or access to private network names. Record the original setting, change one variable at a time, and retest the same API request. If you use a rule provider, inspect whether it has refreshed and whether an earlier rule takes precedence. A remote ruleset update can change routing without any local YAML edit, so the active connection log is more authoritative than what you remember the profile doing yesterday.

Runtime boundaries deserve equal attention. A desktop client may set operating-system proxy values that affect some applications but not a background agent. A service manager may start OpenClaw before the user session exists. A container may have a separate network namespace, DNS configuration, and route table. A TUN interface may capture ordinary traffic while excluding a process, subnet, or local destination by policy. In each case, verify the actual process path rather than relying on a tray icon or a “connected” label.

Keep the troubleshooting sequence controlled: record the current state, make one change, restart only the process that needs it, and repeat the same request. Do not simultaneously switch DNS modes, replace the proxy group, edit several rules, and rotate credentials. That destroys the comparison needed to identify a cause. Once the route works, keep only the narrow settings you need and document the chosen group, local port, and provider hostname for future maintenance.

Keep OpenClaw routing reliable over time

Reliability is a repeatable operating practice, not a one-time successful ping. After a Clash profile refresh, client update, OpenClaw upgrade, or provider endpoint change, confirm that the expected hostname still matches the intended rule. Keep a short note of the working listener and group, but do not store subscription URLs, API keys, or unredacted logs alongside it. When a failure returns, compare the current route with that baseline before rewriting the profile.

Avoid treating automatic node selection as a complete health check. A latency test measures its configured probe, not model authentication, quota, API streaming, or every endpoint used by the agent. If you enable automatic selection, make sure the candidate nodes are authorized for your intended use and that the group has a predictable fallback. For incident diagnosis, temporarily selecting one known route can make results easier to interpret than allowing the winner to change during each test.

Also distinguish network failure from application configuration. A reachable API host does not validate an expired key, unsupported model identifier, incorrect base URL, exhausted quota, or incompatible OpenClaw integration. Conversely, changing a valid credential will not fix a DNS failure or a rule that sends the request to the wrong path. Use the exact error and timestamp to correlate provider, application, and Clash logs, and remove sensitive headers or tokens before asking for help.

Compared with one-off environment-variable tweaks, a carefully verified Clash profile gives you visible rule matches, selectable routes, and connection logs that make provider traffic easier to diagnose; compared with a blanket tunnel, explicit routing can preserve the local and private destinations OpenClaw needs. Some lightweight proxy applications offer fewer ways to inspect rule decisions, while older or abandoned clients may not keep pace with current core behavior. If you want a maintained Clash workflow for testing profiles, groups, and API routes, visit the Clash V.CORE download page and choose the client suited to your operating system.