mcp: proxy stdio servers in standalone mode#1479
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nacx merged 6 commits intoenvoyproxy:mainfrom Nov 12, 2025
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #1479 +/- ##
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Coverage 83.80% 83.81%
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Files 145 145
Lines 12722 12722
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+ Hits 10662 10663 +1
+ Misses 1440 1438 -2
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Signed-off-by: Ignasi Barrera <ignasi@tetrate.io>
Signed-off-by: Ignasi Barrera <nacx@apache.org>
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I've rebased to latest main and removed the dependency on |
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/retest |
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this is good, now a user can test stdio servers using EAIGW standalone mode ! |
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And also "convert" their stdio to HTTP easily.... You just need to build a Docker image that wraps your MCP with the aigw CLI and you have it. |
Signed-off-by: Ignasi Barrera <nacx@apache.org>
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/retest |
mathetake
approved these changes
Nov 12, 2025
| func TestStdio2HTTP(t *testing.T) { | ||
| // create a command to fork and exec the test binary as an MCP server. | ||
| t.Setenv(runMCPTestServer, "true") | ||
| cmd, err := os.Executable() |
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oh this pattern makes me feel so nostalgic... I was using this exact thing in wazero
hustxiayang
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to hustxiayang/ai-gateway
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Nov 13, 2025
**Description**
Opening as a draft to get early feedback.
When running in standalone mode, it allows running and proxying `stdio`
MCP servers. This PR only supports defining the servers in the
`servers.json` format, as for now, we don't want to introduce new nouns
for a feature that does not apply to Kubernetes.
With this change, the CLI can be started with a file like the following:
```
aigw run --mcp-json '{
"mcpServers": {
"everything": {
"command": "npx",
"args": ["-y","@modelcontextprotocol/server-everything"]
},
"filesystem": {
"command": "npx",
"args": ["-y","@modelcontextprotocol/server-filesystem"]
}
}
}'
```
**Related Issues/PRs (if applicable)**
Depends on envoyproxy/gateway#7427 for a clean
implementation.
**Special notes for reviewers (if applicable)**
N/A
---------
Signed-off-by: Ignasi Barrera <ignasi@tetrate.io>
Signed-off-by: Ignasi Barrera <nacx@apache.org>
Signed-off-by: yxia216 <yxia216@bloomberg.net>
missBerg
pushed a commit
to missBerg/ai-gateway
that referenced
this pull request
Dec 20, 2025
**Description**
Opening as a draft to get early feedback.
When running in standalone mode, it allows running and proxying `stdio`
MCP servers. This PR only supports defining the servers in the
`servers.json` format, as for now, we don't want to introduce new nouns
for a feature that does not apply to Kubernetes.
With this change, the CLI can be started with a file like the following:
```
aigw run --mcp-json '{
"mcpServers": {
"everything": {
"command": "npx",
"args": ["-y","@modelcontextprotocol/server-everything"]
},
"filesystem": {
"command": "npx",
"args": ["-y","@modelcontextprotocol/server-filesystem"]
}
}
}'
```
**Related Issues/PRs (if applicable)**
Depends on envoyproxy/gateway#7427 for a clean
implementation.
**Special notes for reviewers (if applicable)**
N/A
---------
Signed-off-by: Ignasi Barrera <ignasi@tetrate.io>
Signed-off-by: Ignasi Barrera <nacx@apache.org>
Signed-off-by: Erica Hughberg <erica.sundberg.90@gmail.com>
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Description
Opening as a draft to get early feedback.
When running in standalone mode, it allows running and proxying
stdioMCP servers. This PR only supports defining the servers in theservers.jsonformat, as for now, we don't want to introduce new nouns for a feature that does not apply to Kubernetes.With this change, the CLI can be started with a file like the following:
Related Issues/PRs (if applicable)
Depends on envoyproxy/gateway#7427 for a clean implementation.
Special notes for reviewers (if applicable)
N/A