Skills/PyPI/mcp-streamablehttp-client

mcp-streamablehttp-client@0.2.0

VERIFIED· not started

Publisher claims: "Streamable HTTP to stdio proxy client for MCP servers with OAuth support" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher atrawog · publishing for 508 daysInstalls 270Last detonated 5d ago
$claude mcp add mcp-streamablehttp-client -- uvx mcp-streamablehttp-client
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
no vendor host named in the codeAlso httpbin.org — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx mcp-streamablehttp-client

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-09 and scored it 88/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/cli.py:37 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesdefault=".env",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/config.py:83 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# NO CREDENTIAL FILES! Everything through .env as divinely commanded!Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/cli.py:115 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# Try to find .env in parent directoriesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/config.py:13 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Application settings with .env file support."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/cli.py:118 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filescandidate = current / ".env"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/config.py:15 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesmodel_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", case_sensitive=False, extra="ignore")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/oauth.py:99 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# NO CREDENTIAL FILES! Everything comes from .env as commanded!Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/cli.py:46 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files@click.option("--server-url", help="Override MCP server URL from .env")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/cli.py:38 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system fileshelp="Path to .env file with configuration",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_streamablehttp_client/config.py:115 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# NO CREDENTIAL FILES! Everything flows through .env as commanded by CLAUDE.md!Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05

Cost to the agent

Instructions loaded
≈61 tok
1 file · 16 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mcp-streamablehttp-client@0.2.0 as of 5d ago. This is the package itself, not its dependencies.