Atlas / MCP servers / millerchou / millerchou-strava-bridge

millerchou-strava-bridgeCAUTION

mcp/millerchou/strava-mcp-bridge

Use Strava's official MCP from Codex and OpenCode without creating a developer app. Local macOS Keychain and privacy-first streams.

Verdict
CAUTION
Grade
B
Trust score
89 /100
Exposed tools
3 3r · 0w · 0d
Transport
stdio
License
MIT
Stars
0
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://github.com/millerchou/strava-mcp-bridge/actions/workflows/ci.yml) [](LICENSE)

Use Strava's official MCP from Codex, OpenCode, and other local stdio MCP clients without creating your own Strava developer app.

The bridge runs locally on Apple Silicon macOS. Its OAuth credential is kept in macOS Keychain, large activity streams stay in local files, and GPS/location data is blocked before it can enter the AI context.

What It Enables

Once connected, a local coding agent can use Strava data as part of a real project workflow instead of working from copied summaries or synthetic data.

You: Pull my new rides since the local watermark and rebuild my training dashboard.

Codex:
3 new rides found through the official Strava MCP
full activity streams saved locally, omitted from model context
training summary and fitness chart rebuilt
no GPS, location, or polyline fields returned to the conversation

Other example tasks:

  • "Compare heart-rate load across my rides this week."
  • "Fetch the non-location streams for this activity and update my analysis."
  • "Use my latest cycling data to refresh the PMC/TRIMP dashboard in this repo."

The bridge supplies the safe Strava connection. Your agent can then combine the result with local scripts, notebooks, dashboards, or training-analysis code.

Why This Exists

Strava publishes an official MCP connector, but its documented first-time authorization flow currently targets Claude clients. Codex supports MCP, yet it cannot currently complete this Strava OAuth boot

Read from source at commit f3778b0806ccOBSERVED · 2026-10-14
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code (npm)
claude mcp add strava-mcp-bridge -- npx -y [email protected]
03

Exposed tools (3)

3 read · 0 write · 0 destructive.

ToolRiskDescription
get_activity_streamsreadallowed with policy guard
get_athlete_profilereadnot allowed
healthreadsafe
04

Trust audit

CAUTIONgrade B · trust 89/100 Install with care. The audit found things worth knowing before you trust its output.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codePASS
L2Instruction surface (what it tells the agent)FAIL
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
declared (2 observation(s))
Network
none-observed
Shell
declared (3 observation(s))
Dependencies
pinned
Secrets in source
none-found

Findings (5)

HIGHPrompt injection · prompt.credential_read · CWE-94, CWE-1427
.agents/skills/strava-mcp-bridge/SKILL.md:107
- `keychain-access-denied`: macOS refused the Keychain access request (a denied
Why it matters. asks the agent to read credentials
INFOPrompt injection · prompt.credential_read · CWE-94, CWE-1427
README.md:181
B -->|"read / rotate credential"| K["macOS Keychain"]
Why it matters. asks the agent to read credentials
INFOPrompt injection · prompt.credential_read · CWE-94, CWE-1427
README.md:267
| `strava-mcp-bridge doctor` | Read-only platform/helper/credential check |
Why it matters. asks the agent to read credentials
INFOPrompt injection · prompt.credential_read · CWE-94, CWE-1427
README.md:314
Tests use local mocks. They do not contact Strava or read Keychain.
Why it matters. asks the agent to read credentials
INFOPrompt injection · prompt.credential_read · CWE-94, CWE-1427
SECURITY.md:10
Do not include access tokens, refresh tokens, Keychain dumps, or activity data in
Why it matters. asks the agent to read credentials

Gates applied: no_behavioural_pass.

Audited 2026-10-14 · audit v0.4.1 · source sha f3778b0806ccfull audit observations/trust-audit/mcp-server/millerchou__strava-mcp-bridge.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-14f3778b0806ccCAUTIONB89first audit
06

Questions

What is the millerchou-strava-bridge MCP server?

Use Strava's official MCP from Codex and OpenCode without creating a developer app. Local macOS Keychain and privacy-first streams.

What tools does millerchou-strava-bridge expose?

3 in total: 3 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is millerchou-strava-bridge safe to connect to an agent?

With care. The audit graded it B (89/100) and found 5 things worth knowing before you trust this server, listed below with the exact line each was found on.

What credentials does millerchou-strava-bridge need?

It reads STRAVA_MCP_ACCESS_TOKEN, STRAVA_MCP_ALLOW_KEYCHAIN_HELPER_OVERRIDE, STRAVA_MCP_ALLOW_TOKEN_ENDPOINT_OVERRIDE, STRAVA_MCP_AUTH, STRAVA_MCP_BRIDGE_KEYCHAIN_SERVICE, STRAVA_MCP_KEYCHAIN_BACKEND, STRAVA_MCP_KEYCHAIN_HELPER, STRAVA_MCP_KEYCHAIN_TIMEOUT_MS, STRAVA_MCP_OAUTH_TIMEOUT_MS and STRAVA_MCP_TOKEN_ENDPOINT from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does millerchou-strava-bridge run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as strava-mcp-bridge at 0.1.1.

How current is this page?

The grade is for one exact copy of the source (f3778b0806cc), read on 2026-10-14. The repository is watched and re-audited when it changes.

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