ApolloCAUTION
Apollo MCP Server
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://mcptoplist.com/server/io.github.apollographql%2Fgraphos-mcp-tools)
[](https://codecov.io/github/apollographql/apollo-mcp-server)
Apollo MCP Server is a Model Context Protocol server that exposes GraphQL operations as MCP tools. It provides a standard way for AI models to access and orchestrate your APIs running with Apollo.
Documentation
See the documentation for full details. This README shows the basics of getting this MCP server running. More details are available on the documentation site.
Installation
You can either build this server from source, if you have Rust installed on your workstation, or you can follow the installation guide. To build from source, run cargo build from the root of this repository and the server will be built in the `target/deb
991b4117191fOBSERVED · 2026-10-05Connect
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.
claude mcp add apollo-mcp-server:v1.20.0 -- docker run -i --rm ghcr.io/apollographql/apollo-mcp-server:v1.20.0:None /config.yaml
Trust audit
CAUTIONgrade C · trust 77/100 Install with care. The audit found things worth knowing before you trust its output.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | WARN |
| L1 | Static analysis of the code | WARN |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (1 observation(s))
- Network
- declared (11 observation(s))
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (25)
.claude/skills/mcp-apps-sync-docs
.claude/skills/rust-best-practices
let result = client.get("http://192.0.2.1:1").send().await;let response = Http::get("http://127.0.0.1:1").wait();@"https://studio.apollographql.com/graph/mcp-example/variant/mcp/explorer?explorerURLState=N4IgJg9gxgrgtgUwHYBcQC4QEcYIE4CeABAOIIoDqCAhigBb4CCANvigM4AUAJOyrQnREAyijwBLJAHMAhAEoiwADpIiRaqzwdOfAUN78UCBc
.application-manifest.json
CLAUDE.md
endpoint: "http://127.0.0.1:4317"
endpoint: "http://127.0.0.1:4317"
endpoint: http://127.0.0.1:4000
Apollo MCP Server validates signed JWT bearer access tokens; it doesn't support opaque access tokens. Each JWT must contain a `kid` header, as well as `exp` and `sub` claims. The token must also conta
You can enable credentials with CORS by setting the `Access-Control-Allow-Credentials` HTTP header to `true`.
# Set to true to add the `Access-Control-Allow-Credentials` header
The base request path sends GraphQL as a structured JSON HTTP request and doesn't invoke an operating-system shell or child process from MCP tool input. Operator-provided Rhai scripts run before outgo
1. Choose the environment-specific command to load environment variables from the provided `.env` file and start the MCP server.
curl -sSL https://rover.apollo.dev/nix/latest | sh
curl -sSL https://mcp.apollo.dev/download/nix/latest | sh
curl -sSL https://mcp.apollo.dev/download/nix/v1.20.0 | sh
curl -sSL https://mcp.apollo.dev/download/nix/v1.20.0-rc.1 | sh
Requests that stream a response — every tool call — now report the full request duration rather than the time to the response head, because the span stays open until the body finishes. This is the dur
The MCP server could become completely unresponsive to POST /mcp requests after hours of uptime while /health remained responsive. This occurred when a peer's transport entered a half-closed state (e.
Apollo MCP Server reads the standard `scope` claim first. This claim is a space-separated string, defined in [RFC 6749](https://datatracker.ietf.org/doc/html/rfc6749) and [RFC 9068](https://datatracke
Avoid header forwarding for sensitive credentials like API keys or access tokens. Apollo MCP Server logs a warning when you forward sensitive headers such as `Authorization`, `Cookie`, `Proxy-Authoriz
**To support credentialed requests, your server's config file must specify individual `origins` or `match_origins`**. If your server enables `allow_any_origin`, your browser will refuse to send creden
Gates applied: no_behavioural_pass.
991b4117191ffull audit observations/trust-audit/mcp-server/apollographql__apollo.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-05 | 991b4117191f | CAUTION | C | 77 | first audit |
Questions
What is the Apollo MCP server?
Apollo MCP Server
Is Apollo safe to connect to an agent?
With care. The audit graded it C (77/100) and found 25 things worth knowing before you trust this server, listed below with the exact line each was found on.
What credentials does Apollo need?
No credential environment variables were found in its source, so it appears to need none.
How does Apollo run?
It speaks stdio and streamable-http, so it runs as a local process your client starts. It is published on npm as apollo-mcp-server-conformance.
How current is this page?
The grade is for one exact copy of the source (991b4117191f), read on 2026-10-05. The repository is watched and re-audited when it changes.