Hex.pm MCP

REMOTE · HEXPM-MCP.FLY.DEV · SCANNED AUG 3

MCP server for hex.pm and hexdocs.pm: search, inspect, compare, and audit Elixir packages

Available components

+3 this week 68 68 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →

Endpoint Security57

The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
Authorisation not fully verified: no authorisation is required to call this server, and 24 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail

Transport & Reachability100

Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass

Schema Quality & AI Usability82

100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
AI-judged instruction clarity (good).Pass
Tool/resource definitions use about 1078 tokens (~43/item across 25 items; 24 tools + 1 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management27

Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage100

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
100% of tool parameters carry a description.Pass

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · hexpm-mcp.fly.dev

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add --transport http joshrotenberg-hexpm-mcp https://hexpm-mcp.fly.dev/mcp

# ~/.codex/config.toml

[mcp_servers.joshrotenberg-hexpm-mcp]
url = "https://hexpm-mcp.fly.dev/mcp"

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "joshrotenberg-hexpm-mcp": {
      "type": "remote",
      "url": "https://hexpm-mcp.fly.dev/mcp",
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add joshrotenberg-hexpm-mcp --url https://hexpm-mcp.fly.dev/mcp --transport streamable-http

# ~/.hermes/config.yaml

mcp_servers:
  joshrotenberg-hexpm-mcp:
    url: "https://hexpm-mcp.fly.dev/mcp"

// mcp.json

{
  "mcpServers": {
    "joshrotenberg-hexpm-mcp": {
      "type": "http",
      "url": "https://hexpm-mcp.fly.dev/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

2 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
29 Jul 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
28 Jul 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
26 Jul 26 65

First indexed and scored.

Show 6 earlier entries Hide earlier entries

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Probed https://hexpm-mcp.fly.dev/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject	Issuer	Valid from	Valid until	Key	Signature	Serial
CN=*.fly.dev	CN=YE2,O=Let's Encrypt,C=US	21 Jun 2026	19 Sept 2026	ECDSA 256	ECDSA-SHA384	503153e73302e4a0c89ebb83c4a741aac04
SANs: *.fly.dev
CN=YE2,O=Let's Encrypt,C=US (CA)	CN=Root YE,O=ISRG,C=US	3 Sept 2025	2 Sept 2028	ECDSA 384	ECDSA-SHA384	4df3b15dd6c0784c507cd37b58e6f115
CN=Root YE,O=ISRG,C=US (CA)	CN=ISRG Root X2,O=Internet Security Research Group,C=US	13 May 2026	2 Sept 2032	ECDSA 384	ECDSA-SHA384	872165fc34b6e5fba8add5b3705fb53a
CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA)	CN=ISRG Root X1,O=Internet Security Research Group,C=US	13 May 2026	2 Sept 2032	ECDSA 384	SHA256-RSA	6c8f1dc727c7117f7baf853ac980f9cd

DNSSEC insecure

Validation of hexpm-mcp.fly.dev. — Not signed

Zone	DS	Keys	Algorithms	Outcome
.	trust_anchor	20326, 38696	8, 8	Verified
dev.	present	60074	8	Verified
fly.dev.	absent			Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation

Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result	No authorisation required
HTTP status	200

Transports 2 probes

Transport	URL	Outcome	Status	Location
streamable-http	https://hexpm-mcp.fly.dev/mcp	Verified	200
http (plaintext)	http://hexpm-mcp.fly.dev/mcp	HTTPS enforced	301	https://hexpm-mcp.fly.dev/mcp

MCP tools — 24 exposed · ~1,062 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens

alternatives ~31

Find and compare alternative packages for a given hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm

No output schema declared.

No examples provided.

audit ~62

Audit a package's dependencies for risks. Checks each dependency for retired versions, stale packages, single-owner packages, and known vulnerabilities via OSV.dev.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
version	string	—	Release version (defaults to latest)

No output schema declared.

No examples provided.

audit_mix_deps ~56

Audit mix.exs dependencies for risks.

Input Output Examples

Name	Type	Req	Description
deps	string	yes	Mix.exs deps list as text, e.g. {:phoenix, "~> 1.7"}, {:ecto, "~> 3.10"}

No output schema declared.

No examples provided.

compare ~38

Compare 2-5 hex.pm packages side by side.

Input Output Examples

Name	Type	Req	Description
packages	string	yes	Comma-separated list of package names (2-5 packages)

No output schema declared.

No examples provided.

dep_tree ~72

Get the full transitive dependency tree for a package (BFS, max depth 5).

Input Output Examples

Name	Type	Req	Description
max_depth	integer	—	Maximum depth to traverse (default 5, max 5)
name	string	yes	Package name on hex.pm
version	string	—	Release version (defaults to latest)

No output schema declared.

No examples provided.

dependencies ~39

Get dependencies for a package version.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
version	string	—	Release version (defaults to latest)

No output schema declared.

No examples provided.

doc_item ~59

Get full documentation for a specific module or function.

Input Output Examples

Name	Type	Req	Description
module	string	yes	Module name (e.g. "Plug.Conn")
name	string	yes	Package name on hex.pm
version	string	—	Package version (defaults to latest)

No output schema declared.

No examples provided.

docs ~39

Browse package documentation -- module listing.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
version	string	—	Package version (defaults to latest)

No output schema declared.

No examples provided.

downloads ~28

Get download statistics for a hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm

No output schema declared.

No examples provided.

features ~42

Get optional features/extras for a package release.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
version	string	—	Release version (defaults to latest)

No output schema declared.

No examples provided.

health ~28

Comprehensive health check for a hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm

No output schema declared.

No examples provided.

info ~28

Get detailed information about a hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm

No output schema declared.

No examples provided.

owners ~30

Get owners/maintainers of a hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm

No output schema declared.

No examples provided.

readme ~43

Get the README content for a hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
version	string	—	Package version (defaults to latest)

No output schema declared.

No examples provided.

release ~47

Get detailed information about a specific package release.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
version	string	yes	Release version (e.g. "1.8.5")

No output schema declared.

No examples provided.

search ~66

Search for packages on hex.pm by name/keywords.

Input Output Examples

Name	Type	Req	Description
page	integer	—	Page number (default 1)
query	string	yes	Search query string
sort	string	—	Sort by: name, recent_downloads, total_downloads, inserted_at, updated_at

No output schema declared.

No examples provided.

search_docs ~51

Search within a package's documentation by name.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm
query	string	yes	Search query
version	string	—	Package version (defaults to latest)

No output schema declared.

No examples provided.

toolbox_category ~80

List the curated projects in an Elixir Toolbox category.

Input Output Examples

Name	Type	Req	Description
category	string	yes	Category slug within the group (e.g. "frameworks")
group	string	yes	Group slug (e.g. "web", "ai")
sort	string	—	Ordering: "name" (alphabetical) or "downloads"; defaults to popularity order

No output schema declared.

No examples provided.

toolbox_group ~37

List the categories in a single Elixir Toolbox group.

Input Output Examples

Name	Type	Req	Description
group	string	yes	Group slug (e.g. "web", "ai")

No output schema declared.

No examples provided.

toolbox_groups ~20

Browse the Elixir Toolbox curated taxonomy of groups and categories.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

toolbox_search ~49

Search packages via Elixir Toolbox. Results carry GitHub/GitLab stats, popularity, and health signals not exposed by the raw hex.pm search.

Input Output Examples

Name	Type	Req	Description
query	string	yes	Search query string

No output schema declared.

No examples provided.

toolbox_trending ~32

List trending Elixir packages from Elixir Toolbox.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Maximum number of projects to return

No output schema declared.

No examples provided.

upgrade_check ~57

Check which mix.exs dependencies have newer versions available.

Input Output Examples

Name	Type	Req	Description
deps	string	yes	Mix.exs deps list as text, e.g. {:phoenix, "~> 1.7"}, {:ecto, "~> 3.10"}

No output schema declared.

No examples provided.

versions ~28

List all versions of a hex.pm package.

Input Output Examples

Name	Type	Req	Description
name	string	yes	Package name on hex.pm

No output schema declared.

No examples provided.

On this page

Handy links

Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

26 Jul 3 Aug

Day	Score
26 Jul	65
27 Jul	65
28 Jul	66
29 Jul	67
30 Jul	67
31 Jul	67
1 Aug	67
2 Aug	68
3 Aug	68