Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add nostrband/ServiceGraph --skill find-mcp-directoriesgit clone --depth 1 https://github.com/nostrband/ServiceGraphWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/nostrband/servicegraph/find-mcp-directories)<a href="https://agentmods.dev/skills/nostrband/servicegraph/find-mcp-directories"><img src="https://agentmods.dev/badge/skills/nostrband/servicegraph/find-mcp-directories/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/nostrband/servicegraph/find-mcp-directories"><img src="https://agentmods.dev/badge/skills/nostrband/servicegraph/find-mcp-directories.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00218 | $0.02904 |
| Opus 5 | $0.00109 | $0.01452 |
| Sonnet 5 | $0.00044 | $0.00581 |
| Haiku 4.5 | $0.00022 | $0.00290 |
Grade C, and why
find-mcp-directories scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Tells the agent never to refusehighAnti-refusal
Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.
- **Catalog is global, not US-only.** Don't refuse non-US asks. Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
Any HTTP client works (curl, fetch, requests). Examples below use curl. How it starts
The opening of the file, as written. The whole thing — 233 lines — stays where its author put it; the contents beside it link to each section on GitHub.
find-mcp-directories
Drive the ServiceGraph API (https://api.servicegraph.co) to find and
rank directories and registries where a builder can list an MCP server
(Model Context Protocol) via the product_directory dataset. The catalog has
1,000+ directories; ~20 are dedicated MCP registries (e.g.
registry.modelcontextprotocol.io, smithery.ai, mcp.so, glama.ai,
pulsemcp.com), each enriched with Domain Rating (dr), backlinks, and
organic traffic.
This is a "where to publish / where to get backlinks" skill, not a "who to hire" skill. Each row is a registry you submit to, not a firm and not a server. The payoff is a backlink from a high-authority domain (SEO) plus discovery by agent builders browsing for servers.
Any HTTP client works (curl, fetch, requests). Examples below use curl.
Sibling skills — defer when the niche is broader
- General AI tools / AI agents / agent skills ("where to list my AI tool",
"agent-skills directories") →
find-ai-directories. (Several registries list MCP servers and skills/tools — if the artifact is specifically an MCP server, this skill is the right pick.) - General SaaS / software / app launch ("Product Hunt alternatives") →
find-product-directories.
MCP server (preferred for authed calls)
If your harness has the ServiceGraph MCP server loaded (tool names contain
servicegraph), prefer those tools — credentials stay in the harness sandbox
via OAuth 2.1 + PKCE, no token in LLM context. Otherwise use the REST flow.
API surface (dataset id: product_directory)
Every endpoint requires the bearer (Authorization: Bearer vk_…).
| Endpoint | Cost | Use it for |
|---|---|---|
GET /v1/datasets/product_directory/fields[?include_values=1&q=] |
free | Filter-field catalog + DSL grammar. Call first per session. |
GET /v1/datasets/product_directory/values/:field[?q=&limit=] |
free | Enumerate values for one field. |
GET /v1/datasets/product_directory/check?filter=… |
free | Validate a filter. |
POST /v1/datasets/product_directory/translate-intent |
free | {intent} → DSL filter + sanity count. |
GET /v1/datasets/product_directory/search?filter=…&limit=&offset= |
free | Brief cards (incl. dr) + per-row unlock hint + total. |
GET /v1/datasets/product_directory/:apex |
free | Single row brief; gated fields only if unlocked. |
POST /v1/datasets/product_directory/unlocks |
10 credits / row | {apexes:[...]} ≤100. Atomic; 30-day TTL; was_cached:true free. |
GET /v1/me/credits |
free | Balance. |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 233 lines · 218 tokens per session scan C 4d831ed92050
find-mcp-directories is a skill published in the GitHub repository nostrband/ServiceGraph (62 stars, last pushed 3mo ago), licensed MIT. It adds 218 tokens to every session and 2,904 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it C with 2 findings (tells the agent never to refuse, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
image-to-3d
Turn a generated or photographed image of a single object into a 3D mesh with the Tripo API, and download the GLB. Use when the request involves image-to-3D, photogrammetry-style reconstruction, turning a product shot or an isolated garment, prop or piece of hardware into a model for Blender, Unity or Unreal, or when…
character-reference-sheets
Dress 3D character base renders with AI-generated clothing while preserving the body, pose and framing, so each garment can be cut out and sent to image-to-3D generators. Use when the request involves a Blender base render in A-pose or T-pose, a character visual sheet, a turnaround, generating clothing over a nude…
scanner-pmcc
Scan stocks for Poor Man's Covered Call (PMCC) suitability. Analyzes LEAPS and short call options for delta, liquidity, spread, IV, yield, trend direction, and earnings proximity. Use when user asks about PMCC candidates, diagonal spreads, or LEAPS strategies.
ib-trades-history
Fetch trade executions from Interactive Brokers filtered by account, date range, or symbol. Supports live API (7 days history) and FlexReport (full history). Use when user asks about their trades, executions, or transaction history. Requires TWS or IB Gateway running locally.
ib-collar
Generate tactical collar strategy reports for protecting PMCC positions through earnings or high-risk events. Requires TWS or IB Gateway running locally.
ib-portfolio-action-report
Generate a comprehensive portfolio action report with earnings dates and risk assessment. Use when user asks for portfolio review, action items, earnings risk, or position management across IB accounts. Requires TWS or IB Gateway running locally.