mcf-api

mcf-api is a skill for Claude Code from jrmatherly/mcp-context-forge. It costs 103 tokens per session (2,368 once invoked), scanned A, original, Apache-2.0.

A guide for using the MCP Context Forge gateway's REST API, the web interface applications can call to manage connected tools and services.

In plain words
What is it for?
Use it to register servers, invoke tools, manage teams, configure OAuth, and perform gateway administration.
Why use it?
It gives the required authentication, server addresses, and operations for working with the gateway programmatically.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Good fit Use it to register servers, invoke tools, manage teams, configure OAuth, and perform gateway administration.

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Install with agentmods
npx agentmods add skills/jrmatherly/mcp-context-forge/mcf-api
Install

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.

Any agent
npx skills add jrmatherly/mcp-context-forge --skill mcf-api
Clone the repo
git clone --depth 1 https://github.com/jrmatherly/mcp-context-forge

Made for: Claude Code.

Wrote 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.

agentmods badge for mcf-api

README.md
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Your own site
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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.

agentmods 80×15 button for mcf-api

Your own site · 80×15
<a href="https://agentmods.dev/skills/jrmatherly/mcp-context-forge/mcf-api"><img src="https://agentmods.dev/badge/skills/jrmatherly/mcp-context-forge/mcf-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,368 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00103 $0.02368
Opus 5 $0.00051 $0.01184
Sonnet 5 $0.00021 $0.00474
Haiku 4.5 $0.00010 $0.00237

Measured 5d ago against content hash 1af1d6f9ccf3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

mcf-api scanned grade A with 1 finding 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 5d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

description: Interact with the MCP Context Forge Gateway REST API — register gateways, create servers, invoke tools, manage teams, configure OAuth, and perform admin operations. Use when asked to register an MCP server,
.claude/skills/mcf-api/SKILL.md · 261 lines

How it starts

The opening of the file, as written. The whole thing — 261 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Perform gateway API operation: $ARGUMENTS

Authentication Setup

All authenticated endpoints require a JWT bearer token.

Generate a token

# Admin token (full access — teams: null + is_admin: true)
export MCPGATEWAY_BEARER_TOKEN=$(python -m mcpgateway.utils.create_jwt_token \
  --username [email protected] --exp 10080 --secret $JWT_SECRET_KEY | tr -d '\n')

# Team-scoped token
export MCPGATEWAY_BEARER_TOKEN=$(python -m mcpgateway.utils.create_jwt_token \
  --username [email protected] --exp 60 --secret $JWT_SECRET_KEY --teams '["team-uuid"]' | tr -d '\n')

# Public-only token (automation)
export MCPGATEWAY_BEARER_TOKEN=$(python -m mcpgateway.utils.create_jwt_token \
  --username [email protected] --exp 60 --secret $JWT_SECRET_KEY --teams '[]' | tr -d '\n')

Token scoping rules

JWT teams is_admin: true is_admin: false
Key MISSING PUBLIC-ONLY PUBLIC-ONLY
null ADMIN BYPASS PUBLIC-ONLY
[] PUBLIC-ONLY PUBLIC-ONLY
["t1"] Team + Public Team + Public

Base URLs

  • Dev: http://127.0.0.1:8000 (make dev)
  • Prod: http://localhost:4444 (make serve)
  • Docker: http://localhost:8080 (nginx proxy)

Common Operations

Health Check (no auth)

curl -s http://localhost:4444/health | jq
curl -s http://localhost:4444/ready | jq

Register a Gateway (external MCP server)

curl -s -X POST -H "Authorization: Bearer $MCPGATEWAY_BEARER_TOKEN" \
     -H "Content-Type: application/json" \
     -d '{
           "url": "http://localhost:9000",
           "name": "my-mcp-server",
           "description": "Example MCP server",
           "transport": "STREAMABLEHTTP"
         }' \
     http://localhost:4444/gateways | jq

Transport options: SSE, STREAMABLEHTTP, WEBSOCKET, STDIO

With bearer auth
curl -s -X POST -H "Authorization: Bearer $MCPGATEWAY_BEARER_TOKEN" \
     -H "Content-Type: application/json" \
     -d '{
           "url": "http://localhost:9000",
           "name": "auth-server",
           "auth_type": "bearer",
           "auth_token": "server-secret-token"
         }' \
     http://localhost:4444/gateways | jq

Read the full file on GitHub · 261 lines

Changes

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.

  1. 5d ago First seen · 261 lines · 103 tokens per session scan A 1af1d6f9ccf3

Subscribe to this mod's changes

mcf-api is a skill published in the GitHub repository jrmatherly/mcp-context-forge (0 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 103 tokens to every session and 2,368 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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