Tollbooth Shortlinks

Don't Pester Your Customer™ (DPYC™) — Ephemeral, human-friendly short URLs for the Tollbooth ecosystem.

The metaphors in this project are drawn with admiration from The Phantom Tollbooth by Norton Juster, illustrated by Jules Feiffer (1961). Milo, Tock, the Tollbooth, Dictionopolis, and Digitopolis are creations of Mr. Juster's extraordinary imagination. We just built the payment infrastructure.

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Why This Exists

OAuth Authorization URLs are long, ugly, and hostile to copy-paste:

https://api.schwab.com/v1/oauth/authorize?client_id=abc123&redirect_uri=https%3A%2F%2F
fastmcp.cloud%2Foauth%2Fcallback%3Fserver_id%3D...&scope=...&response_type=code&state=...

Traditional link shorteners have become opinionated. They inject interstitial pages, track clicks, require accounts, gate features behind paywalls, or silently expire links on their own schedule. When an MCP server needs to hand a patron a one-time URL for an OAuth dance, none of that belongs in the path.

Tollbooth Shortlinks is a community utility with no monetization. It turns any URL into a memorable four-word phrase like brave-otter-finds-gold, stores the mapping in Neon Postgres, and expires it after 24 hours. A companion Val Town HTTP handler does the 302 redirect with zero interstitial.

How It Works

MCP Server                    Shortlinks MCP              Val Town
    |                              |                         |
    |-- create_shortlink(url) ---->|                         |
    |<-- brave-otter-finds-gold ---|                         |
    |                              |                         |
    |  (patron clicks short URL)   |                         |
    |                              |    GET /brave-otter-..  |
    |                              |<------------------------|
    |                              |    Neon lookup           |
    |                              |-- 302 redirect -------->|
    |                              |                         |
    |        (24h later)           |                         |
    |                              |  link expires silently   |

Tools

Tool	Description
create_shortlink	Store a URL, get back a memorable slug (or supply your own)
resolve_shortlink	Look up where a slug points without redirecting
delete_shortlink	Remove a shortlink before it expires
shortlink_status	Health check showing active link count and TTL

All tools are free -- no credits, no npub, no Tollbooth ledger required.

Install

pip install -e ".[dev]"

Run Locally

export NEON_SHORTLINKS_URL="postgres://user:pass@ep-xyz.us-east-2.aws.neon.tech/shortlinks"
python -c "from server import mcp; mcp.run()"

Deploy to Horizon

The .fastmcp.yaml at the repo root is ready for fastmcp deploy.

DPYC Identity

Tollbooth Shortlinks is registered as an Advocate in the DPYC Social Contract. Peer MCP servers discover its URL via registry lookup:

from tollbooth import resolve_service_by_name

shortlinks_url = resolve_service_by_name("tollbooth-shortlinks")
redirect_base  = resolve_service_by_name("tollbooth-shortlinks-redirect")

Related Repos

The Tollbooth DPYC™ ecosystem:

Repo	Role
tollbooth-dpyc	The wheel -- operator-side credit ledger, BTCPay client, tool gating, constraint engine
tollbooth-authority	The institution -- fee collection, Schnorr signing, purchase certification
dpyc-oracle	The oracle -- Social Contract governance, membership, ban elections
dpyc-community	The registry -- governance data, operator catalog, community rules
tollbooth-sample	Reference operator -- weather API with full Tollbooth wiring
cypher-mcp	Monetized graph answers -- named Cypher over Neo4j/AuraDB
schwab-mcp	Charles Schwab brokerage MCP -- trading, quotes, portfolio access
excalibur-mcp	eXcalibur -- formatted posting to X (Twitter)
thebrain-mcp	Personal Brain MCP -- thought graphs, knowledge management
taxsort-mcp	Tax sorting and classification MCP
optionality-mcp	Options analytics MCP
tollbooth-shortlinks (this repo)	Community utility -- ephemeral short URLs for OAuth flows
tollbooth-oauth2-collector	OAuth2 callback collector -- browser-based token exchange
tollbooth-pricing-studio	iOS app -- operator dashboard and pricing model editor

License

Apache-2.0. See LICENSE for details.