LegiScan Alternative: Comparing Legislative Tracking Tools

If you've searched for a way to track a bill programmatically, you've run into LegiScan. It's been running since 2010, it covers all 50 states plus DC and Congress under one roof, and it ships a real API with a free tier — which puts it in a small club of legislative-data services that actually let you build something without a sales call first. Before getting into where Bill100 differs, it's worth being straight about what LegiScan does well, because a lot of it is genuinely hard to replicate.

What LegiScan actually is

LegiScan runs a national legislative database — bill text, sponsors, votes, and action history — for all 50 state legislatures, the DC Council, and the U.S. Congress, updated from the same primary sources (legiscan.com) that state and federal chambers publish through. On top of the database sits GAITS, LegiScan's web platform for searching and monitoring bills, and a separate LegiScan API for anyone who wants the data in JSON rather than a browser tab.

• Coverage breadth. All 50 states, DC, and Congress in one dataset — this is LegiScan's clearest strength, and one of the few places you can get state-level bill data at all without stitching together fifty separate state sources.
• Downloadable datasets. Current and historical legislative archives in JSON, XML, or CSV, going back years, for anyone who wants bulk data rather than live queries.
• A real free API tier. The public Pull-interface tier is free after registration, with a published monthly query allowance — no credit card required to start building.
• Track record. More than a decade of continuous operation covering every state session is not a small thing in this space; a lot of legislative-data tools don't survive that long.

The API itself comes in two interface styles — pull (you request data) and push (LegiScan replicates its database to you, refreshed on a schedule) — across three published service levels: a free Public tier with a monthly query cap, an introductory Pull subscription with a higher query allowance, and an Enterprise Push tier that mirrors the full national database on a refresh cycle. Pricing for the paid tiers is structured annually and scales with how many states' worth of coverage you need, since Congress is billed as a single state-equivalent — see LegiScan's own pricing page for current numbers, since we'd rather point you at the source than guess at a figure that might have moved by the time you read this.

Where Bill100 differs

Bill100 starts from a narrower base — U.S. federal legislation, sourced from Congress.gov and GovTrack — and puts more of its engineering into what happens to that data once it's fetched, rather than how many jurisdictions it spans. Three things are structural to how it's built:

• AI plain-English summaries on every bill, generated from the bill's actual current text, not a static blurb — the whole point of tracking a bill is understanding what it does without reading forty pages of legislative drafting.
• An MCP server alongside the REST API, so an AI agent can call `search_bills`, `get_bill_summary`, or `analyze_bill_impact` directly as tools rather than scraping a web page or re-parsing prose — see our notes on why this matters for agents if you're building on top of an LLM.
• Usage-metered, self-serve pricing rather than an annual quote — the plans are published, start free, and scale per API call rather than per jurisdiction.

The free tier covers every U.S. federal bill with a plain-English AI summary, tracking for up to five bills, a weekly digest, and a public JSON API (500 calls/month, 10/minute) with anonymous MCP access for agents to try before authenticating. Pro is $29/month and adds unlimited tracking, same-day email and webhook alerts, 200 tailored AI impact analyses a month, and 10,000 API/MCP calls a month before metered overage kicks in at $2 per 1,000. Scale is $99/month for teams building agent products on top of the data — 100,000 calls a month, 2,000 impact analyses, hosted MCP at production quota, and priority support. Full detail is on the pricing page and the developer docs.

When LegiScan is the better fit

Fairly: if what you need is state-level bill data, LegiScan is the more complete tool today. Bill100's coverage is federal-first — all-states coverage is on the roadmap and is being phased in as part of the Scale plan, but it isn't the comprehensive, decade-plus-mature dataset LegiScan already runs across all 50 legislatures. If your work is a state government-affairs desk tracking bills in a dozen statehouses, or you need bulk historical archives going back years for research, LegiScan's breadth and its downloadable datasets are hard to beat, and its free API tier is a legitimate way to start without committing to anything.

When Bill100 fits better

If your work is federal-only — a compliance team watching Congress, a public-affairs desk that needs a plain-English readout instead of raw bill text, or a product wiring legislative lookups into an AI agent — Bill100's narrower scope is a feature, not a gap. The MCP server means an agent can call a tool and get structured, sourced JSON back instead of a page to scrape. The AI summaries mean a human doesn't have to read the underlying text to understand what a bill does, and the impact-analysis tool goes a step further for anyone who needs a bill assessed against a specific business or industry context. And the pricing is transparent and self-serve from the first sign-up — no annual quote, no sales conversation to find out what a plan costs.

Neither tool is a strict upgrade over the other — they're built around different bets. LegiScan bet on breadth across every U.S. legislature and has stuck with it for over fifteen years. Bill100 bet on going deep on federal data specifically — summarized, sourced, and exposed to both humans and AI agents through the same API — and on pricing that a small team can start on without a procurement process. If you're evaluating both, the developers page and MCP setup guide will tell you in a few minutes whether Bill100's shape fits your workflow.