Amendment

npx add-mcp 'https://mcp.amendment.app/mcp'

Current, cited U.S. law your agent can call, with the money behind it attached.

Give your AI the record itself: the U.S. Code and C.F.R. as citable sections, bills in Congress and all 50 states, and the public companies lobbying on federal bills. Bills, law and lobbying filings come back with their official source, and each bill with its stage, last action and date, in Claude, in any MCP client, or through our API.

Claude ChatGPT

https://mcp.amendment.app/mcp

In Claude, open Settings → Connectors → Add custom connector, paste the URL, and sign in with your Amendment account. No key, no config file. Full setup

Your agent asks

Is the Retire through Ownership Act law?

Amendment returns

stage

Law

lawNumber

119-124

enactedDate

2026-10-15

lawReferences

Amends 29 U.S.C. § 1002

source

congress.gov

show_bill

U.S. Code and C.F.R. sections, each citable by a stable key

330K

citation links between bills, statutes and rules

5.5M

public companies joined to their federal lobbying

1,700

jurisdictions of bills (Congress, all 50 states and D.C.), each with a last-updated date

52

The side-by-side

Your model’s training stops. The record doesn’t.

Claude Opus 5.5 alone against Claude Opus 5.5 with the Amendment connector, on four questions about what happened after its June 2026 training cutoff. Web search was off in both runs. A point means an answer with its source.

0/4

4/4

Claude alone

Where does the Russia and Iran sanctions bill stand?

I can’t confirm where that bill stands. My training data ends in June 2026, so anything after that is past what I know.

Congress.gov will have its latest action.

No answer

Claude with Amendment

Where does the Russia and Iran sanctions bill stand?

Used Amendment · show_bill

It’s law. It was signed on September 18, 2026. Here’s the record, with the companies that lobbied on it.

H.R. 5334Law · No. 119-111

Lindsey O. Graham Sanctioning Russia and Iran Act of 2026

Became Public Law No. 119-111 · Sep 18, 2026

9 public companies lobbied on it

Law since Sep 18, 2026

The questionClaude aloneClaude with Amendment

• Where does the Russia and Iran sanctions bill stand? No answer. Its training data ends June 2026. Law since Sep 18, 2026 as P.L. 119-111, with 9 public companies that lobbied on it
• Is the ROAD to Housing Act law? Won’t guess. “I’d risk inventing one.” Yes, P.L. 119-101, law July 11, 2026. House 358 to 32, Senate 85 to 5
• What is Home Depot lobbying on right now? Background from memory. No 2026 spend figure. $2.46M so far in 2026, and 16 pending bills named in its 2026 reports, led by retail crime
• Who lobbies on the Remote Access Security Act? Guesses industries. Names no companies. 13 public companies, led by Synopsys

Why not web search

Some answers aren’t on any web page. We run the join.

Search hands the model pages to read, reconcile and summarize, and someone still has to check the result. Amendment hands it fields and the official source.

The companies lobbying on a bill come from joining Senate LDA filings to SEC registrants. The companies whose 10-K names a bill or a code section come from reading the filings themselves. Because the records are already linked, the next question is one more lookup, not a fresh search.

One question

“I own NVIDIA. Which export bill is closest to law, and who else does it hit?”

1. The holding
   • NVIDIA
2. Its export bills
   • Chip Security Act
   • AI OVERWATCH Act
   • Remote Access Security Act
3. The law under all three
   • Export Control Reform Act
4. Lobbied on the House-passed bill
   • Synopsys
   • Oracle
   • Alphabet

Who it’s for

Jobs spread across separate tools today, in one flow.

TeamThey askIn AmendmentElsewhere

• Funds and finance

  Which pending bills hit this company, and what law do they change? Ticker to lobbying filings and 10-K disclosures, to the bills named, to the code sections they amend, to the rules on those sections. A lobbying-by-ticker feed, a bill tracker and a legal research tool, joined by hand.

• Compliance and GRC

  What rules would this bill touch? Bill to the U.S. Code sections it amends, to the C.F.R. parts that rest on them. A policy bill page, then a lawyer in a research tool, or a GRC tool once the rule is final.

• Government relations

  Track this bill, then move people on it. Follow, get the status alert, launch an ask, supporters co-sign by text, delivery to officials, donations. A tracker plus its grassroots module, and donations in a separate payments tool.

• Newsrooms

  Which lobbyists gave to this bill’s sponsors? Bill to sponsors, to lobbyist contributions, to the clients lobbying on the same bill. A bill tracker for sponsors and a money site for contributions, matched in a spreadsheet.

• Legal and product

  Answer a legal or policy question inside our own AI agent. Any MCP client: search, resolve a citation, read a section’s history, and show cards for bills, law, companies and politicians. One MCP vendor for bills, another for legal research, a third for market data. No shared keys.

• Wealth platforms

  Did the new tax law change anything for this client? The enacted law, the code sections it amended and the dates, in words an advisor can repeat. A model reading web pages, and an advisor checking its work.

Against the field

Policy trackers, legal research and market data each hold part of it.

We compared Amendment with eleven vendors: seven policy trackers, two legal and compliance research services, and two market-data services.

Coverage
Federal bills
State bills, all 50 states
Municipal codes
Federal law as citable sections
State law as citable sections
Federal bills linked to the law and rules they change
Rulemaking and the Federal Register
Case law
Money and companies
Federal lobbying filings
Lobbying joined to bills, law and rules
Public companies tied to policy
Lobbyist contributions to politicians
Alerts and action
Bill status alerts
Alerts on law sections, new bills and new rules
Alerts when a company lobbies on a new bill
Alerts by webhook or chat
Asks, positions and endorsements
Donations
Access
AI research assistant
Human analysts and news
Public API
MCP server for AI clients

Alerts

Know when the record moves.

Follow a bill, a politician or an organization. When its record changes, the alert lands in your inbox, which your AI can read for you.

Inbox

• H.R. 5334 Lindsey O. Graham Sanctioning Russia and Iran Act of 2026
• H.R. 6644 21st Century ROAD to Housing Act
• H.R. 6875 AI OVERWATCH Act

Two ways in

A connector for your team’s AI. An API for your product.

MCP connector

For Claude and any MCP client. No key to manage, no config file to edit.

1. 1In Claude, open Settings → Connectors → Add custom connector, and paste the connector URL from the top of this page.
2. 2Sign in with your Amendment account.
3. 3Ask. Your AI calls Amendment and shows bill, law and company cards in its answer.

GraphQL API

The data behind the connector’s tools, through GraphQL, for your own product or pipeline. On the Data plan today.

A few of the 24 tools

resolve_citation

“26 U.S.C. § 530A”

get_history

public laws that amended it

neighbors

AMENDS · CITES · LOBBIED_BY

rank_lobbying_spend

top spenders this year

get_lobbying_spend

one company, by year and issue

What the connector can do

• Find it

  Turn a name, bill number or citation into the record. Search bills and law text. See what each legislature holds and how fresh it is.
  • find
    • search
    • list_items
    • list_collections
    • get_coverage

• Read it

  A bill with its stage and last action, sponsors and votes. Every version with its source link, and the full text of federal bills. The exact section a citation names, and every law that amended it.
  • get_item
    • get_text
    • resolve_citation
    • get_history

• Trace the links

  One hop out from any bill, law, company or legislator, along 47 kinds of link: what it amends and cites, who sponsored it, who voted, who lobbies on it. Each link says why.
  • neighbors

• Follow the money

  A public company’s federal lobbying by year and issue, and the top spenders on any issue, joined to its SEC filings.
  • get_lobbying_spend
    • rank_lobbying_spend

• Watch it move

  Follow a bill, legislator or organization and read what changed.
  • follow
    • unfollow
    • list_follows
    • get_inbox
    • mark_read

• Show it

  Interactive cards drawn in the answer, each linked to its source or its Amendment page. Clients that don’t draw cards get a short text summary. The company and lobbying rank cards are on Professional and Data.
  • show_bill
    • show_law
    • show_politician
    • show_sources
    • show_follows
    • show_companies
    • show_lobbying_rank

Built not to guess

Four ways an AI answer on legislation goes wrong, and what we return instead.

It calls a bill law

The enacted flag turns true only when the record has a public law number and date. Until then, it’s a bill.

It misreads the stage

The AI OVERWATCH Act still reads Introduced after a 42 to 2 committee vote. We return the stage and the last action side by side, each with its own date.

It summarizes old text

The summary of the ROAD to Housing Act predates the text that became law, and the record flags it.

It reads a gap as a clean result

An empty answer says which case it is: no match, nothing held or a failed lookup.

Sign-in and plans

Try it free. A plan when your team builds on it.

Compare plans

Sign in, no keys

The connector signs in with your Amendment account through OAuth, the same one your team uses on the web.

Your plan sets your tools

Pick your organization at sign-in. Its plan decides which tools your AI sees, and everyone on the team gets the same ones.

Reads public records

The connector writes only your follows and read marks, and your client asks before it removes a follow.

Run it on your own questions.

Ask us for the 60-second side-by-side and a pilot. We set up the connector for your organization, and your team runs its real questions through it.