EMMA Municipal Bonds Scraper

Scrape municipal bond securities from EMMA (Electronic Municipal Market Access) — the official SEC-designated disclosure platform for the US municipal securities market, operated by the Municipal Securities Rulemaking Board (MSRB).

What It Does

This actor navigates emma.msrb.org — the authoritative, freely accessible repository of US municipal bond data. For each bond security it extracts:

• Issuer Name — name of the municipal bond issuer (city, county, state agency, utility district, etc.)
• Security Description — series name and bond type (e.g. "SR-MEASURE BB", "GO BONDS SERIES A")
• State — full state name and two-letter state code
• Principal Amount — total face value of the bond offering (e.g. $4,785,000)
• Coupon Rate — annual interest rate paid to bondholders (e.g. 5%)
• Maturity Date — date when the bond principal is repaid (MM/DD/YYYY)
• Dated Date — date from which interest begins to accrue (MM/DD/YYYY)
• Offering Price — initial price as a percentage of par value (e.g. 102.167%)
• Offering Yield — yield to maturity at the offering price (e.g. 1.53%)
• Credit Ratings — whether Fitch, Moody's, S&P Global, and KBRA ratings exist for the bond
• Security URL — direct EMMA page link for full prospectus and disclosure documents

Use Cases

• Fixed-income research — build structured databases of municipal bond offerings by state, issuer, or yield
• Credit analysis tools — identify rated vs. unrated bonds and cross-reference rating agencies
• Investment screening — filter bonds by state, maturity horizon, coupon level, or principal size
• Public finance analytics — track municipal borrowing activity by jurisdiction over time
• Compliance and due-diligence — verify offering details against EMMA's official disclosure records

Input

Field	Type	Default	Description
states	array of strings	["CA"]	Two-letter US state/territory codes to scrape (e.g. ["CA", "NY", "TX"]). Accepts all 50 states plus DC, GU, PR, VI.
maxItems	integer	100	Maximum number of bond records to return. Set to 10 for a quick test.

Output

Each item in the dataset contains:

{
  "issuerName": "ALAMEDA COUNTY TRANSPORTATION COMMISSION",
  "securityDescription": "SR-MEASURE BB",
  "stateName": "California",
  "stateCode": "CA",
  "principalAmount": "$4,785,000",
  "couponRate": "5%",
  "maturityDate": "03/01/2023",
  "datedDate": "07/14/2022",
  "offeringPrice": "102.167%",
  "offeringYield": "1.53%",
  "fitchRating": "",
  "moodysRating": "",
  "spRating": "",
  "kbraRating": "",
  "securityUrl": "https://emma.msrb.org/Security/Details/A60477195F2E8C188281BB5745B77C8EE",
  "scrapedAt": "2026-06-05T14:55:54.680Z"
}

Rating fields contain "rated" if a rating from that agency exists for the bond, or an empty string if unrated. MSRB renders the actual rating values as images for licensing reasons — the presence/absence signal is available from the data.

About EMMA

EMMA is operated by the Municipal Securities Rulemaking Board (MSRB) under SEC designation as the official disclosure repository for US municipal securities. All data is sourced directly from official MSRB disclosures. The actor scrapes only publicly available data — no authentication or subscription is required.

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