Federal agencies
API · /fedregister-api
US Federal Register API
healthy
4,452 Subscribers
The US Federal Register as an API — the official daily journal of the United States government, live from federalregister.gov. Search the full record of federal rules, proposed rules, public notices and presidential documents (including executive orders) by keyword, document type, issuing agency and publication-date range; fetch any document by its number with title, abstract, agencies, publication and signing dates, executive-order number and links to the official HTML and PDF; and list the 470+ federal agencies. Ideal for legal-tech, compliance, regulatory-monitoring, government-transparency, policy-research and news applications. Public-domain US government data.
api.oanor.com/fedregister-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 253 ms
- Server probes · 24h
- Subscribers
- 4,452
- active
- Total calls
- 76
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 3,600 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- 3,600 calls/month
- 2 req/sec
- Search + document + agencies
- No credit card
Starter
€5.20 /month
- 49,000 calls / month
- 8 requests / second
- Hard cap (429 above quota, no overage)
- 49k calls/month
- 8 req/sec
- Type / agency / date filters
- Email support
Pro
€14.80 /month
- 255,000 calls / month
- 20 requests / second
- Hard cap (429 above quota, no overage)
- 255k calls/month
- 20 req/sec
- Compliance / regulatory monitoring
- Priority support
Mega
€37.50 /month
- 1,230,000 calls / month
- 50 requests / second
- Hard cap (429 above quota, no overage)
- 1.23M calls/month
- 50 req/sec
- Legal-tech / policy platform
- Dedicated SLA
Built by
Related APIs
Other APIs with overlapping tags.
Sweden Municipal Statistics API
Swedish municipal and regional statistics straight from Kolada — the open database run by the Council for the Promotion of Municipal Analyses (RKA) — no key, read live. Kolada holds roughly 6,000 key performance indicators tracking the finances and service quality of all 290 Swedish municipalities and 21 regions: personnel costs, school results, elderly care, waiting times, environment, demographics and much more. The kpis endpoint lists and searches the indicator catalogue by title. The kpi endpoint returns the full metadata of a single indicator (its definition, operating area and source). The municipalities endpoint lists every municipality and region with its official code. The data endpoint returns a chosen indicator's full annual value series for a given municipality, with the latest value highlighted. The meta endpoint documents the API. Live data from Kolada v3, lightly cached. Live. 5 endpoints. This serves Swedish public-sector statistics; for the krona exchange rate or national CPI use an FX / national-statistics API.
api.oanor.com/kolada-api
US Federal Fiscal API
Live US federal fiscal data from the US Treasury's official FiscalData API — the cost-and-flow side of US public finance. Get the federal budget deficit or surplus by month for the current fiscal year (receipts, outlays and the net) from the Monthly Treasury Statement; the interest the United States pays to service its national debt, by month and fiscal-year-to-date, broken down by security type; and the average interest rate the Treasury pays on each class of its debt (Bills, Notes, Bonds, TIPS) plus the weighted overall rate. Live, no key, nothing cached. Distinct from debt-level (debt-to-the-penny) and auction feeds — this is the deficit, the interest bill and the average rate on the debt.
api.oanor.com/usfiscal-api
Oyez Supreme Court API
The US Supreme Court as an API, powered by Oyez — clean JSON, no key. Browse cases by term and open any case for its full detail: the parties, the facts, the legal question, the conclusion, a dated timeline, the lower court, and the decision with each justice's individual vote and opinion. Pull the oral-argument transcript for a case — every speaker turn with start/stop timestamps and a link to the audio — ideal for analysis, search and captioning. List all the justices and open a justice's profile (dates, places, seats held). Live data straight from oyez.org, the definitive multimedia archive of the Supreme Court. Distinct, authoritative civic data — ideal for legal-tech, research, education, news and civic apps. 5 data endpoints. Authenticated with an x-oanor-key; fair-use rate limits per plan.
api.oanor.com/oyez-api
Canada Parliament API
The Parliament of Canada as an API, powered by openparliament.ca. Browse the Members of Parliament of the House of Commons with their party, riding (electoral district) and province; read an MP's profile including contact details, current party and riding, and full membership history; browse bills by parliamentary session (number, title, date introduced); read a bill's details (sponsor, LEGISinfo id, whether it is a private member's bill, and whether it became law); browse recorded votes (divisions) with their result and yea/nay totals; and list the Hansard debate days. The open database that tracks Canadian federal politics. Ideal for civic-tech and transparency apps, political journalism and dashboards, voting-record and legislation trackers, and research on Canadian democracy. Sessions look like 45-1. Data from openparliament.ca.
api.oanor.com/canparl-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for US Federal Register API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call US Federal Register API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for US Federal Register API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does US Federal Register API cost?
US Federal Register API has a free tier with 100 calls / month. Paid plans start at €5.20 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is US Federal Register API GDPR-compliant?
All requests to US Federal Register API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/fedregister-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/fedregister-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/fedregister-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/fedregister-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
Sign in to rate.
No reviews yet.
Discussion
Ask questions, share usage tips, get answers from the provider and other developers. Public — anyone can read.
Sign in to start a thread or reply.
Sign inNew thread
📌 Pinned
🔒 Locked
·
·
·
-
Provider answer
🔒 This thread is locked — no new replies.
-
·
- No threads yet — start the discussion.
Support
Private 1:1 support with the provider — billing questions, integration issues, account problems. Only you and the provider team can see these threads.
Sign in to open a support ticket.
Sign inOpen new ticket
Describe what you need help with. The provider team gets an email and replies on the ticket page.
-
·
Urgent - No tickets yet for this API.