Coming from the v1.2 API

If you read Wefunder data through the legacy /api/v1.2/companies and /api/v1.2/fundraise/{id} endpoints (a static access_token query parameter), this page maps every field you get there to where it lives in this API. Authentication, paging and the Explore endpoints themselves are covered in Build a Deal Aggregator with the Explore API.

Two differences apply everywhere:

• Ids are opaque strings. A company is co_… and a round is an offering, ofr_…. There are no integer ids in this API.
• Money is a decimal string in USD ("1235000"), never a number. Parse it as a decimal, not a float.

Company fields

/api/v1.2/companies → GET /companies/{id} (data.attributes).

v1.2	This API	Notes
id	data.id	co_…
common_name / name	name
legal_name	legal_name	As the company entered it. The name on its filed Form C is business.legal_name in GET /companies/{id}/disclosures.
tagline	tagline
card_photo_url	card_image_url	Absolute URL, or null.
city, state	location.city, location.state	Plus location.country.
company_type	legal_form	Free text, not normalized. The filed Form C's value is business.legal_form in /disclosures.
ein	—	Not served. It is on the company's filed Form C.
home_url (company_url)	website_url	Always an absolute URL, or null.
wefunder_url	url	The company's Wefunder page.
facebook_url, twitter_url	facebook_url, twitter_url	Always absolute URLs (a stored handle is expanded), or null. linkedin_url and instagram_url are also served.
privacy_search / public	promotion_opt_in	Whether the company asked to be promoted as widely as possible. false does not hide anything you can fetch, but the company has asked not to be promoted.
what_we_do, our_ambition, quick_facts	—	Not served as separate fields. The company's own narrative is GET /companies/{id}/pitch.
tags	industries, business_models on each offering	The curated tags the Explore page filters by.
fundraise_ids	wefunder_rounds[].offering_id	Every round the company ran on Wefunder that you may see, live and closed.

Round fields

v1.2 round fields (from /api/v1.2/fundraise/{id} and the v1.2 companies payload) → GET /offerings/{id} (data.attributes). GET /explore returns the same offering shape for every live round.

v1.2	This API	Notes
id / fundraise_id	data.id	ofr_…
company_id, company_name	data.company, company_name	data.company is the co_… id.
exemption	exemption	{ family, subtype, label }, e.g. reg_cf / "Reg CF".
ttw / is_testing_the_waters	testing_the_waters	A testing-the-waters round takes reservations, not investments.
state	status	upcoming, open, closed or canceled.
start_at / start_date	started_at
close_at / end_date	closes_at while open, closed_at once closed	A round can stay open past closes_at. Use status to tell whether it accepts investments.
funding_target	funding_target
max_funding_target	max_funding_target	For a Reg CF round, the Form C maximum. Otherwise the maximum the company set, or null.
min_purchase	min_investment
funding_progress / amount_raised_on_wefunder	amount_raised	This offering only. For the company's combined live rounds, use current_raise.amount_raised on GET /companies/{id}.
total_amount_raised_on_and_off_wefunder	totals.profile_total_raised on GET /companies/{id}	The number on the company page's ticker.
number_of_investors	investor_count
oversubscribed	current_raise.oversubscribed on GET /companies/{id}	Or compare amount_raised with funding_target.
latest_form_c_url	form_c_url	The latest accepted Form C or Form C/A on SEC EDGAR. Reg CF only.
use_wefund, wefund_legal_name	spv_legal_name	The SPV investors hold through. Null means they hold the security directly.
funding_portal_id, funding_portal_name	—	Not served. Every Wefunder Reg CF round is offered through Wefunder Portal LLC.
primary_fundraise_id, testing_the_waters_fundraise_id	current_raise.offering_id and current_raise.offering_ids on GET /companies/{id}	The live round the company page shows, and every live round combined with it. Each offering's testing_the_waters and exemption say which is which.
security and its terms (safe_cap, note_rate, security_price, …)	security	{ type, label, terms }, typed by security. See the Security schema in the API reference.
api_notes	—	Not served.