Search signals

GET /v1/signals/feed

Morning feed

Every signal after a cursor, in the order it arrived. Keep next_cursor and poll each morning: you never miss or repeat one. Optional type filter; limit up to 500.

curl "https://api.daybreakleads.com/v1/signals/feed?limit=500" \
  -H "Authorization: Bearer sk_…"
# then send next_cursor back as ?cursor=…

GET /v1/signals/export

Export as CSV

The same query as Search signals, as a CSV file of up to 5,000 rows: publication date, signal, company, place, amount, stage and a link to the original record.

curl -o signals.csv "https://api.daybreakleads.com/v1/signals/export?type=company.incorporated&country=GB&within_days=1" \
  -H "Authorization: Bearer sk_…"

GET /v1/signal-types

Signal types

Every signal type, what it means and the family it belongs to. No key needed.

curl https://api.daybreakleads.com/v1/signal-types

Public money and 8-K

Signals from public money and from 8-K current reports arrive in /v1/signals and the morning feed like every other signal. Filter with type. Contains public sector information licensed under the Open Government Licence v3.0.

Amounts

Every signal has amount, currency and amount_usd, null when it has no money. Only these carry money: funding.filed, funding.amended and funding.progressed from SEC Form D and Form C (the amount sold, in US dollars), contract.awarded (the contract's value in its own currency, usually GBP or EUR) and grant.awarded (the grant in GBP). Never: a Companies House share allotment (funding.filed with details.form SH01 states the company's whole issued capital, not money raised), funding.debt_raised (a charge states no amount), or any other type. amount_usd converts a contract or grant at the European Central Bank's euro reference rate of its publication day, or the latest one before it on a weekend or holiday (details.fx says which), and is what min_amount, max_amount and sort=amount use across all of them. A missing or zero amount is never read as zero: it matches no amount filter and sorts last.

{
  "type": "contract.awarded",
  "what_changed": "£233k · from Kirkdale District Council · Website hosting and support",
  "evidence_url": "https://www.find-tender.service.gov.uk/Notice/031877-2026",
  "amount": 233400, "currency": "GBP", "amount_usd": 296021,
  "details": {
    "buyer": "Kirkdale District Council",
    "title": "Website hosting and support",
    "value": 233400, "currency": "GBP",
    "period_start": "2026-10-01", "period_end": "2029-09-30",
    "cpv": "72415000", "sme": true,
    "notice_url": "https://www.find-tender.service.gov.uk/Notice/031877-2026",
    "fx": { "source": "ECB", "rate_on": "2026-09-29", "usd_per_unit": 1.268280 }
  }
}

{
  "type": "grant.awarded",
  "what_changed": "£250k · from Innovate UK · Heat-pump controls for social housing",
  "amount": 249870, "currency": "GBP", "amount_usd": 316905,
  "details": {
    "competition": "Smart grants: August 2026",
    "project_title": "Heat-pump controls for social housing",
    "award": 249870, "currency": "GBP",
    "start_on": "2026-11-01", "end_on": "2028-10-31",
    "project_number": "10201004",
    "fx": { "source": "ECB", "rate_on": "2026-09-29", "usd_per_unit": 1.268280 }
  }
}

{
  "type": "officer.changed",
  "what_changed": "Executive or director change (8-K 5.02)",
  "details": {
    "items": ["5.02", "9.01"],
    "form_url": "https://www.sec.gov/Archives/edgar/data/2000001/000200000126000014/larkspan-8k.htm",
    "filed_on": "2026-09-25"
  }
}

{
  "type": "company.auditor_changed",
  "what_changed": "Changed auditor (8-K 4.01)",
  "details": { "items": ["4.01", "9.01"], "form_url": "https://www.sec.gov/…", "filed_on": "2026-09-25" }
}

{
  "type": "company.acquisition_completed",
  "what_changed": "Completed an acquisition or sale of assets (8-K 2.01)",
  "details": { "items": ["2.01", "9.01"], "form_url": "https://www.sec.gov/…", "filed_on": "2026-09-25" }
}

{
  "type": "owner.changed",
  "what_changed": "Change in control",
  "details": { "items": ["5.01"], "form_url": "https://www.sec.gov/…", "filed_on": "2026-09-25" }
}

GET /v1/signals?type=funding.progressed

Raise progress and crowdfunding

funding.progressed means a raise moved: a Form D amendment that sold more than the filing it amends, or a crowdfunding progress update that states an amount. amount_usd is the amount sold now; details carry previous_amount_usd, offering_amount_usd, previous_accession, fully_raised and indefinite. Crowdfunding rounds arrive as funding.filed with details.regulation reg_cf, portal, target_usd, maximum_usd, deadline, employees and revenue_usd; the website the filing states becomes the company's website.

curl "https://api.daybreakleads.com/v1/signals?type=funding.progressed,funding.filed&within_days=7" \
  -H "Authorization: Bearer sk_…"

GET /v1/companies/search

Search companies

The same query parameters as Search signals, one row per company: its most important matching signal (funding first, officers last), how many signals matched and of which kinds, and its website. This is what the app shows. /v1/companies/export gives the same as CSV.

curl "https://api.daybreakleads.com/v1/companies/search?type=company.incorporated&country=GB&has_website=false&within_days=30" \
  -H "Authorization: Bearer sk_…"

GET /v1/companies/{id}

Get a company

What the company reported to its registry, every signal about it, newest first, and the people named in its filings. The id is company.id on any signal.

curl https://api.daybreakleads.com/v1/companies/{company_id} \
  -H "Authorization: Bearer sk_…"

POST /v1/companies/{id}/website-search

Find a website

Every company's own website is found automatically and checked against its filing: phone, postcode, name and city on the homepage. It appears as website on Get a company. This call answers with the website when known; for a company not yet reached it starts the search now. Call again in a minute.

curl -X POST https://api.daybreakleads.com/v1/companies/{company_id}/website-search \
  -H "Authorization: Bearer sk_…"

GET /v1/people

List people

Officers, directors and promoters named on Form D filings, newest filing first. Filter by q (name), within_days and state; page and per_page as for signals.

curl "https://api.daybreakleads.com/v1/people?within_days=7&state=CA" \
  -H "Authorization: Bearer sk_…"

GET /v1/people/{id}

Get a person

One person: every role with the filing it came from. Ids look like per_ followed by 16 hex characters and appear as person_id on a company's officers.

curl https://api.daybreakleads.com/v1/people/{person_id} \
  -H "Authorization: Bearer sk_…"

POST /v1/people/{id}/contact-search

Find contact details

Looks up one person's verified work email, only when you ask. Answers 200 with the result when one is on file for your team, or 202 with a search id while it runs in the background, usually under a minute. Needs contacts switched on for the account, the owner's acceptance of the contacts terms, and a key with the daybreak.contacts scope. Addresses the mail server cannot confirm are never returned.

curl -X POST https://api.daybreakleads.com/v1/people/{person_id}/contact-search \
  -H "Authorization: Bearer sk_…"

GET /v1/contact-searches/{id}

Read a search

The search's status (queued, searching, found, not_found, skipped, failed), the step it is on, and the contact once found, with where each part came from and the rule that applies to your send. GET /v1/contact-searches lists your team's searches this month.

curl https://api.daybreakleads.com/v1/contact-searches/{search_id} \
  -H "Authorization: Bearer sk_…"

GET /v1/contacts/export

Export contacts

Every verified address your team was shown, as CSV: person, company, email, verified date, filing and sender rule. Report a bounce or an unsubscribe with POST /v1/contacts/{id}/outcome.

curl -o contacts.csv https://api.daybreakleads.com/v1/contacts/export \
  -H "Authorization: Bearer sk_…"

POST /v1/webhooks

Webhooks

Receive contact_search.completed, person.removed and website.found as they happen. Each delivery is signed: X-Daybreak-Signature: sha256=… is the HMAC-SHA256 of the body with the secret returned once when you create the webhook. When you receive person.removed, delete that person from your tools.

curl -X POST https://api.daybreakleads.com/v1/webhooks \
  -H "Authorization: Bearer sk_…" \
  -H "Content-Type: application/json" \
  -d '{"url":"https://hooks.example.com/daybreak","events":["contact_search.completed","person.removed"]}'

GET /v1/lists

Lists and stages

The companies your team keeps, each list with its stages (open, won or lost) and counts. Every account starts with Prospects. POST /v1/lists creates one from a template (sales, investing, simple or blank); stages are added, renamed and reordered under /v1/lists/{id}/stages.

curl https://api.daybreakleads.com/v1/lists \
  -H "Authorization: Bearer sk_…"

POST /v1/lists/{id}/entries

Companies on a list

Save a company with {"company_id"}; use default for the account's first list. PATCH an entry to move it to a stage, set an owner or a next-step date; POST notes to its timeline; GET /v1/lists/{id}/export for CSV. Webhooks list.entry_added, list.entry_moved and list.entry_signal tell your tools.

curl -X POST https://api.daybreakleads.com/v1/lists/default/entries \
  -H "Authorization: Bearer sk_…" \
  -H "Content-Type: application/json" \
  -d '{"company_id":"{company_id}"}'

Authentication

Send an API key as a Bearer token. Create one on API keys. Keys read signals, companies and people; a key needs the daybreak.contacts scope to search contact details. Keys cannot create other keys.

Limits

With a founding membership: 10,000 requests a month per account and 120 a minute per key. Past either, calls return 429 with a Retry-After header. Without a membership, calls return 402 with the code payment_required.

MCP server

The same data as tools for agents, at https://api.daybreakleads.com/v1/mcp. Set it up on Connect MCP.

Your details

Anyone named in a filing can see what we hold about them and remove it, with no account, at Your details.