SPAC API

The SPAC data API.
REST + streaming. Citation‑anchored.

2,209 SPACs. 31,115 SEC filings. Every JSON field traces to the filing line it came from. Free tier, no signup wall to read the docs.

Get an API key →Read the docs

TRY IT NOW

One curl. Real data.

No signup required for anonymous access. Copy this, paste it in your terminal, and get citation-linked SPAC data back.

Request

$ curl https://spacdesk.com/api/v1/spac/CHARU

With auth

$ curl https://spacdesk.com/api/v1/spac/CHARU \
  -H "Authorization: Bearer sk_live_…"

Response

{
  "symbol": "CHARU",
  "name": "Charlton Aria Acquisition Corp",
  "status": "combination_announced",
  "sponsor": "ST Sponsor II Limited",
  "trust_size": "75187500.00",
  "ipo_date": "2024-10-24",
  "citations": [
    {
      "field": "trust_size",
      "filing": "10-K",
      "accession": "0001…",
      "line": 42
    }
  ]
}

ENDPOINTS

Everything you need to automate SPAC research.

Endpoint	Description	Delivery	Auth
/api/v1/universe	Paginated SPAC universe with status, sponsor, trust	REST	Optional
/api/v1/spac/[symbol]	Full profile — trust, votes, redemptions, lockups, earnouts, PIPE, FPA	REST	Optional
/api/v1/calendar	Deadlines, votes, lockup expiries, extensions	REST	Optional
/api/v1/search	Fuzzy search across symbol, name, sponsor, CIK	REST	Optional
/api/v1/alerts	Trust drawdowns, redemption spikes, extension votes, deSPAC closings	REST	Required
/api/v1/alerts/stream	Live push within ~5s of alert evaluation	SSE	Required
/api/v1/news	Filing-derived + aggregated articles, entity-linked to SPACs	REST	Optional
/api/v1/news/stream	Live article push within ~10s of insert	SSE	Optional
/api/webhooks	Register HTTP callbacks for filing events and alert triggers	Webhook	Required

Rate limits

60 – 50,000/day

Scales from Free to Team tier

Streaming

SSE

Alerts + news, sub-30s latency

Webhooks

< 30s

From filing to delivery

USE CASES

Built for desks that automate.

SPAC arbitrage monitoring

Poll trust values and redemption rates daily. Stream alerts for extension votes, trust drawdowns, and yield-to-redemption changes. Feed your position-sizing model with citation-backed data.

Risk & compliance

Automated exposure tracking across the SPAC universe. Every data point traces to the SEC filing line — audit-ready by construction. Webhook alerts when filing events hit your portfolio.

Sponsor analytics

Build league tables, track sponsor families across deals, and benchmark promote structures, lockups, and FPA terms. 30 years of deal history in one API call.

Research automation

Pipe SPAC universe data into your internal tools. Filter by status, sector, trust size, or sponsor. Auto-generate deal summaries from the citation-linked dataset.

API PRICING

Start free. Scale when you need to.

Free

60 / day

Anonymous, no key

Indie

$49/mo

1,000 / day

Full universe + citations

Institutional

$1,499/mo

10,000 / day

+ webhooks + streaming

Team

$2,999/mo

50,000 / day

+ SSO + custom feeds

Annual billing saves 20%. Compare all plans →

SDKS

Plain HTTP. Official SDKs coming soon.

The API is standard REST + SSE — any HTTP client works. We're building typed SDKs for the languages desks use most.

Python

Coming soon

TypeScript

Coming soon

Planned

cURL

Works today

Import to your clientDownload Postman Download Bruno

FAQ

Questions about the API

What data does the SPAC API cover?

The full SpacDesk universe: 2,200+ SPACs with trust values, redemption rates, sponsor track records, lockups, earnouts, PIPE/FPA terms, extension votes, and deal timelines. Every field is citation-linked back to the SEC filing line it came from.

Is there a free tier?

Yes. Anonymous requests (no API key) get 60 calls per day against sample data. Sign up for a free account to access the full universe at 60 calls/day. Paid plans start at $49/mo for 1,000 calls/day.

How do I authenticate?

Generate an API key at /account after signing up. Pass it via the Authorization: Bearer header. Keys are revocable and usage is tracked per-key.

What formats does the API return?

JSON for REST endpoints. Server-Sent Events (SSE) for the /alerts/stream and /news/stream endpoints. Webhook delivery is JSON POST to your configured URL.

How fresh is the data?

Filings are ingested within minutes of hitting EDGAR. Trust values are recomputed nightly. Alert and news streams push within seconds of evaluation. Webhook delivery is sub-30 seconds from filing.

What are the rate limits?

Free: 60/day. Indie: 1,000/day. Institutional: 10,000/day. Team: 50,000/day. Enterprise: unlimited. 429 responses include Retry-After and X-RateLimit headers.

Are there official SDKs?

Not yet — Python and TypeScript SDKs are in development. The API is standard REST + SSE, so any HTTP client (curl, fetch, requests, httpx) works out of the box.

What does 'citation-anchored' mean?

Every data field in the API response includes a citation object pointing to the exact SEC filing, accession number, and line number where the value was sourced. You can verify any number against the original document.

GET STARTED

Your SPAC data pipeline, ready in 60 seconds.

Get an API key Read the docs →

The SPAC data API.REST + streaming. Citation‑anchored.