Overview
Verified private company and market data with receipts. Current facts, dated change history, and cryptographic proof, over REST and MCP.
Your first call needs no key and no signup:
curl https://api.bixel.com/v1/companies/pinecone.ioThat returns the company's full current state — pricing, features,
security posture, positioning, stack, hiring, reliability, funding,
location, and legal terms — every fact carrying its provenance, an
as_of date, and the source page it came from. Most facts point at a
stored capture you can verify cryptographically. The
Quickstart takes you from this call to an agent with
all 18 tools in about three minutes.
The ways in:
| Surface | Auth | What you get |
|---|---|---|
| Open REST | none | Current state per company, tracked-tier liveness for millions more, masked change feed, proof bundles |
| Keyed REST | free API key | Values and summaries unmasked for the last 90 days of history |
| Pro REST | Pro key | The full archive — history depth back to the earliest event |
| MCP server | free account | All 18 tools in your agent, over OAuth sign-in or an API key |
The base URL is https://api.bixel.com/v1. The MCP endpoint is https://api.bixel.com/mcp. A ready-made Postman collection is generated from the live contract.
Where to start
- Quickstart makes your first call in under a minute, keyless.
- Authentication, keys and tiers covers keys, OAuth, quotas, and metering.
- The data model explains dimensions, provenance, and the change feed's guarantees.
- Connect over MCP wires Bixel into Claude, Cursor, or any MCP client.
- How verification works shows what a proof bundle attests and how to check one offline.
- Errors lists every problem code and what to do about it.
- API reference is generated from the live OpenAPI contract.
Identity
Every company Bixel holds has a permanent Bixel ID (bxc_ + 12 characters) and a kind: a brand (the operating presence people look up by its name or domain) or a legal_entity (a registered company on an authoritative register). GET /v1/resolve turns a name, a domain or URL, an email, a LinkedIn or Crunchbase URL, an LEI or a Wikidata QID into that ID, with an evidence tier and the reason for any non-answer. Identity is free and unmetered on every plan; the identity guide has the rules, the result types and the attribution block.
The contract
https://api.bixel.com/v1/openapi.json is the normative contract, served by the deployed API itself. The reference section renders from the same document, so it cannot drift from what the API does.