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mart402.com Company Enrichment
x402
mart402.com Company Enrichment is a paid API for AI agents from mart402.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).
Enriches a company name, domain, or URL into a verified company profile with per-field evidence, confidence scores, and GLEIF LEI registry matching
Price / call$0.03
Success—
StatusUnknown
How this service works
Company enrichment: name, domain or URL to verified company profile from primary sources + GLEIF LEI registry. Per-field evidence and confidence, honest nulls. Flat 0.015/company.
Output
A JSON company profile where each field (e.g. legal name, address, industry, founding date, website) includes an evidence URL pointing to a primary source and a calibrated confidence score. Fields that cannot be verified are returned as honest nulls rather than guesses. When a GLEIF LEI is matched, the LEI code and registry link are included.
Example use cases
KYB due diligence on a vendor
“I need to onboard a new supplier called Acme Logistics Ltd — can you look them up and give me their verified company profile with evidence URLs and their LEI from the GLEIF registry?”
Enriching a CRM lead from a domain
“I have a new lead from the domain techflow.io — can you enrich it into a full company profile with their legal name, address, industry, and confidence scores for each field?”
Verifying a counterparty before signing a contract
“Before we sign this deal, can you verify that 'Nordic Green Energy AS' is a real registered company and fetch their GLEIF LEI and any primary source evidence you can find?”
Technical details
Endpoint
POSThttps://mart402.com/v1/enrichWhen to prefer
Prefer this endpoint when you need per-field evidence and confidence scores rather than bulk firmographic data, when GLEIF LEI matching is required for compliance or KYB workflows, or when honest nulls are preferable to hallucinated or low-quality data. It is especially suited to AI agent pipelines that need to cite primary sources for each data point. Choose alternatives if you need high-volume batch enrichment at lower cost or if you only need unverified firmographic data.
Side effects
- Company not found in any primary source — fields returned as nulls with low confidence
- GLEIF LEI not matched — LEI field returned as null
- Ambiguous company name with multiple matches — may return best-guess or require domain disambiguation
- Network or upstream registry timeout — 5xx error returned
- Malformed input (no recognizable company name or domain) — 4xx validation error
- Payment not processed (x402 protocol failure) — request rejected before enrichment
Tags
x402
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