Check a US EIN's format and whether its 2-digit prefix is one the IRS assigns. F...
https://bank-validators.x402tookit.com/ein-formatOverview
Check a US EIN's format and whether its 2-digit prefix is one the IRS assigns. Format only, not existence.
Protocol
x402
Price
$0.02
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Bank and Tax ID Validators
Source
bazaar
Indexed
2026-11-01 23:12:13
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"ein": "12-3456789"
},
"type": "http"
}
Output Schema
{
"example": {
"asOf": "2026-10-21T00:36:48.859Z",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"formatted": "12-3456789",
"issuingCampuses": [
"Andover"
],
"notChecked": [
"whether the EIN was ever issued or belongs to a real entity (the IRS publishes no lookup)",
"that the prefix list is current (the IRS can add prefixes)",
"…1 more"
],
"prefix": "12",
"reasons": [
"EINs have no check digit, so only the prefix and layout can be checked.",
"The prefix reflects the IRS campus that issued it, not where the entity is."
],
"source": "computed locally",
"summary": "12-3456789 has a valid format and an IRS-assigned prefix (12). This does not confirm the EIN exists.",
"verdict": "VALID_FORMAT"
},
"type": "json"
}