How many addresses per call?

1 to 50 in one POST body (OpenAPI maxItems 50).

Settlement only when the handler status is below 400. A 400 invalid_body after payment is not settled. 503 sanctions_list_unavailable is not settled.

Is batch cheaper than 50 single calls?

At list prices: 50 x $0.005 = $0.25 versus one batch at $0.10. Prices are the fixed USD amounts in OpenAPI; refresh on publish day.

Does no match clear the wallet?

No. Same informational caveat as the single screen. No match does not mean the wallet is clean.

Docs / OFAC SDN batch screen

How do I batch-screen up to 50 wallets against OFAC over x402?

Meridian by MioDio exact-matches 1 to 50 digital-currency addresses against public OFAC SDN entries in one POST for $0.10 USDC on Base via x402. It is informational only; invalid body after payment is not settled.

Request body

JSON body required:

addresses: array of strings, max 50 items
chain: optional string (same chain hint rules as the single screen)

Call it (curl + 402)

curl -i -X POST "https://meridian.miodiollc.com/v1/sanctions/batch" \
  -H 'content-type: application/json' \
  -d '{"addresses":["0x0000000000000000000000000000000000000001","0x098B716B8Aaf21512996dC57EB0615e2383E2f96"]}'

Route: POST /v1/sanctions/batch. Unpaid -> HTTP 402 + PAYMENT-REQUIRED. Retry with PAYMENT-SIGNATURE.

Paid 200 is a sanctions_batch card: product, card, version, results[] (each a sanctions_screen with address, chain, match, sdn_entries[] (name, program, list_date), list_version, list_updated_at, freshness_hours, sources, disclaimer, no_match_note, warnings), plus batch-level count, list_version, list_updated_at, freshness_hours, sources, disclaimer, no_match_note, and warnings.

Price vs single screen

$0.10 USDC on Base (~100000 atomic) for one batch of up to 50 addresses. Single screen is $0.005 per address. Network eip155:8453. Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. payTo 0x4DA1ED782BD61BaE9AdD5a5CaBbCf32f767f8d7F.

Errors and settlement rules

400 invalid_body after payment: not settled.
503 sanctions_list_unavailable: not settled.
Settlement runs only when handler status is below 400.

What it does NOT do

Meridian by MioDio never holds keys, does not sign user transactions, and does not move funds.
Not financial, legal, or compliance advice. Screens, drift, and simulation are informational and point-in-time where that applies.
Not a substitute for a compliance program.
No MCP server and no SDK are available today.

FAQ

How many addresses per call?: 1 to 50 in one POST body (OpenAPI maxItems 50).
When am I charged?: Settlement only when the handler status is below 400. A 400 invalid_body after payment is not settled. 503 sanctions_list_unavailable is not settled.
Is batch cheaper than 50 single calls?: At list prices: 50 x $0.005 = $0.25 versus one batch at $0.10. Prices are the fixed USD amounts in OpenAPI; refresh on publish day.
Does no match clear the wallet?: No. Same informational caveat as the single screen. No match does not mean the wallet is clean.