Tool detail
OnChainDiligence
Evaluates a caller-supplied payment against a structured policy plus optional sanctions screening, returning ALLOW, REQUIRE_APPROVAL or BLOCK with a signed receipt.
Categories: Payments, Compliance screening
Use when
- check a payment against a compliance policy before authorizing it
- screen a payment recipient for sanctions exposure before sending
Not for
- not an execution step — never holds, moves or authorizes funds itself
Inputs
POST JSON body: action, policy, options, references (all objects; which are required is not specified)
Inputs undocumented: open object without declared properties
Endpoint
- Method
POST- URL
https://mcp.onchaindiligence.com/x402/preflight-payment
Payment
- Protocol
- x402
- Listed price
- 0.01 USDC per call on Base
- Payment method
- exact
- Network
- eip155:8453
- Asset
- 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.
Source
- Directory
- Coinbase x402 Bazaar
- Record
- POST https://mcp.onchaindiligence.com/x402/preflight-payment
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z