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Blockchain Money Map – Response Completeness Drift Ledger
x402
Blockchain Money Map – Response Completeness Drift Ledger is a paid API for AI agents from api.blockchainmoneymap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Records, compares, and verifies API response completeness drift facts against a tamper-evident ledger, tracking schema field presence over time.
Price / call$0.01
Success—
StatusUnknown
How this service works
Tracks hash-only completeness snapshots for paid-agent response contracts across releases.
Output
Returns a JSON object containing the ledger entry result — including confirmation of the stored or compared record, drift analysis (field count deltas, missing field codes), verification verdict, and any policy evaluation outcome. In compare mode, includes a diff of present vs reference facts. In verify mode, returns whether the stored record matches the declared contract hash.
Example use cases
Daily API completeness snapshot audit
“Record a completeness snapshot for our payment agent service in ledger 'ledger-payments-v2' — the response had 15 out of 20 required fields present, missing codes are ['fee','nonce','confirmations'], using schema hash sha256:deadbeef...01 and record ID 'snap-daily-2024-06-01'.”
Compare response drift against reference
“Compare today's agent API response completeness against the reference baseline in ledger 'ledger-agent-core-001' — current snapshot shows 18 present fields vs 22 required, reference had 22 out of 22, both using contract hash sha256:cafebabe...ff. Use mode 'compare' and record ID 'drift-check-june'.”
Verify schema contract compliance
“Verify that the stored ledger entry in 'ledger-compliance-audit' for record 'verify-rec-2024-07' still matches the original response contract hash sha256:11223344...ab — use mode 'verify' so I can confirm nothing has been tampered with.”
Technical details
Endpoint
POSThttps://api.blockchainmoneymap.com/api/x402/x402-paid-agent-response-completeness-drift-ledger?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a tamper-evident, blockchain-anchored record of API response completeness over time — specifically to detect schema drift, audit field presence against a contract, or verify that a prior snapshot has not been altered. Prefer this over simple logging when cryptographic verifiability and notarized ledger entries are required for compliance or agent service SLA tracking.
Side effects
- Invalid ledger_id or record_id format returns 400 validation error
- Missing required mode field causes request rejection
- schema_hash pattern mismatch (not sha256: prefix + 64 hex chars) causes validation failure
- idempotency_key collision returns cached prior result rather than new entry
- lookup_secret mismatch returns 403 unauthorized
- Payment failure via x402 protocol returns 402 with payment requirements
- Mismatched reference_facts in compare mode returns drift conflict error
- Missing present_field_count or required_field_count in snapshot mode may cause incomplete ledger entry
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | — | |
| facts | object | |
| policy | object | |
| ledger_id | string | |
| notary_id | string | |
| record_id | string | |
| lookup_secret | string | |
| idempotency_key | string | |
| reference_facts | object | |
| retention_class | string | |
| idempotency_scope_token | string |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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