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Agent Spend Controls – Approval Risk Gate & Wallet Limits
x402
Agent Spend Controls – Approval Risk Gate & Wallet Limits is a paid API for AI agents from wallet-portfolio-history-mcp.mtree.workers.dev, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Evaluates autonomous agent wallet spend requests against approval-risk gates, per-call/per-counterparty limits, burst signals, risky spender flags, and autopay policy using live allowance data and fresh wallet snapshots
Price / call$0.25
Success—
StatusUnknown
How this service works
Hosted agent spend controls for autonomous wallets: approval-risk gate, per-call and per-counterparty limits, wallet risk score, transaction-pattern burst signals, risky spender approvals, and autopay spend policy from fresh D1 wallet snapshots plus live allowance reads. Price 0.25 USDC on Base via x402. Demo: https://wallet-portfolio-history-mcp.mtree.workers.dev/demo/tools/agent_spend_controls. Contact: https://wallet-portfolio-history-mcp.mtree.workers.dev/contact.
Output
Returns an approval/risk gate decision including per-call and per-counterparty limit status, wallet risk score (0-100), burst/anomaly signals, risky spender approval flags, and an autopay spend policy recommendation derived from fresh D1 wallet snapshots and live on-chain allowance reads.
Example use cases
Example prompt
“Before my agent sends 50 USDC to 0xAbC123 on Base, run spend controls on wallet 0xMyWallet — check the per-call and per-counterparty limits, flag any burst signals or risky spender approvals, and tell me if the autopay policy allows this transaction.”
Technical details
Endpoint
POSThttps://wallet-portfolio-history-mcp.mtree.workers.dev/tools/agent_spend_controlsWhen to prefer
Use this endpoint when an AI agent needs a holistic, gate-style spend control check before executing a wallet transaction — combining limit enforcement, burst detection, risky-spender flags, and autopay policy in a single call rather than assembling individual risk signals separately.
Side effects
- Invalid or unrecognized wallet address returns an error or empty result
- Payment of 0.25 USDC on Base not received causes 402 rejection
- Wallet has no transaction history resulting in limited scoring signals
- Counterparty address not found in risk graph returns neutral/unknown rating
- D1 snapshot stale or unavailable causing degraded policy recommendation
Input
{
"input": {
"body": {
"chain": "base",
"limit": 10,
"address": "0x1234567890123456789012345678901234567890",
"refresh": false
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"ok": true,
"chain": "base",
"route": "/tools/agent_spend_controls",
"result": {
"chain": "base",
"source": "hosted D1 wallet snapshots + allowance risk + transaction-pattern + counterparty graph + spend-limit derivation",
"address": "0x1234567890123456789012345678901234567890",
"controls": [
{
"value": true,
"reason": "hosted D1 wallet snapshots refresh on cron and paid query",
"control": "fresh_snapshot_required"
},
{
"value": 100,
"reason": "standard_controls",
"control": "per_call_usd_limit"
},
{
"value": 60,
"reason": "standard_counterparty_cap",
"control": "per_counterparty_24h_usd_limit"
},
{
"value": false,
"reason": "low",
"control": "approval_review_required"
},
{
"value": false,
"reason": "no_risky_curated_approval_detected",
"control": "block_on_risky_approvals"
},
{
"value": false,
"reason": "failed-call and transaction-pattern telemetry",
"control": "manual_review_on_failed_tx_burst"
}
],
"control_band": "standard_controls",
"next_actions": [
"allow_standard_agent_spend_limits",
"refresh_before_new_counterparty_or_token_action"
],
"decision_inputs": {
"activity_risk_score": 0,
"risky_approval_count": 0,
"active_approval_count": 0,
"counterparty_risk_score": 0,
"spend_limit_policy_score": 0,
"token_approval_risk_score": 16,
"transaction_pattern_score": 0
},
"buyer_vocabulary": [
"agent spend controls",
"autonomous agent spend policy",
"wallet spend controls",
"approval risk",
"wallet approval risk",
"autopay spend policy",
"agent payment safety"
],
"dataset_fresh_at": "2026-06-19T04:43:45.000Z",
"recommended_agent_policy": "standard_autopay_limits_ok_with_periodic_refresh",
"agent_spend_control_score": 3
},
"address": "0x1234567890123456789012345678901234567890",
"service": "wallet-portfolio-history-mcp",
"freshness_score": 75,
"source_coverage": {
"rpc_native_balance": false,
"dataset_writes_to_d1": true,
"curated_erc20_balances": 2,
"protocol_watchlist_size": 4,
"rpc_native_balance_error": "HTTP request failed.\n\nStatus: 521\nURL: https://base.llamarpc.com/\nRequest body: {\"method\":\"eth_getBalance\",\"params\":[\"0x1234567890123456789012345678901234567890\",\"latest\"]}\n\nDetail",
"transaction_history_source": "base.blockscout.com",
"curated_defi_receipt_tokens": 3,
"transaction_history_supported": true
},
"dataset_fresh_at": "2026-06-19T04:43:45.000Z"
}Tags
x402
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