Policy decision API for pre-execution tool gating — submit a tool name + args +
Policy decision API for pre-execution tool gating — submit a tool name + args + your policy and get a structured ALLOW / DENY / MODIFY (with rewritten args) decision, structured reasons, and audit metadata. Heuristic policy decision, not a security guarantee ($0.10). Toll: $0.10 USDC on Base or Solana.
Not tested: has real-world effectsour last check, 2026-10-10
0 of 0checks answered this week
n/amedian answer time
$0.1listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://mini-tollbooth.onrender.com/tool-gate
| Category | Code and developer |
|---|---|
| Provider host | mini-tollbooth.onrender.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"args": "{\"amount_usd\": 50, \"to\": \"0x...\"}",
"policy": "{\"allow\":[\"send_.*\"],\"deny\":[\"exec\"],\"arg_constraints\":{\"max_amount_usd\":100},\"unknown\":\"deny\"}",
"tool": "send_payment"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"args": {
"description": "JSON object of the tool args. URL-encoded.",
"type": "string"
},
"policy": {
"description": "Optional JSON policy: {allow, deny, arg_constraints, secret_strip, unknown}. URL-encoded.",
"type": "string"
},
"tool": {
"description": "Tool/function name the agent wants to call.",
"type": "string"
}
},
"required": [
"tool",
"args"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}