MCP Tool · x402 · early usage

Buy a $0.10 trial key: twenty pump.fun rug checks, then a plain X-API-Key header

by api.loopholetape.com · discovered, not yet claimed by its owner · updated 2026-10-08

30d calls2

30d payers2

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Buy a $0.10 trial key: twenty pump.fun rug checks, then a plain X-API-Key header. Use to try the prepaid-key path with a small budget before the $2.00 key; each new payment here buys a new $0.10 key. The same prepaid key as /v1/keys/new with $0.10 of credit (about twenty $0.005 rug checks or a hundred $0.001 launch polls): one x402 payment, then X-API-Key on any paid HTTP route.

Tags: billing · prepaid · api-key · trial · bazaar

Call contract

Method: GET
Input: HTTP request
Output: json
Last paid call: 2026-10-08

No input exampleProvider did not publish one in Bazaar metadata.

Output example

{
  "coverage": "full",
  "data": {
    "credit_usd": 0.1,
    "key": "lt_exampleexampleexampleexample",
    "status": "active_on_settlement",
    "use": {
      "balance": "/v1/keys/balance",
      "header": "X-API-Key: lt_...",
      "routes": "every paid HTTP route and every paid MCP tool (the same header on POST /mcp)"
    }
  },
  "ok": true
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/27443.json for the price and payment options.
Pay. Call GET https://api.loopholetape.com/v1/base/keys/trial. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, eip155:4663, eip155:196, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.1 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Solana, eip155:4663, eip155:196
Demand: 2 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.1	0x25d408eF54e60F3006bD13d5A040d525E2F359c2	60s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.1	9HkwyUhDMyjbpSpnyu5xuZ9vRaFQeajnJsavhie7XcsT	60s
exact	eip155:4663 eip155:4663	0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168	100000	0x25d408eF54e60F3006bD13d5A040d525E2F359c2	60s
exact	eip155:196 eip155:196	0x779Ded0c9e1022225f8E0630b35a9b54bE713736	100000	0x25d408eF54e60F3006bD13d5A040d525E2F359c2	60s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x25d408eF54e60F3006bD13d5A040d525E2F359c2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "100000",
    "amountUsd": 0.1,
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "9HkwyUhDMyjbpSpnyu5xuZ9vRaFQeajnJsavhie7XcsT",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "100000",
    "amountUsd": 0.1,
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:4663",
    "payTo": "0x25d408eF54e60F3006bD13d5A040d525E2F359c2",
    "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
    "amount": "100000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:196",
    "payTo": "0x25d408eF54e60F3006bD13d5A040d525E2F359c2",
    "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
    "amount": "100000",
    "maxTimeoutSeconds": 60
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "properties": {
        "coverage": {},
        "data": {},
        "ok": {}
      },
      "required": [
        "ok",
        "coverage",
        "data"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "coverage": null,
    "data": null,
    "ok": null
  },
  "type": "string"
}

Examples

curl

curl "https://api.loopholetape.com/v1/base/keys/trial"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.loopholetape.com/v1/base/keys/trial");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.loopholetape.com/v1/base/keys/trial")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.loopholetape.com
Endpoint: https://api.loopholetape.com/v1/base/keys/trial
Machine-readable: /resources/27443.json