# Nimbus Onchain Data API – Base Stablecoin Flows

> Nimbus Onchain Data API – Base Stablecoin Flows is a paid API for AI agents from crypto-data-api-zo95.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Returns minting, burning, and net inflow metrics for stablecoins on the Base blockchain over a rolling time window

## Facts

- Endpoint: GET https://crypto-data-api-zo95.onrender.com/v1/base/stablecoin-flows?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nimbus-onchain-data-api-base-stablecoin-flows-6274252b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Yr0qdtMLjxv4MyUY4-y36

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nimbus-onchain-data-api-base-stablecoin-flows-6274252b
```

Example prompt: What's the current stablecoin flow on Base — how much has been minted vs burned in the last hour, and which addresses are seeing the biggest net inflows?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call snapshot of stablecoin minting, burning, and top net inflow activity specifically on the Base blockchain, without committing to a subscription. It is well-suited for agents that only occasionally need onchain stablecoin flow data and want to pay micro-amounts per query rather than maintaining API keys or monthly plans. Prefer alternatives (e.g. Dune Analytics, Nansen, Flipside) if you need historical depth, cross-chain coverage, custom SQL, or guaranteed SLAs.

## Known failure modes

- Payment not received or insufficient USDC — request rejected before data is returned
- Data pipeline lag exceeds threshold — freshness check fails and data may be stale
- Service unavailability (hosted on Render free tier) — cold starts or downtime possible
- No refunds if the service returns an error after payment is accepted
- Schema or methodology changes without notice — output fields may shift

## How this service works

x402 pay-per-call. Payments are per request in USDC and are final. No refunds on-chain. Service is provided as-is and may change or stop without notice. Informational data only, not financial, investment, legal, or tax advice. Metrics such as net transfer volume estimates and wallet clusters are algorithmic estimates from public blockchain data and may be wrong or delayed. Provided as-is with no warranty. Methodology: https://crypto-data-api-zo95.onrender.com/methodology.

## Output

Returns a JSON object with the time window queried, total USD value minted and burned in that window, a ranked list of top addresses by net stablecoin inflow (with address and net USD amount), data freshness/pipeline health checks, a disclaimer, and a UTC timestamp of when the data was generated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "window": "1h",
  "burned_usd": 500000,
  "checks_run": [
   {
    "id": "pipeline_fresh",
    "ran": true,
    "passed": true,
    "description": "Ingested data lag under 300s"
   }
  ],
  "disclaimer": "Informational data only, ...",
  "minted_usd": 1000000,
  "top_net_inflow": [
   {
    "address": "0xabc...",
    "net_usd": 250000
   }
  ],
  "generated_at_utc": "2026-09-29T19:40:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nimbus-onchain-data-api-base-stablecoin-flows-6274252b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from crypto-data-api-zo95.onrender.com](https://www.zero.xyz/host/crypto-data-api-zo95.onrender.com/llms.txt)