# Nimbus Onchain Data API – Token Market Check

> Nimbus Onchain Data API – Token Market Check is a paid API for AI agents from crypto-data-api-zo95.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Runs a suite of on-chain health checks on an ERC-20 token, including circular volume analysis, slippage estimates, and flagged findings

## Facts

- Endpoint: GET https://crypto-data-api-zo95.onrender.com/v1/token/market-check?utm_source=zero.xyz
- Price: $0.02/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-token-market-check-ff293955
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__48lxDffzWopOe9KLV-vJ

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-token-market-check-ff293955
```

Example prompt: Can you run an on-chain market check on the token at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 and tell me if there are any red flags, like circular trading or high slippage for a $10,000 buy?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call on-chain health check for a specific ERC-20 token, including circular/wash trading estimates and slippage impact, without committing to a subscription. Best for ad-hoc due diligence or agent workflows that need token risk signals on demand.

## Known failure modes

- Missing or malformed token address (not matching ^0x[0-9a-fA-F]{40}$) returns a validation error
- Token address not found on-chain returns empty or null findings
- Payment not completed via x402 results in 402 Payment Required response
- Service may be unavailable or return stale data without notice as it runs on Render free tier
- Algorithmic estimates may be wrong or delayed — not guaranteed accurate

## 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 a summary string, an array of findings (each flagged or not), a slippage estimate for a $10,000 buy, transfer volume metrics (gross, non-circular, circular estimates), and a disclaimer. Fields include checks_run (list of check IDs and whether they were flagged), transfer_volume object with non_circular_share_estimate, and generated_at_utc timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "token"
     ],
     "properties": {
      "token": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{40}$"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "checks_run": {
       "type": "array"
      },
      "disclaimer": {
       "type": "string"
      },
      "gross_volume": {
       "type": "number",
       "description": "Net token movement per transaction, counted once: net on-chain transfer volume, which includes lending, bridge and exchange flows and is not DEX trading volume."
      },
      "transfer_volume": {
       "type": "object",
       "description": "Summary block (market-check, stablecoin-volume, snapshots): gross_volume, non_circular_volume_estimate, non_circular_share_estimate and USD values. net on-chain transfer volume, which includes lending, bridge and exchange flows and is not DEX trading volume."
      },
      "generated_at_utc": {
       "type": "string"
      },
      "volume_definition": {
       "type": "string",
       "description": "Plain-text definition of the volume figures in this response."
      },
      "raw_transfer_volume": {
       "type": "number",
       "description": "Diagnostic only: sum of every Transfer leg (router hops, flash loans and LP moves included). Not a volume measure."
      },
      "circular_share_estimate": {
       "type": "number",
       "description": "circular_volume_estimate / gross_volume (0-1). Heuristic estimate."
      },
      "circular_volume_estimate": {
       "type": "number",
       "description": "Part of gross_volume matched as circular across transactions (round-trips, high-frequency bot churn, 3-hop cycles). Heuristic estimate."
      },
      "intra_tx_round_trip_volume": {
       "type": "number",
       "description": "Amount that cancels out within single transactions (pass-through hops, repaid flash loans). Excl
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "token": "0x...",
  "summary": "No issues found in these checks as of ...",
  "findings": [],
  "slippage": {
   "buy_10000_usd": {
    "price_impact_pct_estimate": 0.8
   }
  },
  "checks_run": [
   {
    "id": "non_circular_share",
    "ran": true,
    "flagged": false
   }
  ],
  "disclaimer": "...",
  "transfer_volume": {
   "non_circular_share_estimate": 0.4
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nimbus-onchain-data-api-token-market-check-ff293955/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)