---
title: "Check rug risk on up to 25 pump.fun memecoins, one payment"
method: GET
path: "/v1/check/batch"
tags: ["paid"]
---

# Check rug risk on up to 25 pump.fun memecoins, one payment

`GET /v1/check/batch`

## Request

- Base URL: `https://api.loopholetape.com`
- URL: `https://api.loopholetape.com/v1/check/batch`
- Auth: none required

Use when a screener checks a list of up to 25 pump.fun memecoins in one call and some may be outside the live window; at 21 to 25 mints it costs less per mint than the five-mint watchlist check (GET /v1/check/watchlist, $0.01), below that the watchlist costs less. One payment checks one to 25 caller-selected pump.fun mints. Each covered mint gets the compact check's item (observed creator exits, bundle selling, drains, migration state, calibrated P(rug within 5 min) for young mints and P(true graduation) (/v1/calibration), holder concentration, buyer flow and timestamped evidence) plus its verdict word by the /v1/verdict rule; a mint outside our live window is listed with coverage unavailable instead of refusing the batch. Price is $0.04 total, charged when at least one mint is covered and the feed lag is <= 5 s; a batch with none covered, more than 25 mints, a malformed or a repeated mint is refused unpaid. No cursor (the watchlist check watches up to five). No flags observed is not a safety guarantee. Each item also carries market (USD price, market cap = price x total supply as pump.fun and DexScreener show it, the curve's SOL liquidity in SOL and USD) and authorities (mint, freeze, metadata; the pump.fun program rule).

## Query parameters

- `mints` string, nullable

## Response `200`

Paid response (header PAYMENT-RESPONSE carries the settlement)

- Envelope
  - `ok` boolean, required
  - `schema_version` '2.0', required
  - `generated_at` string, date-time, required
  - `t` number, required: unix seconds at generation
  - `coverage` 'full' | 'thin', required: the mint is inside our live window (created while our captur / thin = the mint is not in the live window (older than ~2 h of silen
  - `data` object, required
  - `meta` object, required
    - `source` string
    - `version` string
    - `feed_lag_s` number, nullable: seconds between the newest event in our tape and now (the age of the newest event we ingested; it does not say whether the capture runs behind the chain, see chain_lag_s)
    - `is_stale` boolean: the ingest age (feed_lag_s) exceeds the route's freshness limit (5 s for compact risk checks, 30 s otherwise); a paid or keyed pump.fun request is also refused above 5 s of estimated chain lag when the gate enforces (see chain_lag_s, tape_behind), which this flag does not show
    - `chain_lag_s` number, nullable: estimated seconds the newest slot in our pump.fun tape is behind the Solana RPC's processed tip (slots_behind x the measured slot time, to 0.1 s); null when the tip is unknown; absent on Robinhood Chain answers
    - `slots_behind` integer, nullable: estimated slots between the newest slot in our pump.fun tape and the Solana RPC's processed tip (a tip read every 30 s, carried forward by the wall time since at the slot rate our own reads measure); 0 when the tape is at or ahead of the estimate; null when the tip is unknown
    - `tape_behind` boolean, nullable: true when the estimated chain_lag_s is above 5 s, false within 5 s, null when there is no tip to compare; on pump.fun answers only
    - `last_slot` integer, nullable
    - `price_usd` number, nullable
    - `next` object: related resources worth calling next (paths relative to base_url)
    - `disclaimer` string

## Other responses

- `402`: Payment required (x402 v2): header PAYMENT-REQUIRED = base64 of the body
- `422`: Validation Error

---

[API](https://skmtc.dev/loopholetape/apis/loophole-tape.md) · [All operations](https://skmtc.dev/loopholetape/apis/loophole-tape/llms.txt) · [OpenAPI document](https://skmtc.dev/loopholetape/apis/loophole-tape/revisions/eea099d70151?raw)