# Paxie Robinhood Chain Burst History > Paxie Robinhood Chain Burst History is a paid API for AI agents from api.paxie.fun, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-14). Returns historical scored buyer-burst records from Robinhood Chain Uniswap v3/v4 pools, including rug-check results and 30-minute outcome data, filterable by rug status and tier. ## Facts - Endpoint: GET https://api.paxie.fun/v1/rh/bursts/history?utm_source=zero.xyz - Price: $0.02/call - Payment: x402 - Status: unknown - Last checked: 2026-10-14 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/paxie-robinhood-chain-burst-history-0ed04355 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qVQ2I-1Jczg-Rf3-6TFZa 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 paxie-robinhood-chain-burst-history-0ed04355 ``` Example prompt: Pull the last 12 hours of scored buyer burst history from Robinhood Chain, filtered to only safe liquidity pools — show me the main and refire tiers with their rug check results and 30-minute outcome returns. ## When to prefer this Use this endpoint when you need historical, already-scored Robinhood Chain burst records with rug-check metadata and 30-minute outcome returns — ideal for backtesting signal quality, auditing past rug pulls, or reviewing tier-filtered burst performance. Prefer this over the live burst endpoint when you need outcome data (signal+30m) rather than real-time signals, and over the combined matrix endpoint when you only care about Robinhood Chain burst history specifically. ## Known failure modes - Invalid hours parameter (outside 1-24 range) returns a validation error - Invalid enum value for lp or tier filter returns a 400 error - Payment not included or insufficient USDC results in x402 payment-required response - Scoring window not yet closed means outcome fields are null for recent bursts - LP ownership unresolvable means rows match neither safe nor held filter - Data may be up to 30 seconds stale due to 20-second refresh cadence ## How this service works Launch data for Robinhood Chain and Solana, updated every 20 s (≤30 s lag). Robinhood Chain: every ETH-quoted Uniswap v4 and v3 pool created in the last 24 h. Solana: pump.fun tokens 5 min to 4 h old that show curve progress. Buyer bursts, a rug check on who holds each pool's liquidity (per burst, and per token before you buy), new pools, per-minute flow, repeat-buyer crews and copy-leader replays. Robinhood signals are scored 30 minutes later, Solana ones at graduation or 20 minutes, rugs counted. Data, not trading advice. Paid per call with x402 (USDC on Base or Solana); no API keys. Every schema property carries x-available: signal = Known when the burst fires. Safe to use as a feature. signal+seconds = Filled 5-60 s after the signal, computed from chain state as of the signal block. Safe as a feature once present; null until then. signal+30m = Outcome. Exists only after the scoring window closes (Robinhood 30 min; Solana graduation or 20 min). Never use as a feature: a backtest that does uses the future. now = Current state as of the response's generatedAt (or the row's checkedAt). Not tied to a signal. Errors (4xx/5xx) are never charged. /v1 is canonical; the original paid paths are also served unversioned. ## Output A JSON object containing an array of historical burst records for Robinhood Chain, each with: burst timestamp, pool and token addresses, DEX version (v3/v4), buyer and sell counts, inflow ETH, top-3 buyer share, LP rug-check classification (burned/held/safe), burst tier, shape, repeat buyers, size coefficient of variation, and outcome block (30-minute return, rule-scored exit, peak return, rug detection with LP removal percentage and timing). Also includes chain-level metadata: ETH/USD price, schema version, data age in seconds, and burst tier rule definitions. ## 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", "properties": { "lp": { "enum": [ "all", "safe", "held" ], "type": "string", "default": "all", "description": "Rug-check filter. safe = burned, launchpad/locker or other wallets held >= 50% of the liquidity at the signal. held = the creator / LP adder held >= 50% (can pull it). Rows whose LP owner could not be read match neither. Default all." }, "tier": { "enum": [ "main", "lite", "refire", "old", "all" ], "type": "string", "default": "all", "description": "Tier filter (default all)" }, "hours": { "type": "number", "default": 24, "maximum": 24, "minimum": 1, "description": "Look-back window in hours, 1-24 (default 24)" } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object", "required": [ "chain", "schemaVersion", "generatedAt", "ageSec", "bursts" ], "properties": { "chain": { "enum": [ "robinhood", "solana" ], "type": "string" }, "rules": { "type": "object" }, "ageSec": { "type": "integer" }, "bursts": { "type": "array", "items": { "type": "object", "properties": { "at": { "type": [ "integer", "null" ] }, "id": { "type": [ "string", "null" ] }, "lp": { "type": [ "object", "null" ] }, "dex": { "type": [ "string", "null" ] }, "buys": { "type": [ "integer", "null" ] }, "pool": { "type": [ … (truncated) ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "chain": "robinhood", "rules": { "old": "first main-threshold burst on a 6-24 h old pool", "lite": "net ETH in >= 0.5 within 60s, >= 8 buy swaps, pool 5 min - 6 h old", "main": "net ETH in >= 1 within 60s, >= 12 buy swaps, still buying over the last 15s, pool 5 min - 6 h old", "refire": "main thresholds again on the same pool >= 30 min after its last burst", "outcome": "path-scored for 30 min after the signal; ruleRet = the fade 0.5 ETH / stall 60s exit, 2% round-trip costs included; a liquidity pull of >= 80% inside the window scores every exit not yet taken as -100% (rug)" }, "ageSec": 12, "bursts": [ { "at": 1791567752000, "lp": { "class": "held", "lpAgeMin": 6.2, "estimated": false, "otherShare": 0, "burnedShare": 0, "insiderShare": 1, "unknownShare": 0, "contractShare": 0 }, "dex": "v4", "buys": 17, "pool": "0x9b1f4e7a2c5d80e36f1a9c4b7d2e05f8a3c6b19e7d40f2a5c8e1b36d9f704a2c", "tier": "main", "sells": 3, "shape": "spread", "token": "0x7c3e9a41d0b25f8e6a1c4d93b07e2f5a8c61d4b2", "buyers": 14, "sizeCV": 0.9, "outcome": { "rug": { "atSec": 212, "lpRemoved": 0.97 }, "byRule": { "hold": { "ret": -1.02, "sec": null, "why": "held+rug" }, "rule_b62405": { "ret": -0.084, "sec": 75, "why": "burst-stall" } }, "ret30m": -1, "scored": true, "peakRet": 0.412, "ruleRet": -0.084 }, "inflowEth": 1.421, "top3Share": 0.38, "windowSec": 60, "poolAgeMin": 6.4, "sameSizeMax": 2, "repeatBuyers": 3 } ], "ethUsd": 3912.4, "generatedAt": 1791570200000, "schemaVersion": 1 } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/paxie-robinhood-chain-burst-history-0ed04355/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from api.paxie.fun](https://www.zero.xyz/host/api.paxie.fun/llms.txt)