One key. Every chain endpoint.
apio is a free, unauthenticated-signup read API over Robinhood Chain token, pool, price, and holder data. Register once, query all six endpoints. No card, no plans, no "upgrade" prompts anywhere.
No credit card · No billing · 100 requests/hour, free forever
- Active
Token Discovery
every 5 min
- Active
Holder Snapshots
hourly
- Standby
Price Snapshots
awaiting provider
- Standby
Pool Tracking (Uniswap v4)
awaiting PoolManager
// Register once. Query everything.
POST /api/v1/keys/register
{
"email": "you@x.com"
} → 6 endpoints unlocked, instantly
6
Endpoints
100/hr
Free Requests
$0
Forever
1
API Key
The Problem
Chain data is scattered across five tools. apio isn't.
To build a screener, wallet tracker, or trading bot on a new chain, you'd normally run your own RPC node, deploy a subgraph, glue together a block explorer API, and hunt down a price feed — then keep maintaining all four every time one of them changes shape. apio replaces the whole stack with one JSON API and a free key.
RPC Node
Raw eth_getLogs polling. No schema, no history, breaks on every re-org.
Block Explorer API
Rate-limited, and the response shape is different on every chain.
Custom Subgraph
Hours to design, deploy, and index — then more hours to keep it running.
Price Feed
No Chainlink on brand-new chains. You're left to source prices yourself.
Cron + Glue Code
The classic "just write a script" trap that nobody wants to own long-term.
You don't need to run any of this. Register with apio and every one of these becomes a single GET request.
How It Works
Three steps. Five minutes. Six endpoints.
Register for a free key
Submit an email address. No card, no verification flow, no quotas beyond the published rate limit — free, forever.
POST /api/v1/keys/register
{
"email": "you@x.com"
}
← 200 { "apiKey": "rhk_..." }Call any endpoint
Six endpoints cover tokens, pools, price history, and safety signals. Every request carries the same header.
GET /api/v1/screener/trending?window=24h x-api-key: rhk_... ← 200 application/json
Get structured data back
No parsing raw logs, no reconciling explorer + RPC + subgraph responses against each other. Just clean JSON.
{
"window": "24h",
"tokens": [
{ "address": "0x...", "symbol": "RHX",
"holderGrowth": 0.42, "priceChange": 0.18 }
]
}Why apio
Four reasons you don't build this yourself.
Infrastructure isn't your product
Running and maintaining a chain indexer is a full-time job on its own. Every hour spent on it is an hour not spent on what you actually set out to build.
New chains have no data layer
Robinhood Chain has no Chainlink feeds and no mature subgraph ecosystem yet. apio reads directly from its own indexer to fill that gap today.
Consistent errors, real rate limits
Every failure returns the same {error:{code,message}} shape and a Retry-After header — never a silent timeout or an undocumented 500.
Actually free
No tiers, no card on file, no "contact sales" for higher limits. The published rate limit is the entire business model.
Under The Hood
One indexer. One key. Every dataset in sync.
A SvelteKit API sits in front of a dedicated background indexer and a PocketBase store. We run our own screener and safety checks on this exact same infrastructure — the same key, the same rate limit, the same endpoints every user gets.
Free forever, zero tiers
No card, no plans, no upgrade prompts anywhere in the product.
Six endpoints, one shape
Tokens, pools, price history, and safety checks — all consistent JSON.
Live background indexer
A dedicated Node process discovers tokens and snapshots holders on cron schedules.
Historical price snapshots
Query price history by address or pool, not just the current spot price.
Basic on-chain safety signals
Verification status, owner address, and holder concentration in one call.
Published, predictable limits
100 requests/hour per key, with a Retry-After header when you hit it.
Plain HTTP, no SDK
Every endpoint is a curl-able REST call. No client library to install or trust.
Backed by PocketBase
A single source of truth for tokens, pools, prices, holders, and key state.
Reference
Six endpoints. One consistent shape.
Every response is JSON. Every error is { "error": { "code", "message" } }. Every call is metered against the same 100 requests/hour published limit.
/api/v1/keys/registerRegister for a free API key. No card, no plans, no quotas beyond the published rate limit.
curl -X POST https://your-deployment/api/v1/keys/register \
-H "content-type: application/json" \
-d '{"email":"you@x.com"}'/api/v1/screener/new-tokensTokens deployed within the given lookback window (1–168 hours).
curl "https://your-deployment/api/v1/screener/new-tokens?hours=24" \ -H "x-api-key: rhk_..."
/api/v1/screener/new-poolsUniswap v4 pools created within the given lookback window.
curl "https://your-deployment/api/v1/screener/new-pools?hours=24" \ -H "x-api-key: rhk_..."
/api/v1/screener/trendingTokens ranked by holder growth blended with price change over a window.
curl "https://your-deployment/api/v1/screener/trending?window=24h" \ -H "x-api-key: rhk_..."
/api/v1/safety-check/:addressBasic risk signals: verification status, owner, holder concentration.
curl "https://your-deployment/api/v1/safety-check/0xADDRESS" \ -H "x-api-key: rhk_..."
/api/v1/history/price/:addressHistorical USD price snapshots for a token address.
curl "https://your-deployment/api/v1/history/price/0xADDRESS?from=2026-01-01T00:00:00.000Z&to=2026-02-01T00:00:00.000Z" \ -H "x-api-key: rhk_..."
/api/v1/history/pool/:poolAddressHistorical price snapshots for both tokens in a pool.
curl "https://your-deployment/api/v1/history/pool/0xPOOLID?from=2026-01-01T00:00:00.000Z&to=2026-02-01T00:00:00.000Z" \ -H "x-api-key: rhk_..."
Integration
Plain HTTP. No SDK to install or trust.
Every endpoint is a normal REST call behind a single header. Missing or invalid keys get
a clean 401, and hitting
the rate limit returns a 429 with Retry-After.
curl "https://your-deployment/api/v1/safety-check/0xADDRESS" \
-H "x-api-key: rhk_..."
# <- 200 { "isVerified": true, "owner": "0x...", "topHolderPct": 0.12 }For Builders
Stop maintaining a data pipeline. Start shipping.
Screeners, safety bots, dashboards, and trading tools all need the same raw ingredients: fresh tokens, fresh pools, price history, and holder concentration. apio hands you all four behind one key.
Zero cost, forever
No tiers to compare, no card required, no surprise invoice.
Five minutes to first response
Register, grab your key, call an endpoint. That's the whole setup.
One consistent shape
Every one of the six endpoints returns predictable, typed JSON.
Real rate-limit visibility
100 requests/hour per key, with a Retry-After header
telling you exactly when to come back.
Live and historical, together
Current screener rankings and historical price snapshots from one API.
No vendor lock-in
Plain REST over HTTP. Curl it today, swap frameworks tomorrow, nothing changes.
Why Now
Robinhood Chain is brand new. Clean data early matters.
New Arbitrum Orbit chains launch without a data layer — no mature subgraphs, no Chainlink feeds, sparse explorer coverage. apio's indexer is already watching this chain, so you don't have to bootstrap your own from block zero.
What you provide
- 1.Your email address
- 2.That's it.
What apio handles
- ✓Token & pool discovery
- ✓Holder snapshotting
- ✓Price history
- ✓Safety signal checks
- ✓Rate limiting & abuse prevention
- ✓Consistent error handling
Get Started
Register your email. Start querying.
Get a free API key
One email, one key, forever free. No card, no plans.
curl -X POST https://your-deployment/api/v1/keys/register \
-H "content-type: application/json" \
-d '{"email":"you@x.com"}'Browse the endpoints
Six endpoints for tokens, pools, prices, holders, and safety signals.
View Endpoints →Rate limit: 100 requests/hour per key. Errors always look like { "error": { "code", "message" } }.