Rate Limits, Concurrency & Backoff

This page explains the limits that govern how fast you can query and stream, how to tell the different throttles apart, and how to build a client that backs off correctly.

Limits vary by plan

The pricing page is the source of truth for current per-plan limits.

Request rate limit

The GraphQL API enforces a per-account requests-per-minute limit by plan:

Plan	Rate limit
Personal	30 / min
Pro	90 / min
Scale	240 / min
Enterprise	Custom

Exceeding it returns a 429. Heavy analytical queries also compete for shared compute (see below), so throughput in practice depends on query cost, not just request count.

Three different throttles — and how to tell them apart

A 4xx/5xx under load can come from three distinct sources. Diagnosing which one you hit determines the fix:

1. Account rate limit — you're sending requests faster than your plan's per-minute allowance. Fix: slow down / add client-side rate limiting.
2. Shared compute pressure — a message like temporarily blocked due to a high number of long-running queries means the shared query engine is busy, not that you exceeded an account limit. Fix: retry with backoff; make queries cheaper (narrower time windows, indexed filters).
3. Plan entitlement block — the request targets a chain/cube/interface not in your plan. Fix: this is billing, not throttling — see How Billing Works.

Recommended client behavior

• Run heavy queries sequentially, not in large parallel bursts.
• On 429 or a shared-compute block, use exponential backoff (start around 5s, double, cap at ~1 min).
• Keep queries cheap: narrow Block.Time/date ranges, and filter on indexed fields so the engine scans less.
• Prefer one batched query (many addresses/tokens in a single where) over many small ones.

WebSocket concurrency

• Each plan allows a maximum number of concurrent subscriptions (Personal: none; Pro: 100; Scale: 1,000; Enterprise: unlimited).
• Exceeding the cap fails silently: the socket connects but delivers no data, rather than returning a clear error. If a subscription "connects but nothing arrives," check your running-subscription count first at Account → Subscriptions.
• Revoking a token does not kill open sockets. Terminate running subscriptions explicitly from the account panel. See WebSocket subscriptions.

gRPC (Solana CoreCast)

• A gRPC subscription requires at least one filter — an unfiltered stream is rejected.
• Multiple tokens per stream. You can subscribe to many token/account filters in a single gRPC stream — you don't need one stream per token.

Frequently Asked Questions

How many requests per minute does Bitquery allow?

It depends on your plan: Personal 30/min, Pro 90/min, Scale 240/min, Enterprise custom. Exceeding it returns a 429, and heavy queries also compete for shared compute.

Why am I getting 429 errors?

Either you exceeded your account's per-minute rate, or the shared query engine is under load ('temporarily blocked due to a high number of long-running queries'). The first needs client-side rate limiting; the second needs retry with backoff and cheaper queries.

Why is my WebSocket connected but receiving no data?

You've likely exceeded your plan's concurrent-subscription cap, which fails silently. Check and terminate running subscriptions in the account panel; note that revoking a token does not stop already-open sockets.

Next steps

• How Billing Works: Points, Plans & Limits
• WebSocket subscriptions
• Common errors and what to do
• Indexed fields reference