OpenSea · Rate Limits

Opensea Rate Limits

OpenSea REST and Stream API rate limits. Three separate buckets apply to read, write, and fulfillment operations. Instant free-tier keys are limited to 2 creations per hour per IP and expire after 30 days.

Opensea Rate Limits is the machine-readable rate-limit profile for OpenSea on the APIs.io network, in the API Commons Rate Limits shape.

It captures 4 rate-limit definitions, measuring requests_per_minute and keys_per_hour.

An exhausted limit returns HTTP 429.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

The profile also includes 4 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Rate Limiting, API Management, and NFT.

4 Limits Exhausted: HTTP 429
Method: generated, dated 2026-06-13.
Written by API Evangelist on 2026-06-13 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
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Rate LimitingAPI ManagementNFT

Limits

Read (Free / Instant Tier) api_key
requests_per_minute · minute
60
Write (Free / Instant Tier) api_key
requests_per_minute · minute
5
Fulfillment (Free / Instant Tier) api_key
requests_per_minute · minute
5
Instant Key Creation ip
keys_per_hour · hour
2

Policies

Three separate rate limit buckets
Read, write, and fulfillment requests are tracked independently with their own per-minute limits.
Instant keys expire after 30 days
Keys generated via POST /api/v2/auth/keys are valid for 30 days. Permanent keys are available via opensea.io/settings/developer.
Backend-only usage recommended
API keys should never be exposed in client-side/frontend code. Use a backend wrapper to securely store and proxy requests.
Cross-chain support
The same API key works across all supported chains including ethereum, polygon, base, arbitrum, optimism, solana, and 20+ others.

Sources

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

MCP server

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Tools for rate limits

4 MCP tools reach this
  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/opensea-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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