Reference & Lookup Data · Integration
CoinGecko
Add CoinGecko to your product for your customers, and give your AI agents governed access to it.
CoinGecko splits its demo and paid tiers across two hosts, api.coingecko.com and pro-api.coingecko.com, and the key header differs between them, so a working demo key returns 401 the moment you point it at the pro host. Almost every endpoint is keyed by CoinGecko's own coin id rather than the ticker symbol, which is why /coins/list is usually the first call an implementation makes and caches. Historical granularity on /coins/{id}/market_chart/range is decided by the width of the range you request rather than by a parameter, so a wide window quietly returns daily points instead of hourly ones. Rate limits are counted per minute against the key and against a monthly call allowance, so backfills need pacing rather than parallelism. fastn holds each customer's key, routes to the host their plan actually uses, and keeps the connector current as endpoints move.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let a customer connect their own CoinGecko key so quotes are drawn on their plan and their rate limit, not yours.
Show live valuations against portfolio records using /simple/price in the customer's preferred fiat currency.
Backfill historical market charts for a watchlist without exhausting the account's monthly call allowance.
Resolve user-typed ticker symbols to CoinGecko coin ids before storing them against an account.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
Ask an agent to summarise a watchlist's 24-hour moves, with every CoinGecko call logged and audited per tenant.
Have an agent confirm a coin id exists before a customer saves a price alert rule against it.
Let an agent pull exchange volume for a named market and attach it to an internal review note.
Example prompt
What has ether done against GBP over the past week?
Set up CoinGecko in 4 steps
- 01Enable the CoinGecko connector from your fastn dashboard.
- 02Have each customer authorise their own CoinGecko account, so calls run under their credentials rather than a shared key.
- 03Decide which lookups, results and reports your product needs, map those fields, then enable the actions and triggers you want.
- 04Call it from your product and expose it to your agents through the same governed connection.
Why teams use the CoinGecko integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a CoinGecko integration without building it. Your customers connect their own CoinGecko account inside your product and work their lookups, results and reports there, with no per-customer code on your side.
- Handle the part that actually costs time: these are metered read sources, so an uncached lookup on every page view burns the customer's allowance. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a CoinGecko update is not your on-call problem.
- One integration serves your product and your agents. The same governed CoinGecko connection powers in-product features and gives AI agents scoped, audited access, so you answer questions from an authoritative outside source without holding that data yourself without wiring it twice.
Used by these teams
Compare with
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SnowflakeCoinGecko integration FAQ
How do I add a CoinGecko integration to my product?
Enable the CoinGecko connector in your fastn dashboard, then let each customer authenticate their own CoinGecko account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no CoinGecko client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own CoinGecko account?
Yes. Every connection is scoped to the individual customer, so each authorises their own CoinGecko account and only ever sees their own lookups, results and reports. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.
Can AI agents use this CoinGecko integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. Ask an agent to summarise a watchlist's 24-hour moves, with every CoinGecko call logged and audited per tenant.
Who maintains the CoinGecko integration?
fastn does. When CoinGecko changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.
Whose credentials does a CoinGecko lookup run under?
Each customer's own. Quota and cost land on the customer that caused them rather than on a shared key you have to meter and re-bill, and one heavy customer cannot exhaust another's allowance.
How should CoinGecko results be cached?
Per tenant, with a window that matches how fast the underlying data actually moves. CoinGecko is a read source rather than a system of record, so the same query returns the same answer until the source changes, and caching is the difference between a sustainable integration and one that exhausts a customer's allowance on a busy page.
What can I build with the CoinGecko integration?
A common starting point: let a customer connect their own CoinGecko key so quotes are drawn on their plan and their rate limit, not yours. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.
How much does the CoinGecko integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding CoinGecko does not change your per-connector cost. You can start free with 3 connected accounts.
Add CoinGecko to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.