docs(indexers): add Pinax

build/tools/indexers/overview.mdx

@@ -23,6 +23,10 @@ Getting historical data on a smart contract can be frustrating when you’re bui
   - SubQuery is a fast, flexible, and reliable data indexing solution for blockchain developers. It allows you to index and query blockchain data with ease, providing a powerful tool for building decentralized applications.
   - [Documentation](https://academy.subquery.network/)
     - The SubQuery Academy provides comprehensive documentation and tutorials to help you get started with SubQuery. It covers everything from basic concepts to advanced usage, ensuring you have all the information you need to build with SubQuery.
+- [Pinax](https://pinax.network/)
+  - Pinax streams full Celo blocks over Firehose and runs Substreams modules on its own infrastructure, for teams building custom indexing pipelines rather than subgraphs. It also serves archive JSON-RPC for Celo mainnet and Celo Sepolia.
+  - [Indexing Celo data with Pinax](/build/tools/indexers/pinax)
+    - Endpoints for Firehose, Substreams, and RPC, with the authentication each one uses.
 - [Codex](https://www.codex.io/)
   - Codex is a blockchain data API that provides real-time and historical DeFi data across 80+ networks via GraphQL, including Celo. With access to over 70 million tokens and 700 million wallets, Codex delivers sub-second data for building token explorers, trading bots, portfolio trackers, and DeFi dashboards.
 - [Bitquery](https://bitquery.io/blockchains/celo-blockchain-api)

build/tools/indexers/pinax.mdx

@@ -0,0 +1,57 @@
+---
+title: Pinax
+description: Stream Celo blocks with Firehose and Substreams, or query archive state over JSON-RPC, using Pinax endpoints
+---
+
+This page is for app developers and data teams who need Celo data in bulk: full block streams, custom indexing pipelines, or historical state at any block. [Pinax](https://pinax.network/) runs its own Celo nodes and operates Firehose and Substreams endpoints; the Substreams documentation [lists Pinax among its providers](https://docs.substreams.dev/reference-material/chains-and-endpoints).
+
+## How it works
+
+[Firehose](https://app.pinax.network/docs/firehose) streams full blocks over gRPC, including transactions, receipts and logs, with cursors so a consumer can resume exactly where it stopped after a restart or a reorg. The same stream serves both historical and live blocks, so one integration covers backfill and tail.
+
+Celo blocks are served at Firehose's *base* detail level: call traces, internal transfers and storage changes are not included. Those *extended* fields are produced by an instrumented node, which Pinax does not currently run for Celo. The Graph's [networks registry](https://networks-registry.thegraph.com/TheGraphNetworksRegistry.json) records the same for Celo — `"evmExtendedModel": false` and `"blockFeatures": ["base"]`.
+
+[Substreams](https://app.pinax.network/docs/substreams) runs on top of Firehose. You write modules in Rust, package them as an `.spkg` file, and run them on Pinax servers to turn raw blocks into the shape your application needs. Output can go to PostgreSQL or ClickHouse, stream to a consumer, or feed a Graph Node as a subgraph data source.
+
+[Pinax RPC](https://app.pinax.network/docs/rpc) serves standard Ethereum JSON-RPC 2.0 from archive nodes, so historical state is queryable at any block.
+
+## Endpoints
+
+[pinax.network/chain/celo](https://pinax.network/chain/celo) is the canonical list of Pinax's Celo endpoints. The tables below are examples, and that page is the one to trust if they ever disagree.
+
+### Celo mainnet
+
+| Service | Endpoint | Authentication |
+| --- | --- | --- |
+| Firehose | `celo.firehose.pinax.network:443` | API key, sent as an `X-Api-Key` header |
+| Substreams | `celo.substreams.pinax.network:443` | API key; the Substreams CLI reads it from `SUBSTREAMS_API_KEY` |
+| RPC | `https://celo.rpc.pinax.network` | API key, optional — see below |
+
+### Celo Sepolia
+
+| Service | Endpoint | Authentication |
+| --- | --- | --- |
+| RPC | `https://celosepolia.rpc.pinax.network` | API key, optional — see below |
+
+<Note>
+  Firehose and Substreams are available on Celo mainnet only. Celo Sepolia is served over RPC.
+</Note>
+
+### Calling RPC without an API key
+
+The RPC endpoints also answer unauthenticated requests, so an `eth_chainId` call with no key returns `0xa4ec` on mainnet and `0xaa044c` on Sepolia. Those requests take a rate-limited anonymous path, served only from Pinax's own nodes with no fallback capacity behind them. Send an API key for the full routing and for per-key rate limits — see the [RPC documentation](https://app.pinax.network/docs/rpc).
+
+## Resources
+
+| Resource | Link |
+| --- | --- |
+| Celo endpoints on Pinax | https://pinax.network/chain/celo |
+| Pinax documentation | https://app.pinax.network/docs |
+| Create an API key | https://app.pinax.network |
+| Substreams CLI | https://docs.substreams.dev |
+| Plans and pricing | https://pinax.network/en/pricing |
+
+## Related
+
+- [Indexers overview](/build/tools/indexers/overview) - other indexing options on Celo, and when each one fits.
+- [The Graph](/build/tools/indexers/the-graph) - subgraphs, which can use Substreams as a data source.

docs.json

@@ -345,7 +345,8 @@
                   "build/tools/indexers/envio",
                   "build/tools/indexers/goldrush",
                   "build/tools/indexers/indexing-co",
-                  "build/tools/indexers/codex"
+                  "build/tools/indexers/codex",
+                  "build/tools/indexers/pinax"
                 ]
               },
               {