> For the complete documentation index, see [llms.txt](https://adiom.gitbook.io/data-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://adiom.gitbook.io/data-api/readme.md).
# Data API
Data API by [Adiom](https://adiom.io) makes it really easy to build a declarative gRPC enabled access layer for your databases.
Currently supports MongoDB and Postgres as a database and can perform authorization checks based on a JWT Authorization: Bearer token.
It is built on top of [Connect RPC](https://connectrpc.com/) so it supports JSON over HTTP in addition to gRPC.
* Enable easy and secure access to your databases through protobufs/gRPC
* Per-endpoint granular authorization for RLS (row-level security) or FLS (field-level security)
* Per-endpoint request validation
* Standardize API interfaces and communication in your stack on protobufs/gRPC
* Allow request observability with OpenTelemetry support
You can for example use this to set up a gRPC server to access your MongoDB databases. Then you can use [grpcmcp](https://github.com/adiom-data/grpcmcp) to make it available to Claude or another MCP enabled LLM client.
For testing and experimentation, we have a free hosted implementation that works with MongoDB and can be used as MongoDB Atlas Data API:
The core of the project will be eventually released as Open Source under Apache 2.0 license and the code will be available in [GitHub](https://github.com/adiom-data/dapi).
### Jump right in
