Compare
Bruno vs FieldFlow
Bruno is an offline-first API client focused on request management, not on automatic field filtering.
BrunoOffline-first, Git-friendly open-source API client
FieldFlowTurn your REST API into an optimized MCP ServerWhich to pick
Pick Bruno if you want…
- Git-native API client
- Integrations with Vault or Azure Key Vault (on Bruno's list, not FieldFlow's)
Pick FieldFlow if you want…
- Selective field fetching for LLM agents
- Integrations with FastAPI, httpx or Pydantic (on FieldFlow's list, not Bruno's)
Side by side
- What it is
- Bruno:Bruno is an open-source, offline-first API client that stores collections as plain-text files in Git.
- FieldFlow:FieldFlow converts any OpenAPI-described REST API into a filtered MCP server with FastAPI routes.
- Best for
- Bruno:Git-native API client
- FieldFlow:Selective field fetching for LLM agents
- Who it’s for
- Bruno:Developers and teams who need a secure, local-first API testing tool.
- FieldFlow:Developers building LLM agents or apps that need field-level API responses.
- Pricing
- Bruno:Freemium
- FieldFlow:Free
- Plans
- Bruno:Open Source $0 · Pro $6user/month per month, billed annually · Ultimate $11user/month per month, billed annually
- FieldFlow:—
- Open source
- Bruno:Yes, 47,301 GitHub stars
- FieldFlow:Yes, 111 GitHub stars
- Works with
- Bruno:Vault, Azure Key Vault
- FieldFlow:FastAPI, httpx, Pydantic, OpenAPI 3.x, Model Context Protocol, Claude Desktop
Bruno features
- Git-native collections. Store API requests as YAML files in your repo, enabling diff, branch, and merge workflows.
- No cloud sync. All data stays on the local machine; no account or login required.
- Multi-protocol support. Send HTTP, REST, GraphQL, gRPC and WebSocket requests.
- Secret manager integration. Connect to Vault, Azure Key Vault and AWS Secrets Manager for credentials.
- Built-in terminal & scripting. Run JavaScript scripts and use an integrated terminal for automation.
- Workspace & collection runner. Organize requests in workspaces and run entire folders of requests at once.
FieldFlow features
- OpenAPI native. Point FieldFlow at an OpenAPI 3.x spec and it auto-discovers endpoints and schemas.
- Typed Pydantic models. Generates request/response models with full validation, aliases and nested refs.
- Selective responses. Each route accepts a fields list so callers receive only the data they request.
- FastAPI gateway. Proxies calls via httpx and serves filtered results through FastAPI routes.
- Spec-first fidelity. Handles recursive schema resolution to stay aligned with the upstream API.
- Optional MCP layer. Exposes the same filtered endpoints to Model Context Protocol clients like Claude Desktop.
Bruno vs FieldFlow FAQ
Is Bruno or FieldFlow free?+
Bruno has a free plan (Open Source) and paid plans. FieldFlow is listed as free on DevHunt.
Is Bruno or FieldFlow open source?+
Yes, both are open source: Bruno (usebruno/bruno on GitHub, MIT license) and FieldFlow (guillaumegay13/fieldflow on GitHub, MIT license).
Do Bruno and FieldFlow integrate with the same tools?+
Their integration lists don't overlap: Bruno lists Vault and Azure Key Vault; FieldFlow lists FastAPI, httpx, Pydantic, OpenAPI 3.x and 2 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.