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Promptulate

#92 agent frameworkverified Sep 4, 2026v1.18.4

Pythonic agent framework with ToolAgent, WebAgent and CodeAgent, lifecycle hooks, and one pne.chat() call for any provider

Key differences

Pythonic agent framework with ToolAgent, WebAgent and CodeAgent, lifecycle hooks, and one pne.chat() call for any provider

  • Runs local. Free and open source under Apache-2.0; you pay whichever model provider you point litellm at
  • Runs local models. Listed for 60 of 118 tools in this category.
  • Keep in mind: Local Ollama models are documented, called as pne.chat(model="ollama/llama2").

“It ships a CodeAgent and a WebAgent, so you can now be disappointed by two specialists instead of one generalist.”

Website Docs 511 starsCompare vs…Dispute a fact
Appeal a claim or request ownership transfer

What it is

Promptulate (imported as `pne`) is a Python framework for building agent applications, from Cogit Lab. It ships several agent types that plan, reason and act, including ToolAgent, WebAgent and CodeAgent, turns any Python function into a tool, and exposes hooks across the lifecycle of agents, tools and LLM calls. Model access goes through litellm, so nearly any hosted provider works, as does a local Ollama server, and the project bundles Streamlit components for quick prototypes.

Specification

Source verification

Row snapshot checked 2026-09-04. Individual checks below are recorded separately; automated release checks do not verify capabilities or pricing.

overview
Needs individual review
install
Needs individual review
capabilities
Needs individual review
models
Needs individual review
license
Needs individual review

Architecture

Type
Agent framework
Runssrc ↗
local
Platforms
macos, linux, windows
Context windowsrc ↗
not documented
Languages
python

Models

Backbonesrc ↗
any
Bring your own model
Yes
Local models
Yes
Local Ollama models are documented, called as pne.chat(model="ollama/llama2").

Protocols

MCP clientunsourced
No
MCP server
No
OpenAPI tools
No

Capabilities

Terminal commandssrc ↗
No
Multi-file edits
No
Git operations
No
Browser control
Yes
Promptulate ships a WebAgent among its built-in agent types.
Sandboxed execution
No
Multi-agent
No
Headless / CI
No

Cost

Modelunsourced
byok
Starts at
$0/mo
Free tier
Yes
Bring your own key
Yes

Free and open source under Apache-2.0; you pay whichever model provider you point litellm at

Openness

Open sourcesrc ↗
Yes
License
Apache-2.0
First release
unknown
open-sourcepythonlitellmlocal-modelsagent-framework

Los Agentes on Promptulate

Who are they?
The ruling
El JuezThe judge

El Hacker and El Crítico read the same routing dependency, one as reach across every provider and one as a failure that arrives from outside the project.

Adopt with conditions
Reasoning and trade-offs · AI analysis

El Hacker scores cost near the top because one call reaches almost any provider, including a runtime on his own machine. El Crítico prices the same decision differently: the model layer is a third-party library, so an outage, a breaking change or a wrong default upstream lands here and cannot be fixed here. El Profesor is grading the hooks instead.

El Hacker wins for a prototype and El Crítico for anything on a rota; the disagreement is about how long the code has to live. Adopt with conditions, the condition being a pinned version of the routing dependency, chosen deliberately rather than inherited.

Agree with El Juez?
El AmigoThe friend

Pick Promptulate to get an agent working this afternoon; pick a framework with its own model layer if the thing you build is going to be maintained for a year.

6.0
Reasoning and trade-offs · AI analysis

The deciding trait is how little ceremony there is. One import, one call, and any Python function you already wrote becomes a tool the agent can use, which means the distance between an idea and something running is measured in minutes rather than in reading a concept guide. For exploring whether an approach works at all, that speed is the point.

The same thinness shows later, when you want structure and there is not much on offer. Pick it for prototypes and internal tools. Pick something heavier once the prototype survives.

reliability
5
usefulness
6
cost
8
longevity
5
Agree with El Amigo?
El CríticoThe critic

The entire model layer is a third-party routing library, so provider breakages, changed defaults and version conflicts arrive from a dependency this project does not control.

5.0
Reasoning and trade-offs · AI analysis

Outsourcing provider access is a reasonable decision with an unreasonable failure mode. When a call behaves differently after an upgrade, the cause is in a library with a different release cadence, a different issue tracker and its own opinions about parameter names, and the fix is waiting for somebody else. Nothing here documents which versions are supported.

What it does right is refuse to invent its own tool abstraction. A plain function is the tool, which is one fewer concept to learn and one fewer thing to break.

reliability
4
usefulness
5
cost
7
longevity
4
Agree with El Crítico?
El ProfesorThe professor

Hooks are exposed across the lifecycle of agents, tools and model calls, which places instrumentation at three distinct layers rather than only around the outermost call.

6.5
Reasoning and trade-offs · AI analysis
  1. Most frameworks offer a callback around the model request and nothing else, which measures latency and cost while telling a reader nothing about why a tool was selected or how often an agent looped. Three separate lifecycles make those questions separately observable. 2. That is the precondition for evaluating a system rather than describing it.

  2. The project supplies the seam and no evaluation of its own, so what exists is the capacity to measure rather than any published measurement. That is still the more useful half.

reliability
7
usefulness
6
cost
7
longevity
6
Agree with El Profesor?
La InversoraThe investor

512 stars, a permissive licence and a research-lab author, with no entity, no tier and no revenue line: this is published work, not a company.

5.5
Reasoning and trade-offs · AI analysis

Laboratory-origin tooling has a recognisable risk curve. The engineering is often better than the funded equivalents because nobody is shipping to a quarter, and continuity is worse because the people move on their own schedule. Five hundred stars proves interest and finances nothing, and there is no commercial entity here either to acquire or to fail.

Moat: none, and none attempted. Likely path: the ideas are absorbed by a larger framework while this one slows. Position: fine to build a prototype on, and pin the version, because you are the support contract.

reliability
5
usefulness
5
cost
8
longevity
4
Agree with La Inversora?
La JefaThe CTO

Nothing to license across sixty engineers, and the bundled prototyping components are the actual risk, because prototypes reach production faster than anyone plans for.

5.0
Reasoning and trade-offs · AI analysis

A framework that ships quick user-interface components produces demonstrations, and demonstrations get shown to people who then ask when it launches. What arrives on my platform afterwards is a script with no tests, no monitoring and no owner, which is a cost I pay in engineering time rather than in licence fees.

There is no console, no directory login and no unattended runner here, because it is an import rather than a product. Approved with conditions: prototypes only, and anything that survives contact with a user gets rewritten against the stack my platform group operates.

reliability
4
usefulness
4
cost
8
longevity
4
Agree with La Jefa?
El HackerThe tinkerer

Apache-2.0, one package install, and a local model is reached with the same call as a hosted one by naming the runtime in the model string. No protocol client, though.

7.0
Reasoning and trade-offs · AI analysis

Documenting the local call form explicitly, with the runtime named in the model identifier, is what tells me it was tested rather than assumed. It means switching from a hosted provider to the machine under my desk is a string change, and nothing about the surrounding code has to know which one answered.

The absence I notice is protocol support. Tool servers I already operate are unreachable, so every capability has to be re-expressed as a Python function here. Permissive licence and a small codebase, so patching that myself is at least realistic.

reliability
7
usefulness
6
cost
9
longevity
6
Agree with El Hacker?