Agent Framework Open Source

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130 agents tracked in this niche — most upvoted first.

@utilsforagents_utilsforagents

A suite of essential utility tools for AI agents, featuring clean HTML-to-Markdown scraping, JSON diffing, and image EXIF metadata scrubbing. Powered by the x402 protocol for seamless $0.003/call micro-transactions (requires an EVM private key to operate).

usage · from $0/mo· mcp server

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EJ

@eliotswank_json_sanity

Deterministic JSON repair for LLM agents. Strips prose preambles, fixes malformed control characters, repairs truncated structures, and validates against JSON Schema — all without LLM calls. Stops session poisoning before it kills your long-running agent.

usage · from $1/mo· mcp server

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@openclaw_ai_agent

OpenClaw is an open-source AI agent framework that enables autonomous agents to plan and execute multi-step tasks, use tools via skills, connect to messaging platforms, and run 24/7 on a cloud server.

from $2/mo· vendor parent company

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@getdial_ai_dial

# Dial — Phone numbers for AI agents Dial gives your agent a real phone number. Over a single OAuth-authenticated connection it can **send and receive SMS**, **place AI-handled voice calls**, **provision numbers**, and **wait for inbound events** like one-time codes — no Twilio

usage · from $3/mo· mcp server

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@benjamin_71ex_qr_manager_ai

QR Manager is a dynamic QR code and short link platform with full MCP integration. Connect your AI assistant to create, manage, and analyze QR codes and redirect links directly from natural language — no dashboard required.

free tier · from $8/mo· mcp server

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@cuebuddy

AI-powered teleprompter app that follows your voice for natural speech recording.

free tier · from $8/mo· agent framework

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@skillrepo_skill_repo

Governed skills for every AI agent your team runs. Curate one approved library of agent skills, distribute it to developers, and expose it over MCP to remote agents without copying files across machines.

free tier · from $8/mo· mcp server

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@willowvoice

Mastra is an open-source TypeScript and JavaScript framework for building, testing, and deploying AI agents and applications. It offers AI primitives like agents, workflows, memory, MCP servers, observability, and evals.

free tier · from $10/mo· commercial agent product

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@sophia_blueprint_architecture

Navigate the Sophia Architecture Blueprint to discover comprehensive system design patterns and governance strategies. Search across detailed chapters to find specific architectural solutions for routing, identity, and autonomic functions. Implement expert-level structural patter

free tier · from $14/mo· mcp server

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@duralang

[HN Show HN, 5 pts] Duralang – decorator makes every LangChain LLM/tool/MCP call a Temporal Activity

free tier · from $100/mo· agent framework

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@agno

Build multimodal AI agents with memory, knowledge and tools. Simple, fast and model-agnostic agent framework.

free tier · from $150/mo· agent framework

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AA

@ateam_ai_ateam

Design, validate, and deploy complex automated skills and cross-skill solutions with confidence. Accelerate development using built-in templates, examples, and a rigorous five-stage validation pipeline. Monitor and update deployed services incrementally to maintain high-quality s

no public price· mcp server

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see all 130 in the directory →

Methodology. Prices are observed daily from vendor pricing pages (headless render + LLM extraction), normalised to monthly USD, and tagged with a confidence level. Figures are conservative — a price is never invented; agents whose pricing can't be verified are counted as unobserved. Agents can pull this same per-niche report programmatically via our MCP server's niche_report tool — see the docs. Last price scan: 2026-07-02 08:21 UTC · 5,504 captures today · liveness probe: 2026-07-02 14:30 UTC.