Comparison
agent-protocol vs parlant
Verdict
Pick agent-protocol if agent-protocol provides a standardized interface for interacting with various AI agents regardless of their underlying tech stack, aiming to ease development, deployment, and benchmarking; pick parlant if parlant is a specialized interaction control harness designed to ensure that AI agents, particularly those in customer service roles, behave predictably and align with predefined rules.
Markdown twin · agent-protocol alternatives · parlant alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | agent-protocol | parlant |
|---|---|---|
| Maintenance | Dormant (484d since push) As of 2w · github_public_v1 | Steady (38d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of 2w · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| OSV dependency advisories | Published findings As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- agent-protocol
- Common interface for AI agents
- parlant
- Build reliable customer-facing AI agents with Parlant: an interaction control harness optimized for controlled, consistent, and predictable LLM interactions.
Stars
- agent-protocol
- 1.5k
- parlant
- 18k
Forks
- agent-protocol
- 185
- parlant
- 1.6k
Open issues
- agent-protocol
- 50
- parlant
- 42
Language
- agent-protocol
- Python
- parlant
- Python
Adopt for
- agent-protocol
- agent-protocol provides a standardized interface for interacting with various AI agents regardless of their underlying tech stack, aiming to ease development, deployment, and benchmarking.
- parlant
- Parlant is a specialized interaction control harness designed to ensure that AI agents, particularly those in customer service roles, behave predictably and align with predefined rules.
Persona
- agent-protocol
- -
- parlant
- -
Runtime
- agent-protocol
- -
- parlant
- -
License
- agent-protocol
- MIT
- parlant
- Parlant is available under the Apache-2.0 license, allowing for unrestricted commercial use as long as proper attribution is given.
Last pushed
- agent-protocol
- Apr 8, 2025
- parlant
- Jul 12, 2026
Categories
- agent-protocol
- AI Agents
- parlant
- AI Agents
Trust and health
Maintenance
- agent-protocol
- Dormant (18%)
- parlant
- Steady (60%)
Days since push
- agent-protocol
- 484d
- parlant
- 38d
Open issues (now)
- agent-protocol
- 50
- parlant
- 42
Stars delta
- agent-protocol
- Unknown
- parlant
- +74 (30d)
Open issues delta
- agent-protocol
- Unknown
- parlant
- +3 (30d)
OSV dependency advisories
- agent-protocol
- Published findings
- parlant
- No lockfile (source not queried)
Full report
- agent-protocol
- Trust report
- parlant
- Trust report
Choose agent-protocol if…
- License: agent-protocol is MIT, parlant is Apache-2.0.
- Tags unique to agent-protocol: agents, ai-agent, api, auto-gpt.
- When you want to ensure interoperability between different AI agents irrespective of the frameworks used by them.
When NOT to use agent-protocol
- If you are developing an isolated system with no intention to communicate or integrate with other AI agents outside this scope.
- When working in environments where specific, proprietary interfaces provide significantly better performance or features than adhering to a generic protocol could offer.
Choose parlant if…
- License: parlant is Apache-2.0, agent-protocol is MIT.
- Pricing: The open-source version offers community-supported functionalities which are free to use but might lack advanced support services..
- Tags unique to parlant: ai-agents, ai-alignment, customer-service, customer-success.
- When you need precise control over the actions of AI agents based on specific conditions or observations.
When NOT to use parlant
- When the requirements for agent interactions do not demand granular rules based on observable user behavior or conditions, making this level of control unnecessary.
- In cases where the flexibility and spontaneous responses from general-purpose LLMs are preferred without being restricted by controlled guidelines.
- If your project involves minimal interaction types that can be managed with less sophisticated frameworks, thus negating the need for Parlant's advanced condition setting capabilities.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (agi-inc/agent-protocol) · observed Aug 6, 2026
- GitHub forks (agi-inc/agent-protocol) · observed Aug 6, 2026
- Last push (agi-inc/agent-protocol) · observed Apr 8, 2025
- License file (MIT) · observed Aug 6, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (emcie-co/parlant) · observed Aug 20, 2026
- GitHub forks (emcie-co/parlant) · observed Aug 20, 2026
- Last push (emcie-co/parlant) · observed Jul 12, 2026
- License file (Apache-2.0) · observed Aug 20, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: agent-protocol 1.5k · parlant 18k (synced Aug 6, 2026).
Common questions
- What is the difference between agent-protocol and parlant?
- agent-protocol: Common interface for AI agents. parlant: Build reliable customer-facing AI agents with Parlant: an interaction control harness optimized for controlled, consistent, and predictable LLM interactions.. See the comparison table for live GitHub stats and shared categories.
- When should I choose agent-protocol over parlant?
- Choose agent-protocol over parlant when License: agent-protocol is MIT, parlant is Apache-2.0; Tags unique to agent-protocol: agents, ai-agent, api, auto-gpt; When you want to ensure interoperability between different AI agents irrespective of the frameworks used by them.
- When should I choose parlant over agent-protocol?
- Choose parlant over agent-protocol when License: parlant is Apache-2.0, agent-protocol is MIT; Pricing: The open-source version offers community-supported functionalities which are free to use but might lack advanced support services.; Tags unique to parlant: ai-agents, ai-alignment, customer-service, customer-success; When you need precise control over the actions of AI agents based on specific conditions or observations.
- When should I avoid agent-protocol?
- If you are developing an isolated system with no intention to communicate or integrate with other AI agents outside this scope. When working in environments where specific, proprietary interfaces provide significantly better performance or features than adhering to a generic protocol could offer.
- When should I avoid parlant?
- When the requirements for agent interactions do not demand granular rules based on observable user behavior or conditions, making this level of control unnecessary. In cases where the flexibility and spontaneous responses from general-purpose LLMs are preferred without being restricted by controlled guidelines. If your project involves minimal interaction types that can be managed with less sophisticated frameworks, thus negating the need for Parlant's advanced condition setting capabilities.
- Is agent-protocol or parlant more popular on GitHub?
- parlant has more GitHub stars (18,253 vs 1,458). Stars measure visibility, not whether either tool fits your constraints.
- Are agent-protocol and parlant open source?
- Yes - both are open-source projects on GitHub (agent-protocol: MIT, parlant: Apache-2.0).
- Where can I find alternatives to agent-protocol or parlant?
- GraphCanon lists graph-backed alternatives at agent-protocol alternatives and parlant alternatives (agent-protocol markdown twin, parlant markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, agent-protocol or parlant?
- agent-protocol: Dormant. parlant: Steady. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for agent-protocol and parlant?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: agent-protocol trust report; parlant trust report.