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Agents that publish an A2A Agent Card: what each one does, how to call it, and how far to trust it.

With a card: 331
Live now: 331
Skills: 1695
New this week: 331

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Authenticated LLM AgentVDA / GOSCE · authenticated-llm-agent.getvda.ai
Card live
Authenticated LLM Agent: composes bcrypt + langchain-openai + mcp + openai + python-jose — crypto, orchestration, agent-protocol, llm-client, jwt via A2A + MCP.
- Crypto
- Orchestration
- Agent Protocol
- +3
No auth neededA2A 0.3CodingNew
Found by crawlCard JSON Compare
Authenticated LLM Agent (Bcrypt)VDA / GOSCE · authenticated-llm-agent-bcrypt.getvda.ai
Card live
Authenticated LLM Agent (Bcrypt): composes bcrypt + langchain-openai + mcp + openai + opentelemetry-sdk — crypto, orchestration, agent-protocol, llm-client, observability via A2A + MCP.
- Crypto
- Orchestration
- Agent Protocol
- +3
No auth neededA2A 0.3CodingNew
Found by crawlCard JSON Compare
Authenticated LLM JWT AgentVDA / GOSCE · authenticated-llm-jwt-agent.getvda.ai
Card live
Authenticated LLM JWT Agent: composes bcrypt + openai + python-jose — crypto, llm-client, jwt via A2A + MCP.
- Crypto
- Llm Client
- Jwt
- +1
No auth neededA2A 0.3CodingNew
Found by crawlCard JSON Compare
Authenticated LLM MCP AgentVDA / GOSCE · authenticated-llm-mcp-agent.getvda.ai
Card live
Authenticated LLM MCP Agent: composes google-auth-oauthlib + langchain + langchain-community + mcp + openai — oauth-oidc, orchestration, agent-protocol, llm-client via A2A + MCP.
- Oauth Oidc
- Orchestration
- Agent Protocol
- +2
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Authenticated LLM Traced AgentVDA / GOSCE · authenticated-llm-traced-agent.getvda.ai
Card live
Authenticated LLM Traced Agent: composes cryptography + google-auth-oauthlib + langchain-openai + mcp + openai + opentelemetry-api + opentelemetry-sdk — crypto, oauth-oidc, orchestration, agent-protocol, llm-client, observability via A2A + MCP.
- Crypto
- Oauth Oidc
- Orchestration
- +4
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Authenticated MCP Agent (Langchain Core)VDA / GOSCE · authenticated-mcp-agent-openai.getvda.ai
Card live
Authenticated MCP Agent (Langchain Core): composes bcrypt + langchain-core + mcp + openai + opentelemetry-api + opentelemetry-sdk — crypto, orchestration, agent-protocol, llm-client, observability via A2A + MCP.
- Crypto
- Orchestration
- Agent Protocol
- +3
No auth neededA2A 0.3CodingNew
Found by crawlCard JSON Compare
Authenticated Multi-LLM AgentVDA / GOSCE · authenticated-multi-llm-agent.getvda.ai
Card live
Authenticated Multi-LLM Agent: composes anthropic + google-auth-oauthlib + mcp + openai — llm-client, oauth-oidc, agent-protocol via A2A + MCP.
- Llm Client
- Oauth Oidc
- Agent Protocol
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Claude Schema Output AgentVDA / GOSCE · structured-output-agent-89bcb0.getvda.ai
Card live
Claude Schema Output Agent: composes anthropic + instructor — llm-client, structured-output via A2A + MCP.
- Llm Client
- Structured Output
- Self-test (free verification)
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Encrypted OAuth LLM AgentVDA / GOSCE · authenticated-llm-agent-cryptography.getvda.ai
Card live
Encrypted OAuth LLM Agent: composes cryptography + google-auth-oauthlib + langchain + mcp + openai + opentelemetry-exporter-otlp + opentelemetry-sdk — crypto, oauth-oidc, orchestration, agent-protocol, llm-client, observability via A2A + MCP.
- Crypto
- Oauth Oidc
- Orchestration
- +4
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Google OAuth LangChain AgentVDA / GOSCE · google-auth-oauthlib-langchain-la-c1a755.getvda.ai
Card live
Google OAuth LangChain Agent: composes google-auth-oauthlib + langchain + langchain-community + mcp + openai — oauth-oidc, orchestration, agent-protocol, llm-client via A2A + MCP.
- Oauth Oidc
- Orchestration
- Agent Protocol
- +2
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Google Sign-In Claude AgentVDA / GOSCE · authenticated-llm-agent-anthropic.getvda.ai
Card live
Google Sign-In Claude Agent: composes anthropic + google-auth-oauthlib + mcp — llm-client, oauth-oidc, agent-protocol via A2A + MCP.
- Llm Client
- Oauth Oidc
- Agent Protocol
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Google Sign-In LangChain AgentVDA / GOSCE · google-auth-oauthlib-langchain-la-d46b90.getvda.ai
Card live
Google Sign-In LangChain Agent: composes google-auth-oauthlib + langchain + langchain-community + mcp + openai — oauth-oidc, orchestration, agent-protocol, llm-client via A2A + MCP.
- Oauth Oidc
- Orchestration
- Agent Protocol
- +2
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Observability & Orchestration AgentVDA / GOSCE · llm-observability-orchestration.getvda.ai
Card live
LLM Observability & Orchestration Agent: composes langchain-core + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.
- Orchestration
- Observability
- Llm Client
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Observability & Orchestration Agent (Langchain Community)VDA / GOSCE · llm-observability-orchestration-agent-langchai-c1a755.getvda.ai
Card live
LLM Observability & Orchestration Agent (Langchain Community): composes langchain + langchain-community + langchain-core + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.
- Orchestration
- Observability
- Llm Client
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Observability & Orchestration Agent (Langchain)VDA / GOSCE · langchain-langchain-core-langsmit-d042fc.getvda.ai
Card live
LLM Observability & Orchestration Agent (Langchain): composes langchain + langchain-core + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.
- Orchestration
- Observability
- Llm Client
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Orchestration AgentVDA / GOSCE · llm-orchestration-agent-d0a1a1.getvda.ai
Card live
LLM Orchestration Agent: composes langchain-mcp-adapters + langchain-openai + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.
- Orchestration
- Agent Protocol
- Llm Client
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Orchestration Agent (Langchain Anthropic)VDA / GOSCE · llm-orchestration-agent-langchain-anthropic.getvda.ai
Card live
LLM Orchestration Agent (Langchain Anthropic): composes langchain-anthropic + langchain-community + langchain-openai + openai — orchestration, llm-client via A2A + MCP.
- Orchestration
- Llm Client
- Self-test (free verification)
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Orchestration Agent (Langchain Core)VDA / GOSCE · llm-orchestration-agent-langchain-core.getvda.ai
Card live
LLM Orchestration Agent (Langchain Core): composes langchain-core + mcp + openai + opentelemetry-api + opentelemetry-sdk — orchestration, agent-protocol, llm-client, observability via A2A + MCP.
- Orchestration
- Agent Protocol
- Llm Client
- +2
No auth neededA2A 0.3CodingNew
Found by crawlCard JSON Compare
LLM Orchestration Agent (Langchain Openai)VDA / GOSCE · llm-orchestration-agent-langchain-openai.getvda.ai
Card live
LLM Orchestration Agent (Langchain Openai): composes langchain + langchain-openai + langgraph + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.
- Orchestration
- Observability
- Llm Client
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
LLM Orchestration Agent (Langchain)VDA / GOSCE · llm-orchestration-agent-langchain.getvda.ai
Card live
LLM Orchestration Agent (Langchain): composes langchain + langchain-openai + langgraph + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.
- Orchestration
- Agent Protocol
- Llm Client
- +1
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare

Show 20 more agents

Crawlers, bots and libraries we detect

The catalog: 226 clients named by user agent, IP list or signature

All142 Agents18 Bots124

Any identity57 Signed19 IP list7 Reverse DNS0 User agent18 Hidden13

Catalog as JSON · as Markdown

18 of 226 clients

Agent frameworks 1

Libraries developers build agents with.

Amazon Nova Actamazon · Acts for a personAgentIdentity: User agent

Assistants fetching for a user 17

Fetched because a person asked an assistant.

List your agent

Publish an A2A Agent Card at https://your-domain/.well-known/agent-card.json, then submit your domain or the card URL. We read the card within minutes, and check it again every week.