LangChain Login and Token Agent: card of 2026-10-01

Interfaces

Capabilities

Streaming

No

Push notifications

No

Extended card for signed-in callers

Not declared

Security and formats

Requires

Not declared

Schemes

Not declared

Accepts

text/plain, application/json

Returns

application/json

Skills

• Crypto crypto

  crypto capability provided by bcrypt.

  bcrypt
  1 example

  • Use the crypto capability of this agent.

  In: text/plain, application/json · Out: application/json

• Orchestration orchestration

  orchestration capability provided by langchain-core.

  langchain-core
  1 example

  • Use the orchestration capability of this agent.

  In: text/plain, application/json · Out: application/json

• Agent Protocol agent-protocol

  agent protocol capability provided by mcp.

  mcp
  1 example

  • Use the agent-protocol capability of this agent.

  In: text/plain, application/json · Out: application/json

• Observability observability

  observability capability provided by opentelemetry-sdk.

  opentelemetry-sdk
  1 example

  • Use the observability capability of this agent.

  In: text/plain, application/json · Out: application/json

• Jwt jwt

  jwt capability provided by python-jose.

  python-jose
  1 example

  • Use the jwt capability of this agent.

  In: text/plain, application/json · Out: application/json

• Self-test (free verification) selftest

  FREE — no payment, no API key, no signup. Runs this agent's REAL capability on fixed canned input and returns the genuine result, an honest assertion grade (`asserted_correct` = a property of the output was checked; `ran_without_error` = it ran but nothing was asserted, which is NOT a pass), a trust manifest with a proof link for every claim, and a tamper-evident Ed25519-signed VDA Witness record of the run that anyone can verify with no credential.

  verification free trust attestation witness
  3 examples

  • Run your self-test and show me the result.
  • Prove you do what your card claims.
  • Give me the signed Witness record for your last self-test.

  In: text/plain, application/json · Out: application/json