How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
LangChain

LangChain feedback API

The feedback API from LangChain — 7 operation(s) for feedback.

Documentation Provider Profile APIs.io OpenAPI GitHub

LangChain feedback API is one of 66 APIs that LangChain publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Feedback. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and authentication docs.

This API exposes 15 operations across 7 paths, and defines 23 schemas. It is described by OpenAPI 3.1.0, at version 0.1.0.

Requests are made against a single base URL, /.

15 operations 7 paths 23 schemas 2 DELETE6 GET1 PATCH5 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
0.1.0
Base URL
https://api.smith.langchain.com
Authentication
API Key, API Key, HTTP Bearer, API Key
Resource Areas
1

Authentication & Security 4

LangChain feedback API declares 4 security schemes for authenticating requests. An API key is passed in the header as X-API-Key (API Key). An API key is passed in the header as X-Tenant-Id (Tenant ID). It accepts HTTP bearer tokens (Bearer Auth). An API key is passed in the header as X-Organization-Id (Organization ID).

  • Bearer Auth — Bearer tokens are used to authenticate from the UI. Must also specify x-tenant-id or x-organization-id (for org scoped apis).

Paths & Operations 15

Across 7 paths, the API surfaces 15 operations — 2 DELETE, 6 GET, 1 PATCH, 5 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

feedback 15
POST
/api/v1/feedback/formulas
Create Feedback Formula Ep
create_feedback_formula_ep_api_v1_feedback_formulas_post body → 200422
GET
/api/v1/feedback/formulas
List Feedback Formula Ep
list_feedback_formula_ep_api_v1_feedback_formulas_get 4 params → 200422
GET
/api/v1/feedback/formulas/{feedback_formula_id}
Get Feedback Formula Ep
get_feedback_formula_ep_api_v1_feedback_formulas__feedback_formula_id__get 1 param → 200422
PUT
/api/v1/feedback/formulas/{feedback_formula_id}
Update Feedback Formula Ep
update_feedback_formula_ep_api_v1_feedback_formulas__feedback_formula_id__put 1 param body → 200422
DELETE
/api/v1/feedback/formulas/{feedback_formula_id}
Delete Feedback Formula Endpoint
delete_feedback_formula_endpoint_api_v1_feedback_formulas__feedback_formula_id__delete 1 param → 200422
GET
/api/v1/feedback/{feedback_id}
Read Feedback
read_feedback_api_v1_feedback__feedback_id__get 2 params → 200422
PATCH
/api/v1/feedback/{feedback_id}
Update Feedback
update_feedback_api_v1_feedback__feedback_id__patch 1 param body → 200422
DELETE
/api/v1/feedback/{feedback_id}
Delete Feedback
delete_feedback_api_v1_feedback__feedback_id__delete 1 param → 200422
GET
/api/v1/feedback
Read Feedbacks
read_feedbacks_api_v1_feedback_get 14 params → 200422
POST
/api/v1/feedback
Create Feedback
create_feedback_api_v1_feedback_post body → 200422
POST
/api/v1/feedback/eager
Eagerly Create Feedback
eagerly_create_feedback_api_v1_feedback_eager_post body → 200422
POST
/api/v1/feedback/tokens
Create Feedback Ingest Token
create_feedback_ingest_token_api_v1_feedback_tokens_post body → 200422
GET
/api/v1/feedback/tokens
List Feedback Ingest Tokens
list_feedback_ingest_tokens_api_v1_feedback_tokens_get 1 param → 200422
GET
/api/v1/feedback/tokens/{token}
Create Feedback With Token Get
create_feedback_with_token_get_api_v1_feedback_tokens__token__get 5 params → 200422
POST
/api/v1/feedback/tokens/{token}
Create Feedback With Token Post
create_feedback_with_token_post_api_v1_feedback_tokens__token__post 1 param body → 200422

Schemas 23

The contract defines 23 schemas that model the data the API accepts and returns. The most detailed are FeedbackSchema (18 properties), FeedbackCreateSchema (17 properties), FeedbackFormula (8 properties), FeedbackSource (5 properties). Each schema is shown below with its type and property counts.

AutoEvalFeedbackSource
object
Auto eval feedback source.
2 properties
ValidationError
object
3 properties 3 required
FeedbackFormulaWeightedVariable
object
3 properties 3 required
FeedbackLevel
string
Enum for feedback levels.
FeedbackCategory
object
Specific value and label pair for feedback
2 properties 1 required
FeedbackSchema
object
Schema for getting feedback.
18 properties 2 required
HTTPValidationError
object
1 property
ModelFeedbackSource
object
Model feedback source.
2 properties
AppFeedbackSource
object
Feedback from the LangChainPlus App.
2 properties
FeedbackFormulaCreate
object
5 properties 3 required
FeedbackIngestTokenSchema
object
Feedback ingest token schema.
4 properties 4 required
FeedbackCreateWithTokenExtendedSchema
object
Feedback create schema with token.
5 properties
FeedbackCreateSchema
object
Schema used for creating feedback.
17 properties 1 required
FeedbackFormulaUpdate
object
3 properties 3 required
TimedeltaInput
object
Timedelta input.
3 properties
FeedbackIngestTokenCreateSchema
object
Feedback ingest token create schema.
5 properties 2 required
FeedbackType
string
Enum for feedback types.
APIFeedbackSource
object
API feedback source.
2 properties
FeedbackSource
object
The feedback source loaded from the database.
5 properties
SourceType
string
Enum for feedback source types.
FeedbackFormula
object
8 properties 6 required
FeedbackConfig
object
4 properties 1 required
FeedbackUpdateSchema
object
Schema used for updating feedback
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

langchain-feedback-api-openapi.yml Raw ↑

Other APIs LangChain publishes across the network.

LangChain access_policies API
AE Profile APIs.io
LangChain ace API
AE Profile APIs.io
LangChain alert_rules API
AE Profile APIs.io
LangChain annotation-queues API
AE Profile APIs.io
LangChain api-key API
AE Profile APIs.io
LangChain audit-logs API
AE Profile APIs.io
LangChain auth API
AE Profile APIs.io
LangChain aws_marketplace API
AE Profile APIs.io
LangChain backfills API
AE Profile APIs.io
LangChain beacon API
AE Profile APIs.io
LangChain bulk-exports API
AE Profile APIs.io
LangChain charts API
AE Profile APIs.io
#Feedback
← Back to L APIs
API Details
ID
langchain:langchain-feedback-api
Base URL
https://api.smith.langchain.com
Docs
https://docs.langchain.com/langsmith
Provider
LangChain
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=langchain-feedback-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/langchain-feedback-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of LangChain feedback API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.