Ask natural-language questions over ingested documentation and knowledge sources via the mendableChat endpoint, returning grounded answers with citations. Supports Server-Sent Events streaming, conversation history, retriever options, metadata filtering, and tool calls.
openapi: 3.0.1
info:
title: Mendable API
description: >-
REST API for the Mendable AI answers and enterprise search platform. Create
conversations, ask grounded questions over ingested documentation and
knowledge sources (with Server-Sent Events streaming), ingest and manage
data sources, and rate answers. All endpoints authenticate with a Mendable
api_key passed in the JSON request body; a Bearer token is also accepted.
termsOfService: https://www.mendable.ai/terms
contact:
name: Mendable Support
url: https://docs.mendable.ai
email: help@firecrawl.com
version: '1.0'
servers:
- url: https://api.mendable.ai/v1
description: Mendable production API
security:
- apiKeyBody: []
- bearerAuth: []
tags:
- name: Conversations
description: Create conversation sessions.
- name: Chat
description: Ask grounded questions over ingested content.
- name: Ingestion
description: Ingest and track data sources.
- name: Ratings
description: Rate answer messages.
paths:
/newConversation:
post:
operationId: newConversation
tags:
- Conversations
summary: Create a new conversation
description: >-
Creates a new conversation and returns a conversation_id used to group
subsequent chat interactions into a single grounded session.
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/NewConversationRequest'
responses:
'200':
description: Conversation created.
content:
application/json:
schema:
$ref: '#/components/schemas/NewConversationResponse'
'400':
description: Missing or invalid api_key.
/mendableChat:
post:
operationId: mendableChat
tags:
- Chat
summary: Ask a question over ingested content
description: >-
Sends a question to the Mendable AI assistant grounded in the project's
ingested data. By default the response streams as Server-Sent Events;
set shouldStream to false to receive a single JSON response with the
answer, sources, and message_id.
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/MendableChatRequest'
responses:
'200':
description: >-
Chat answer. When shouldStream is true (default) the body is a
Server-Sent Events stream of source, text, and message_id chunks;
when false the body is a single JSON object.
content:
application/json:
schema:
$ref: '#/components/schemas/MendableChatResponse'
text/event-stream:
schema:
type: string
description: >-
SSE stream. Includes a <|source|> chunk with the sources
array, text chunks forming the answer, and a <|message_id|>
chunk with the message identifier.
'400':
description: Missing or invalid api_key, or missing question.
/ingestData:
post:
operationId: ingestData
tags:
- Ingestion
summary: Ingest a data source by URL
description: >-
Ingests a website, sitemap, GitHub repo, Docusaurus site, YouTube
transcript, or single URL into the project. Returns a task_id used to
poll ingestion status.
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/IngestDataRequest'
responses:
'200':
description: Ingestion started.
content:
application/json:
schema:
$ref: '#/components/schemas/IngestTaskResponse'
'400':
description: Missing or invalid api_key, or missing url.
/ingestDocuments:
post:
operationId: ingestDocuments
tags:
- Ingestion
summary: Ingest raw documents
description: >-
Ingests up to 500 raw documents (2MB per request) with optional
metadata and processing options such as summarization. Returns a
task_id.
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/IngestDocumentsRequest'
responses:
'200':
description: Ingestion started.
content:
application/json:
schema:
$ref: '#/components/schemas/IngestTaskResponse'
'400':
description: Missing or invalid api_key, or invalid documents payload.
/ingestionStatus:
post:
operationId: ingestionStatus
tags:
- Ingestion
summary: Check ingestion task status
description: >-
Returns the current step, status, and completion metrics for an
ingestion task identified by task_id.
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/IngestionStatusRequest'
responses:
'200':
description: Current ingestion task status.
content:
application/json:
schema:
$ref: '#/components/schemas/IngestionStatusResponse'
'400':
description: Missing or invalid api_key, or missing task_id.
/rateMessage:
post:
operationId: rateMessage
tags:
- Ratings
summary: Rate an answer message
description: >-
Submits a positive (1) or negative (-1) rating for an individual answer
message identified by message_id.
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/RateMessageRequest'
responses:
'200':
description: Message rating updated.
content:
text/plain:
schema:
type: string
example: Message rating updated
'400':
description: Missing or invalid api_key, or project not found.
'500':
description: Server error while updating the rating.
components:
securitySchemes:
apiKeyBody:
type: apiKey
in: query
name: api_key
description: >-
Mendable api_key. Sent as the api_key field inside the JSON request
body for every endpoint (modeled here as apiKey for tooling).
bearerAuth:
type: http
scheme: bearer
description: Mendable api_key supplied as a Bearer token in the Authorization header.
schemas:
NewConversationRequest:
type: object
required:
- api_key
properties:
api_key:
type: string
description: Your Mendable API key.
NewConversationResponse:
type: object
properties:
conversation_id:
type: integer
description: Identifier of the newly created conversation.
MendableChatRequest:
type: object
required:
- api_key
- question
- history
properties:
api_key:
type: string
description: Your Mendable API key.
question:
type: string
description: The user's question.
history:
type: array
description: >-
Prior conversation turns, each with prompt and response strings and
optional source objects.
items:
$ref: '#/components/schemas/HistoryItem'
conversation_id:
type: number
description: Conversation identifier returned from /newConversation.
temperature:
type: number
format: float
description: Controls randomness (0.0-1.0).
additional_context:
type: string
description: Extra context appended to the prompt.
relevance_threshold:
type: number
description: Filters out sources scoring below this threshold (0-1).
where:
type: object
additionalProperties: true
description: Metadata-based source filtering.
retriever_options:
type: object
description: Retrieval configuration.
properties:
num_chunks:
type: integer
description: Number of chunks to retrieve.
shouldStream:
type: boolean
default: true
description: Set to false to receive a single JSON response instead of an SSE stream.
tracking:
type: object
additionalProperties: true
description: Analytics metadata such as roleInfo for user role tracking.
HistoryItem:
type: object
properties:
prompt:
type: string
response:
type: string
sources:
type: array
items:
$ref: '#/components/schemas/Source'
MendableChatResponse:
type: object
description: Non-streaming chat response (shouldStream=false).
properties:
answer:
type: object
properties:
text:
type: string
description: The AI-generated answer.
message_id:
type: number
description: Identifier of the answer message.
sources:
type: array
items:
$ref: '#/components/schemas/Source'
tools_used:
type: array
items:
type: object
additionalProperties: true
Source:
type: object
properties:
id:
type: string
content:
type: string
link:
type: string
relevance_score:
type: number
IngestDataRequest:
type: object
required:
- api_key
- url
properties:
api_key:
type: string
description: Server-side Mendable API key.
url:
type: string
description: Target location for data ingestion.
type:
type: string
description: Ingestion method.
default: website-crawler
enum:
- website-crawler
- docusaurus
- github
- youtube
- url
- sitemap
include_paths:
type: array
description: Paths to include during a website-crawler crawl.
items:
type: string
exclude_paths:
type: array
description: Paths to exclude during a website-crawler crawl.
items:
type: string
IngestDocumentsRequest:
type: object
required:
- api_key
- documents
properties:
api_key:
type: string
description: Server-side Mendable API key.
documents:
type: array
description: Up to 500 raw documents (2MB per request).
items:
type: object
properties:
content:
type: string
metadata:
type: object
additionalProperties: true
options:
type: object
additionalProperties: true
description: Processing options such as summarization.
IngestTaskResponse:
type: object
properties:
task_id:
type: integer
description: Identifier used to poll ingestion status.
IngestionStatusRequest:
type: object
required:
- api_key
- task_id
properties:
api_key:
type: string
task_id:
type: integer
IngestionStatusResponse:
type: object
properties:
step:
type: string
description: Current ingestion step.
status:
type: string
description: Current task status.
completion:
type: object
additionalProperties: true
description: Completion metrics.
RateMessageRequest:
type: object
required:
- api_key
- message_id
- rating_value
properties:
api_key:
type: string
message_id:
type: integer
description: Identifier of the message being rated.
rating_value:
type: integer
description: 1 for positive, -1 for negative.
enum:
- 1
- -1