FIXSIM Sessions API
The Sessions API from FIXSIM — 3 operation(s) for sessions.
Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/fixsim-com:fixsim-com-sessions-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
title: Fixsim Com Sessions API
version: v1
description: 'Operations tagged Sessions across 2 of this provider''s published API definitions: fixsim-com-openapi.json, portal.fixsim.com.swagger.json. Each path carries the servers of the definition it was published in.'
security:
- ApiKey: []
tags:
- name: Sessions
paths:
/v1/Sessions/{instance}:
get:
tags:
- Sessions
summary: Get a list of all the Sessions for your FIXSIM Account by Instance
parameters:
- name: instance
in: path
description: The FIXSIM Instance name
required: true
schema:
type: string
responses:
'200':
description: OK
content:
text/plain:
schema:
type: array
items:
$ref: '#/components/schemas/SessionInfo'
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/SessionInfo'
text/json:
schema:
type: array
items:
$ref: '#/components/schemas/SessionInfo'
operationId: getV1SessionsByInstance
x-operation-id-source: derived
put:
tags:
- Sessions
parameters:
- name: instance
in: path
required: true
schema:
type: string
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/SessionInfo'
text/json:
schema:
$ref: '#/components/schemas/SessionInfo'
application/*+json:
schema:
$ref: '#/components/schemas/SessionInfo'
responses:
'200':
description: OK
summary: Replace sessions by instance
x-summary-source: derived
operationId: putV1SessionsByInstance
x-operation-id-source: derived
/v1/Sessions/{instance}/{session}:
get:
tags:
- Sessions
summary: Get a Session's settings
parameters:
- name: instance
in: path
description: Target FIXSIM Instance
required: true
schema:
type: string
- name: session
in: path
description: Target Session
required: true
schema:
type: string
responses:
'200':
description: OK
content:
text/plain:
schema:
$ref: '#/components/schemas/SessionInfo'
application/json:
schema:
$ref: '#/components/schemas/SessionInfo'
text/json:
schema:
$ref: '#/components/schemas/SessionInfo'
operationId: getV1SessionsByInstanceBySession
x-operation-id-source: derived
patch:
tags:
- Sessions
summary: Update a Session's settings
parameters:
- name: instance
in: path
description: ''
required: true
schema:
type: string
- name: session
in: path
description: ''
required: true
schema:
type: string
requestBody:
description: ''
content:
application/json:
schema:
$ref: '#/components/schemas/UpdateSessionInfo'
text/json:
schema:
$ref: '#/components/schemas/UpdateSessionInfo'
application/*+json:
schema:
$ref: '#/components/schemas/UpdateSessionInfo'
responses:
'200':
description: OK
content:
text/plain:
schema:
$ref: '#/components/schemas/SessionInfo'
application/json:
schema:
$ref: '#/components/schemas/SessionInfo'
text/json:
schema:
$ref: '#/components/schemas/SessionInfo'
operationId: patchV1SessionsByInstanceBySession
x-operation-id-source: derived
delete:
tags:
- Sessions
parameters:
- name: instance
in: path
required: true
schema:
type: string
- name: session
in: path
required: true
schema:
type: string
responses:
'200':
description: OK
summary: Delete sessions by instance by session
x-summary-source: derived
operationId: deleteV1SessionsByInstanceBySession
x-operation-id-source: derived
/v1/SessionsSeq/{instance}/{session}:
patch:
tags:
- Sessions
summary: Update a Session's FIX Sequence Numbers
parameters:
- name: instance
in: path
description: Instance Name
required: true
schema:
type: string
- name: session
in: path
description: Session Name
required: true
schema:
type: string
- name: sending
in: query
description: FIXSIM's sending sequence number. (Leave null to not update)
schema:
type: integer
format: int32
- name: rcvd
in: query
description: Sequence number FIXSIM expects to receive from your application. (Leave null to not update)
schema:
type: integer
format: int32
responses:
'200':
description: OK
content:
text/plain:
schema:
$ref: '#/components/schemas/SessionInfo'
application/json:
schema:
$ref: '#/components/schemas/SessionInfo'
text/json:
schema:
$ref: '#/components/schemas/SessionInfo'
operationId: patchV1SessionsSeqByInstanceBySession
x-operation-id-source: derived
components:
schemas:
SessionInfo:
type: object
properties:
sessionName:
type:
- string
- 'null'
fixVersion:
type:
- string
- 'null'
senderCompId:
type:
- string
- 'null'
targetCompId:
type:
- string
- 'null'
isEnabled:
type: boolean
isLoggedIn:
type: boolean
isAcceptor:
type: boolean
ipAddress:
type:
- string
- 'null'
port:
type: integer
format: int32
startTime:
type:
- string
- 'null'
endTime:
type:
- string
- 'null'
timeZone:
type:
- string
- 'null'
appDataDictionary:
type:
- string
- 'null'
sendingSeqNum:
type:
- integer
- 'null'
format: int32
rcvdSeqNum:
type:
- integer
- 'null'
format: int32
additionalProperties: false
UpdateSessionInfo:
type: object
properties:
enabled:
type:
- boolean
- 'null'
fixVersion:
type:
- string
- 'null'
senderCompId:
type:
- string
- 'null'
targetCompId:
type:
- string
- 'null'
ipAddress:
type:
- string
- 'null'
port:
type:
- integer
- 'null'
format: int32
startTime:
type:
- string
- 'null'
endTime:
type:
- string
- 'null'
timeZone:
type:
- string
- 'null'
additionalProperties: false
securitySchemes:
ApiKey:
type: apiKey
description: API Key Authentication
name: apiKey
in: header
x-refined-from:
- fixsim-com-openapi.json
- portal.fixsim.com.swagger.json