get_belief

Read investment case · $0.02 per call (x402, USDC) Read a requested complete investment case or evidence beyond a brief, with risks, conditions and coverage gaps. An ordinary library overview can use get_brief without opening each case. Use paragraph_index only when it appears in the returned investment_case; follow support/text offsets. Records without investment_case return their full claims and citations without paragraph selectors.

Input parameters

Parameter	Type	Required	Description
`belief_id`	string	Yes	min length 1; max length 128
`as_of`	string	No
`paragraph_index`	integer	No	Read exact source support only for a paragraph_index present in the returned investment_case. Records without investment_case do not support this selector. Requires belief_id. Continue with returned as_of and support/text offsets. min 0; max 44
`support_index`	integer	No	Source support within the selected paragraph; defaults to 0. Use next_support_index for another passage. min 0; max 9007199254740991
`support_text_offset`	integer	No	UTF-16 offset within the selected supporting passage; defaults to 0. Use next_text_offset to continue its text. min 0; max 9007199254740991

Transports

MCP: tools/call with name get_belief at https://beliefstate.ai/mcp (account access) or the wallet-paid x402 MCP server. See MCP integration.
x402 HTTP: POST https://beliefstate.ai/v1/research/get_belief with the arguments as a JSON body. An unpaid request returns an HTTP 402 payment quote.
Related REST resource: GET /v1/beliefs.

Example request

MCP

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_belief",
    "arguments": {
      "belief_id": "00000000-0000-4000-8000-000000000001"
    }
  }
}

x402 HTTP

curl --request POST \
  --url 'https://beliefstate.ai/v1/research/get_belief' \
  --header 'Content-Type: application/json' \
  --data '{"belief_id":"00000000-0000-4000-8000-000000000001"}'

The example shows request shape only. Identifiers are placeholders, not records.

Get Started

Core Concepts

Guides

Reference

Endpoints

Research tools

Input parameters

Transports

Example request

MCP

x402 HTTP

​Input parameters

​Transports

​Example request

​MCP

​x402 HTTP

​Related

Input parameters

Transports

Example request

MCP

x402 HTTP

Related