# 561 Group Issuer Coherence: SEC XBRL Concept Obstruction Sheet > 561 Group Issuer Coherence: SEC XBRL Concept Obstruction Sheet is a paid API for AI agents from market.561.group, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-31). Analyzes historical coherence of a specific SEC XBRL financial concept for a given company, flagging revisions, amendments, and obstructions across filings. ## Facts - Endpoint: GET https://market.561.group/v1/issuer-coherence?utm_source=zero.xyz - Price: $0.05/call - Payment: x402 - Status: unknown - Last checked: 2026-10-31 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/561-group-issuer-coherence-sec-xbrl-concept-obstruction-sheet-fcc2c970 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_edqGK5ueGAufXRu_eUh6G Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability 561-group-issuer-coherence-sec-xbrl-concept-obstruction-sheet-fcc2c970 ``` Example prompt: Pull the issuer coherence obstruction sheet for Apple (ticker AAPL) on the us-gaap concept AccruedLiabilitiesCurrent — I want to see how many times their reported figure was revised across filings and what the damage score looks like. ## When to prefer this Use this endpoint when you need structured, machine-readable analysis of SEC XBRL data coherence — specifically to detect revisions, amendments, and obstructions in a company's financial reporting history for a single concept. Prefer this over raw SEC EDGAR queries when you want pre-computed obstruction scoring and revision certificates rather than raw filing JSON. Ideal for financial due diligence agents, data quality pipelines, or regulatory compliance workflows that need to pay per-query without managing API keys. ## Known failure modes - Invalid ticker symbol returns an error if not found in SEC's ticker list - Invalid or non-existent CIK returns a not-found error - Unknown XBRL concept name (e.g. misspelled tag) returns no data or an error - Concept not reported by issuer returns empty or minimal records - Payment not made (HTTP 402) blocks the request without USDC settlement - Rate limits or SEC EDGAR downtime may cause upstream failures ## How this service works Machine-payable x402 offers and books: software pays per request in USDC on Base over HTTP 402, with no account or API key. ## Output Returns a structured 'concept obstruction sheet' containing: total cell count, shared cells, border count, damage score, erasure cost, list of border certificates (each with left/right filing details, change amount, and revision type), largest revisions with relative change percentages, obstruction count, and a unique content-addressed ID for the result. Also includes issuer name and CIK, concept label and units, and the source SEC EDGAR URL. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "type": "object", "anyOf": [ { "required": [ "ticker" ] }, { "required": [ "cik" ] } ], "required": [ "concept" ], "properties": { "cik": { "type": "string", "pattern": "^[0-9]{1,10}$", "description": "SEC Central Index Key; used instead of ticker when given." }, "ticker": { "type": "string", "pattern": "^[A-Za-z][A-Za-z0-9.-]{0,9}$", "description": "Exchange ticker of any SEC filer, resolved through SEC's ticker list." }, "concept": { "type": "string", "pattern": "^[A-Za-z][A-Za-z0-9]{1,199}$", "description": "XBRL element name, such as Revenues, NetIncomeLoss, Assets or AccruedLiabilitiesCurrent." }, "taxonomy": { "enum": [ "us-gaap", "ifrs-full", "dei", "srt" ], "type": "string", "default": "us-gaap" } }, "additionalProperties": false } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object", "required": [ "kind", "issuer", "concept", "records", "cells", "sharedCells", "obstructions", "damage", "borders", "erasureCost", "erasureIfCollapsed", "largestRevisions", "certificates", "id" ], "properties": { "id": { "type": "string", "pattern": "^ni:///sha-256;[A-Za-z0-9_-]{43}$" }, "kind": { "const": "org.561-group.issuer.concept-obstruction-sheet.v1" }, "cells": { "type": "integer", "minimum": 0 }, "damage": { "type": "integer", "minimum": 0 }, "issuer": { "type": "object", "required": [ "cik" ], "properties": { "cik": { "type": "string" }, "name": { "type": [ … (truncated) ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "id": "ni:///sha-256;1YJsKhxrnnkd_1lpg2UGtLctvgfj5YGEsJFyyI-GS_w", "kind": "org.561-group.issuer.concept-obstruction-sheet.v1", "cells": 37, "damage": 0, "issuer": { "cik": "0000320193", "name": "Apple Inc." }, "source": "https://data.sec.gov/api/xbrl/companyconcept/CIK0000320193/us-gaap/AccruedLiabilitiesCurrent.json", "borders": 2, "concept": { "tag": "AccruedLiabilitiesCurrent", "label": "Accrued Liabilities, Current", "units": [ "USD" ], "taxonomy": "us-gaap" }, "records": 39, "observedAt": "2026-10-26T18:11:00.744Z", "erasureCost": 0, "sharedCells": 10, "certificates": [ { "cell": "USD|..2008-09-27", "kind": "border", "left": { "accn": "0001193125-09-214859", "form": "10-K", "filed": "2009-10-27", "value": 3719000000, "record": "10-K 0001193125-09-214859" }, "right": { "accn": "0001193125-10-012091", "form": "10-K/A", "filed": "2010-01-25", "value": 4224000000, "record": "10-K/A 0001193125-10-012091" }, "change": 505000000, "repair": null, "erasure": 0, "revision": "amendment", "relativeChange": 0.1357891906426459 }, { "cell": "USD|..2009-09-26", "kind": "border", "left": { "accn": "0001193125-09-214859", "form": "10-K", "filed": "2009-10-27", "value": 3376000000, "record": "10-K 0001193125-09-214859" }, "right": { "accn": "0001193125-10-012085", "form": "10-Q", "filed": "2010-01-25", "value": 3852000000, "record": "10-Q 0001193125-10-012085" }, "change": 476000000, "repair": null, "erasure": 0, "revision": "later report", "relativeChange": 0.1409952606635071 } ], "obstructions": 2, "largestRevisions": [ { "to": 3852000000, "cell": "USD|..2009-09-26", "from": 3376000000, "revisedBy": "10-Q 0001193125-10-012085", "relativeChange": 0.1409952606635071 }, { "to": 4224000000, "cell": "USD|..2008-09-27", "from": 3719000000, "revisedBy": "10-K/A 0001193125-10-012091", "relativeChange": 0.1357891906426459 } ], "erasureIfCollapsed": 2 } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/561-group-issuer-coherence-sec-xbrl-concept-obstruction-sheet-fcc2c970/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from market.561.group](https://www.zero.xyz/host/market.561.group/llms.txt)