dVeracity Semantic API

Name: dVeracity Semantic API
Author: dVeracity

AgentA2A

by dVeracityhomepage ↗v0.6.2

Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability720/720 checks ok

when	check	result	http	latency	detail
33 min ago	a2a card	ok	200	18 ms	card: dVeracity Semantic API · 18 skills
2 h ago	a2a card	ok	200	19 ms	card: dVeracity Semantic API · 18 skills
3 h ago	a2a card	ok	200	20 ms	card: dVeracity Semantic API · 18 skills
3 h ago	a2a card	ok	200	52 ms	card: dVeracity Semantic API · 18 skills
5 h ago	a2a card	ok	200	21 ms	card: dVeracity Semantic API · 18 skills
6 h ago	a2a card	ok	200	27 ms	card: dVeracity Semantic API · 18 skills
7 h ago	a2a card	ok	200	22 ms	card: dVeracity Semantic API · 18 skills
7 h ago	a2a card	ok	200	46 ms	card: dVeracity Semantic API · 18 skills
9 h ago	a2a card	ok	200	17 ms	card: dVeracity Semantic API · 18 skills
10 h ago	a2a card	ok	200	28 ms	card: dVeracity Semantic API · 18 skills

Declared by sources

What the publisher says

Attributed to the source that supplied each field. Treated as claims, not facts.

Verified emissions data and the Open Footprint canonical model, for agents. Eighteen read-only tools over MCP (remote Streamable HTTP with OAuth 2.1, or the stdio npm package): natural-language queries over a verified emissions knowledge graph (metered), the Open Footprint model — entities, sectors, O-DEF semantics, sector guardrails (free) — validation of payloads against the model and published guardrails (metered), and approved regulatory compliance policies (paid plans). Credit-billed with machine-readable HTTP 402 semantics; optional vLEI-verified agent identity (GLEIF-rooted Agent Authorization credentials).

meteredread-onlyfreepaid

Declared skills

semantic_query — Ask a natural-language question about verified emissions data (Open Footprint / PPDM / OGMP-methane knowledge graphs). Cost: metered per credit.
semantic_templates — List the query templates the semantic layer supports (free). Cost: free.
credits_balance — Show the remaining dVeracity API credit balance for this account (free). Cost: free.
list_standards — List the sustainability data standards dVeracity can validate against (free). Cost: free.
validate_data — Validate a data payload against a supported sustainability standard (Validation-as-a-Service). Cost: metered per credit.
keri_identity — Show this agent's verified vLEI identity (agent AID, Legal Entity LEI, authorized scopes) if KERI mode is configured — free. Cost: free.
ofp_models — List the eight Open Footprint canonical model domains and which database dialects have published DDL (free). Cost: free.
ofp_search_entities — Search the 239 canonical Open Footprint entities by concept (free). Cost: free.
ofp_entity — Get one canonical entity in full (free): fields with types and required flags, primary key, relationships, and the physical database table implementing it. Cost: free.
ofp_sectors — List industry sectors and their reference implementations (free). Cost: free.
ofp_sector — Get one sector in full (free): its classification, status, reference artifacts and nested industries. Cost: free.
ofp_policies — Get a sector's policy guardrails as Rego source (free), with policies[].inputs listing the record types and input fields each policy reads — e-ledger fields such as co2e_kg and direction, not canonical Open Footprint fie Cost: free.
compliance_policies — List APPROVED regulatory compliance policies — rules AI-extracted from a regulation (for example EU Green Bonds, CSRD/ESRS) and approved by a dVeracity admin. Cost: paid plans (VaaS and above).
compliance_policy — One APPROVED regulatory compliance policy in full: its Rego source, the structured rules the extractor produced, the record types and input fields the Rego reads, and provenance (source regulation document, extraction mo Cost: paid plans (VaaS and above).
ofp_validate — Check a data payload against the canonical Open Footprint model and, when a sector is named, that sector's published Rego guardrails. Cost: metered per credit.
ofp_semantics — List the O-DEF semantic codes carried by the canonical model (free). Cost: free.
ofp_semantic_code — Show which canonical fields carry one O-DEF semantic code (free). Cost: free.
ofp_model_provenance — Show which snapshot of the Open Footprint standard this deployment serves (free): source commit, date, and entity/sector counts. Cost: free.

kind A2A Agent Card

name A2A Agent Card

summary A2A Agent Card

version A2A Agent Card

description A2A Agent Card

homepageUrl A2A Agent Card

publisherUrl A2A Agent Card

publisherName A2A Agent Card

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

A2A Agent Cardhttps://dveracity.com/.well-known/agent.json

first seen 2 mo ago · fetched 8 d agoopen ↗

Field history (12 recent events)

22 d ago · declared · version → "0.6.2"
1 mo ago · declared · summary → "Verified emissions data and the Open Footprint canonical model, for agents. Eighteen read-only tools over MCP (remote S
1 mo ago · declared · description → "Verified emissions data and the Open Footprint canonical model, for agents. Eighteen read-only tools over MCP (remote S
1 mo ago · declared · version → "0.6.0"
1 mo ago · claimed · ownership → {"method":"well_known_file","target":"dveracity.com"}
2 mo ago · declared · version → "1.0.0"
2 mo ago · declared · summary → "Metered natural-language queries over a verified emissions knowledge graph (Open Footprint / PPDM / OGMP-methane), plus
2 mo ago · declared · protocols → ["a2a"]
2 mo ago · declared · description → "Metered natural-language queries over a verified emissions knowledge graph (Open Footprint / PPDM / OGMP-methane), plus
2 mo ago · declared · publisherName → "dVeracity"
2 mo ago · declared · publisherUrl → "https://dveracity.com"
2 mo ago · declared · homepageUrl → "https://dveracity.com/api/v1/semantic/manifest"

Evidence

What the publisher says

Capabilities

Where this record came from