gulltoppr

gulltoppr provides a universal, safe, agent‑native interface to any EVM smart contract. It resolves ABIs, including unverified ones via decompilation, reads contract state, simulates interactions, and prepares non‑custodial transaction data. Built with TypeScript, viem, and Hono, it powers AI agents to interact with blockchain contracts across all EVM chains, offering a REST engine, MCP tools, and SDKs for seamless integration.

gulltoppr publishes 6 API contracts indexed on the APIs.io network, including Chains API, Contracts API, Names API, and 3 more. Tagged areas include Blockchain, Smart Contracts, Artificial Intelligence, and EVM.

The gulltoppr catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

gulltoppr’s developer surface includes API reference and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

22.0/100 emerging Agent 27/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 Agent Skills

Blockchain Smart Contracts Artificial Intelligence EVM

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 22.0/100 · emerging

Contract Quality 11.8 / 21

Developer Ergonomics 1.5 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 4.6 / 9

Regulatory Posture 0.7 / 15

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 0.0 — up to +20.0 composite points Ask about this →
Developer Ergonomics scores 8.9 — up to +18.2 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/gulltoppr-dev/apis.yml: open an issue on github.com/api-evangelist/gulltoppr-dev to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

gulltoppr Chains API

The chains API from gulltoppr — 1 operation(s) for chains.

gulltoppr Contracts API

The contracts API from gulltoppr — 3 operation(s) for contracts.

gulltoppr Names API

The names API from gulltoppr — 2 operation(s) for names.

gulltoppr Ops API

The ops API from gulltoppr — 5 operation(s) for ops.

gulltoppr Registry API

The registry API from gulltoppr — 3 operation(s) for registry.

gulltoppr Transactions API

The transactions API from gulltoppr — 3 operation(s) for transactions.

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

gulltoppr-dev-contracts-read-data

AGENT SKILL

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Gulltoppr Dev Context

37 classes · 106 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

gulltoppr API Rules

51 rules · 44 error-severity 6 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

AbiResult

9 properties

JSON SCHEMA

CompactAbiResult

9 properties

JSON SCHEMA

Discovery

12 properties

JSON SCHEMA

PreparedTx

7 properties

JSON SCHEMA

SimulateBody

0 properties

JSON SCHEMA

Simulation

7 properties

JSON SCHEMA

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

gulltoppr Domain Security

TLSv1.3

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

gulltoppr Agentic Access

17 operations · 4 acting · 1 human-in-the-loop

17 operations · 4 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: gulltoppr-dev
name: gulltoppr
description: gulltoppr provides a universal, safe, agent‑native interface to any EVM smart contract. It resolves ABIs, including
  unverified ones via decompilation, reads contract state, simulates interactions, and prepares non‑custodial transaction
  data. Built with TypeScript, viem, and Hono, it powers AI agents to interact with blockchain contracts across all EVM chains,
  offering a REST engine, MCP tools, and SDKs for seamless integration.
url: https://artifacts.apis.io/gulltoppr-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-11 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-10'
modified: '2026-11-10'
tags:
- Blockchain
- Smart Contracts
- Artificial Intelligence
- EVM
tags_raw:
- Blockchain
- SmartContracts
- AI
- EVM
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/gulltoppr-dev-agentic-access.yml
- type: Spectral
  url: rules/gulltoppr-dev-rules.yml
- type: JSONLD
  url: json-ld/gulltoppr-dev-context.jsonld
- type: Vocabulary
  url: vocabulary/gulltoppr-dev-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/gulltoppr-dev-data-model.yml
- type: ErrorCatalog
  url: errors/gulltoppr-dev-problem-types.yml
- type: Conformance
  url: conformance/gulltoppr-dev-conformance.yml
- type: LLMsTxt
  url: llms/gulltoppr-dev-llms.txt
- type: Hosts
  url: hosts/gulltoppr-dev-hosts.yml
- type: Vendors
  url: vendors/gulltoppr-dev-vendors.yml
- type: APIReference
  url: https://gulltoppr.dev/llms.txt
- type: DomainSecurity
  url: security/gulltoppr-dev-domain-security.yml
- type: Website
  url: https://gulltoppr.dev/
apis:
- aid: gulltoppr-dev:gulltoppr-dev-chains-api
  name: gulltoppr Chains API
  description: The chains API from gulltoppr — 1 operation(s) for chains.
  humanURL: https://gulltoppr.dev/integrations.md
  baseURL: https://api.gulltoppr.dev
  tags:
  - Chains
  tags_raw:
  - chains
  properties:
  - type: OpenAPI
    url: openapi/gulltoppr-dev-chains-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-discovery-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-prepared-tx-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulate-body-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulation-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-abi-result-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-compact-abi-result-schema.json
- aid: gulltoppr-dev:gulltoppr-dev-contracts-api
  name: gulltoppr Contracts API
  description: The contracts API from gulltoppr — 3 operation(s) for contracts.
  humanURL: https://gulltoppr.dev/integrations.md
  baseURL: https://api.gulltoppr.dev
  tags:
  - Contracts
  tags_raw:
  - contracts
  properties:
  - type: OpenAPI
    url: openapi/gulltoppr-dev-contracts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-discovery-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-prepared-tx-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulate-body-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulation-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-abi-result-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-compact-abi-result-schema.json
- aid: gulltoppr-dev:gulltoppr-dev-names-api
  name: gulltoppr Names API
  description: The names API from gulltoppr — 2 operation(s) for names.
  humanURL: https://gulltoppr.dev/integrations.md
  baseURL: https://api.gulltoppr.dev
  tags:
  - Name
  tags_raw:
  - names
  properties:
  - type: OpenAPI
    url: openapi/gulltoppr-dev-names-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-discovery-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-prepared-tx-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulate-body-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulation-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-abi-result-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-compact-abi-result-schema.json
- aid: gulltoppr-dev:gulltoppr-dev-ops-api
  name: gulltoppr Ops API
  description: The ops API from gulltoppr — 5 operation(s) for ops.
  humanURL: https://gulltoppr.dev/integrations.md
  baseURL: https://api.gulltoppr.dev
  tags:
  - ops
  properties:
  - type: OpenAPI
    url: openapi/gulltoppr-dev-ops-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-discovery-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-prepared-tx-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulate-body-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulation-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-abi-result-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-compact-abi-result-schema.json
- aid: gulltoppr-dev:gulltoppr-dev-registry-api
  name: gulltoppr Registry API
  description: The registry API from gulltoppr — 3 operation(s) for registry.
  humanURL: https://gulltoppr.dev/integrations.md
  baseURL: https://api.gulltoppr.dev
  tags:
  - Registry
  tags_raw:
  - registry
  properties:
  - type: OpenAPI
    url: openapi/gulltoppr-dev-registry-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-discovery-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-prepared-tx-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulate-body-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulation-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-abi-result-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-compact-abi-result-schema.json
- aid: gulltoppr-dev:gulltoppr-dev-transactions-api
  name: gulltoppr Transactions API
  description: The transactions API from gulltoppr — 3 operation(s) for transactions.
  humanURL: https://gulltoppr.dev/integrations.md
  baseURL: https://api.gulltoppr.dev
  tags:
  - Transaction
  tags_raw:
  - transactions
  properties:
  - type: OpenAPI
    url: openapi/gulltoppr-dev-transactions-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-discovery-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-prepared-tx-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulate-body-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-simulation-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-abi-result-schema.json
  - type: JSONSchema
    url: json-schema/gulltoppr-dev-compact-abi-result-schema.json
x-enrichment:
  date: '2026-11-11'
  status: enriched
  artifacts_added: 20
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

gulltoppr API — frequently asked questions

Does gulltoppr have an API?

Yes. APIs.io lists 6 APIs from gulltoppr, including gulltoppr Chains API, gulltoppr Contracts API and gulltoppr Names API, and 3 more.

Is there an OpenAPI specification for the gulltoppr API?

Yes. APIs.io indexes 6 OpenAPI specifications for gulltoppr, each linked for download from this page.

Is the gulltoppr API ready for AI agents?

gulltoppr has a Kin Score of 22.0 out of 100 (emerging) and an Agent Readiness score of 27.0 (agent-aware), scored by API Evangelist on 2026-11-13.

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