Ajaib

Ajaib is an Indonesian fintech and online brokerage founded in 2018 that gives retail investors access to Indonesian stocks, mutual funds, bonds, US stocks and crypto from a single mobile app. It operates PT Ajaib Sekuritas Asia for equities and Ajaib Kripto for digital assets, and became Southeast Asia's first investment unicorn in 2021. Its one public developer surface is the Ajaib Coin Exchange API, a REST trading interface for the crypto venue, documented on GitBook and organized into Market Info, Wallet and Spot Trading. Access is not self-service: clients generate an ECDSASHA256 keypair, email the public key to Ajaib, and sign every request with X-API-KEY, X-SIGNATURE and X-TIMESTAMP headers. Ajaib publishes no OpenAPI, no SDKs and no status page.

Ajaib publishes 3 API contracts indexed on the APIs.io network: Market Info API, Spot Trading API, and Wallet API. Tagged areas include Company, Financial Services, Investing, Brokerage, and Trading.

The Ajaib catalog on APIs.io includes 1 Spectral governance ruleset.

Ajaib’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, authentication, sandbox, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

33.0/100 thin ▬ flat Agent 30/100 agent ready Front door AI 2/6 trace Heartbeat 88/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 3 Agent Skills

Company Financial Services Investing Brokerage Trading Cryptocurrency Cryptocurrency Exchange Stocks Mutual Funds Fintech Indonesia Wealth Management

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 33.0/100 · thin

Contract Quality 2.9 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 3.2 / 15

Operational Transparency 1.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 15.3 — up to +21.2 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Operational Transparency scores 13.2 — up to +11.3 composite points

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.

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/ajaib/apis.yml: open an issue on github.com/api-evangelist/ajaib 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 3

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

Ajaib Market Info API

Retrieve general exchange information.

Ajaib Spot Trading API

View, place and cancel spot orders and trades.

Ajaib Wallet API

Check funds and assets held by the exchange client.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Ajaib Coin Exchange Market Info API

OPEN COLLECTION

Ajaib Coin Exchange Spot Trading API

OPEN COLLECTION

Ajaib Coin Exchange Wallet API

OPEN COLLECTION

Agent Skills 3

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

Quote a book in batch and unwind it safely

AGENT SKILL

Place a spot order and track it to a terminal state

AGENT SKILL

Sign an Ajaib Coin Exchange request

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Ajaib API Rules

65 rules · 61 errors 1 warnings 3 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Ajaib Coin Exchange Overlay

17 actions · update · ajaib-coin-exchange-openapi.yml

DERIVED

Security Posture 3

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

Ajaib Authentication

apiKey/signed-request · 3 schemes

SECURITY

Ajaib Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Ajaib Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Ajaib Agentic Access

14 operations · 6 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

AgenticAccess

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Lifecycle

Conformance

DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

ToolCrosswalk

ToolCrosswalk

Access & Security 4

Authentication, authorization, and security posture

Authentication

Authentication

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Overlay

Overlay

SecondaryMarketListing

SecondaryMarketListing

Source (apis.yml)

aid: ajaib
name: Ajaib
description: 'Ajaib is an Indonesian fintech and online brokerage founded in 2018 that gives retail investors access to Indonesian
  stocks, mutual funds, bonds, US stocks and crypto from a single mobile app. It operates PT Ajaib Sekuritas Asia for equities
  and Ajaib Kripto for digital assets, and became Southeast Asia''s first investment unicorn in 2021. Its one public developer
  surface is the Ajaib Coin Exchange API, a REST trading interface for the crypto venue, documented on GitBook and organized
  into Market Info, Wallet and Spot Trading. Access is not self-service: clients generate an ECDSASHA256 keypair, email the
  public key to Ajaib, and sign every request with X-API-KEY, X-SIGNATURE and X-TIMESTAMP headers. Ajaib publishes no OpenAPI,
  no SDKs and no status page.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: covered
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://avatars.githubusercontent.com/u/45261753?v=4
url: https://raw.githubusercontent.com/api-evangelist/ajaib/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-06'
modified: '2026-08-06'
x-docs-platform: gitbook
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-17
tags:
- Company
- Financial Services
- Investing
- Brokerage
- Trading
- Cryptocurrency
- Cryptocurrency Exchange
- Stocks
- Mutual Funds
- Fintech
- Indonesia
- Wealth Management
tags_raw:
- Company
- Financial Services
- Investing
- Brokerage
- Trading
- Cryptocurrency
- Crypto Exchange
- Stocks
- Mutual Funds
- Fintech
- Indonesia
- Wealth Management
- Financial-Services
apis:
- aid: ajaib:ajaib-market-info-api
  name: Ajaib Market Info API
  description: Retrieve general exchange information.
  humanURL: https://ajaib.gitbook.io/coin-exchange
  baseURL: https://api.ajaib.co.id
  tags:
  - Market Info
  properties:
  - type: OpenAPI
    url: openapi/ajaib-market-info-api-openapi.yml
  - type: Documentation
    url: https://ajaib.gitbook.io/coin-exchange
  - type: APIReference
    url: https://ajaib.gitbook.io/coin-exchange/api-references/market-info
  - type: GettingStarted
    url: https://ajaib.gitbook.io/coin-exchange/getting-started/authentication
  - type: Authentication
    url: authentication/ajaib-authentication.yml
  - type: ErrorCatalog
    url: errors/ajaib-error-codes.yml
  - type: Conventions
    url: conventions/ajaib-conventions.yml
  - type: Sandbox
    url: sandbox/ajaib-sandbox.yml
  - type: DataModel
    url: data-model/ajaib-data-model.yml
  - type: Lifecycle
    url: lifecycle/ajaib-lifecycle.yml
  - type: Conformance
    url: conformance/ajaib-conformance.yml
  - type: ToolCrosswalk
    url: mcp/ajaib-tool-crosswalk.yml
- aid: ajaib:ajaib-spot-trading-api
  name: Ajaib Spot Trading API
  description: View, place and cancel spot orders and trades.
  humanURL: https://ajaib.gitbook.io/coin-exchange
  baseURL: https://api.ajaib.co.id
  tags:
  - Spot Trading
  properties:
  - type: OpenAPI
    url: openapi/ajaib-spot-trading-api-openapi.yml
  - type: Documentation
    url: https://ajaib.gitbook.io/coin-exchange
  - type: APIReference
    url: https://ajaib.gitbook.io/coin-exchange/api-references/market-info
  - type: GettingStarted
    url: https://ajaib.gitbook.io/coin-exchange/getting-started/authentication
  - type: Authentication
    url: authentication/ajaib-authentication.yml
  - type: ErrorCatalog
    url: errors/ajaib-error-codes.yml
  - type: Conventions
    url: conventions/ajaib-conventions.yml
  - type: Sandbox
    url: sandbox/ajaib-sandbox.yml
  - type: DataModel
    url: data-model/ajaib-data-model.yml
  - type: Lifecycle
    url: lifecycle/ajaib-lifecycle.yml
  - type: Conformance
    url: conformance/ajaib-conformance.yml
  - type: ToolCrosswalk
    url: mcp/ajaib-tool-crosswalk.yml
- aid: ajaib:ajaib-wallet-api
  name: Ajaib Wallet API
  description: Check funds and assets held by the exchange client.
  humanURL: https://ajaib.gitbook.io/coin-exchange
  baseURL: https://api.ajaib.co.id
  tags:
  - Wallets
  tags_raw:
  - Wallet
  properties:
  - type: OpenAPI
    url: openapi/ajaib-wallet-api-openapi.yml
  - type: Documentation
    url: https://ajaib.gitbook.io/coin-exchange
  - type: APIReference
    url: https://ajaib.gitbook.io/coin-exchange/api-references/market-info
  - type: GettingStarted
    url: https://ajaib.gitbook.io/coin-exchange/getting-started/authentication
  - type: Authentication
    url: authentication/ajaib-authentication.yml
  - type: ErrorCatalog
    url: errors/ajaib-error-codes.yml
  - type: Conventions
    url: conventions/ajaib-conventions.yml
  - type: Sandbox
    url: sandbox/ajaib-sandbox.yml
  - type: DataModel
    url: data-model/ajaib-data-model.yml
  - type: Lifecycle
    url: lifecycle/ajaib-lifecycle.yml
  - type: Conformance
    url: conformance/ajaib-conformance.yml
  - type: ToolCrosswalk
    url: mcp/ajaib-tool-crosswalk.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://ajaib.co.id/
- type: DeveloperPortal
  url: https://ajaib.gitbook.io/coin-exchange
- type: Documentation
  url: https://ajaib.gitbook.io/coin-exchange
- type: APIReference
  url: https://ajaib.gitbook.io/coin-exchange/api-references/market-info
- type: GettingStarted
  url: https://ajaib.gitbook.io/coin-exchange/getting-started/authentication
- type: GitHubOrganization
  url: https://github.com/ajaibid
- type: Blog
  url: https://ajaib.co.id/belajar
- type: Support
  url: https://ajaib.co.id/pusat-bantuan
- type: TermsOfService
  url: https://ajaib.co.id/legal
- type: PrivacyPolicy
  url: https://ajaib.co.id/legal
- type: Authentication
  url: authentication/ajaib-authentication.yml
- type: ErrorCatalog
  url: errors/ajaib-error-codes.yml
- type: Conventions
  url: conventions/ajaib-conventions.yml
- type: Sandbox
  url: sandbox/ajaib-sandbox.yml
- type: Lifecycle
  url: lifecycle/ajaib-lifecycle.yml
- type: Conformance
  url: conformance/ajaib-conformance.yml
- type: DataModel
  url: data-model/ajaib-data-model.yml
- type: WellKnown
  url: well-known/ajaib-well-known.yml
- type: LLMsTxt
  url: llms/ajaib-llms.txt
- type: X-MCPServerCandidate
  url: mcp/ajaib-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: ToolCrosswalk
  url: mcp/ajaib-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/ajaib-agentic-access.yml
- type: Overlay
  url: overlays/ajaib-coin-exchange-overlay.yaml
- type: Security
  url: security/ajaib-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
  url: security/ajaib-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ajaib-domain-security.yml
- type: SecondaryMarketListing
  url: https://www.hiive.com/securities/ajaib-stock
x-enrichment:
  date: '2026-08-06'
  status: enriched
  artifacts_added: 17
  pass: local-v1
x-coverage:
  state: covered
  reason: null
  detail: Ajaib's public developer surface is the Ajaib Coin Exchange API, fully documented on GitBook with a verbatim llms.txt;
    the API hosts themselves (api.ajaib.co.id, api.ajaib.tech) return a Cloudflare 403 bot challenge on every path, so no
    live spec probe or well-known read was possible there.
  evidence:
  - url: https://ajaib.gitbook.io/coin-exchange/llms.txt
    status: 200
  - url: https://ajaib.gitbook.io/coin-exchange/llms-full.txt
    status: 200
  - url: https://api.ajaib.co.id/openapi.json
    status: 403
  - url: https://ajaib.co.id/.well-known/agent-card.json
    status: 404
  checked: '2026-08-06'

Ajaib API — frequently asked questions

Does Ajaib have an API?

Yes. APIs.io lists 3 APIs from Ajaib, including Ajaib Market Info API, Ajaib Spot Trading API and Ajaib Wallet API.

Is there an OpenAPI specification for the Ajaib API?

Yes. APIs.io indexes 3 OpenAPI specifications for Ajaib, each linked for download from this page.

How do I authenticate with the Ajaib API?

Ajaib uses bearer-token authentication (apiKey/signed-request · 3 schemes). The details are profiled on APIs.io as Ajaib Authentication.

Is the Ajaib API ready for AI agents?

Ajaib has a Kin Score of 33.0 out of 100 (thin) and an Agent Readiness score of 30.0 (agent-ready), scored by API Evangelist on 2026-11-06.

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