Pay as you go

No subscription. No monthly fees. Pay only for what you use.

Two Currencies

LangCoin (LCN)

Purchased with real money via Stripe. Required for code generation (Tier 3) — any operation that calls an external LLM provider. Also accepted for graph queries and envelope assembly.

1 LCN = 20 NOK. Minimum purchase: 5 LCN (100 NOK).

SynCoin (SYN)

Earned through contributions. When your queries add value to the shared pattern graph, you earn SYN. Spent automatically on graph queries and envelopes — internal operations that don’t require an external LLM.

Cannot be purchased. SYN cannot pay for LLM calls.

What Things Cost

// Tier 1: Code Oracle

10 mSYN per query
Structural graph queries — function lookup, callers, callees, dependencies, impact analysis, rules, patterns, plus architecture analytics (circular dependencies, god classes, API surface, module topology) and change analytics (refactor-preview, breaking-change, commit-impact).
  • SYN spent first, LCN fallback
  • 10 queries = 0.01 SYN
  • Fast — no LLM involved

// Tier 2: Envelopes

50 mSYN per envelope
Cartographer envelope assembly plus deeper graph traversals — whole-graph architecture map (PageRank), abstraction clustering, data-flow BFS, and change composition (deprecation-path, risky, review).
  • SYN spent first, LCN fallback
  • Envelope only — no generation
  • Use your own LLM key downstream

// Tier 3: Generate

Dynamic per call
Full forge cycle: envelope + LLM generation + audit. Cost depends on model and token usage.
  • LCN required (no SYN)
  • 3x markup over provider cost
  • Minimum 100 mLCN per call
  • Claude Sonnet avg ~366 mLCN (~7.3 NOK)

// Scan

100 mSYN per scan
Parse a repository and build the code graph. Server-side compute only.
  • SYN spent first, LCN fallback

// Ingest

100 mSYN per ingest
Import parsed AST data into the graph. Server-side compute only.
  • SYN spent first, LCN fallback

Semantic Search

Three key-delivery modes — pick your tradeoff between privacy, cost, and embedder quality. Every mode surfaces the same graph-expanded result shape (callers, callees, type relations) — the embedding supplies candidates; the graph layer supplies the moat.

// Local (zero-egress)

50 mSYN per embed job
Ollama jina-embeddings-v2-base-code on our infrastructure. Your code never leaves our private network. Sharpest fit for regulated industries, cloud-LLM competitors, and security-heavy shops. Code-specific training + 160M params @ 768-dim — selected per FG-40 LevelDB bake-off 2026-04-19 for calibrated adversarial behaviour (max out-of-scope top-1 0.41 vs qodo’s 0.96).
  • 10 mSYN per semantic-search query
  • No API keys, no external calls
  • SYN-only, no LCN flow

// BYOK (bring-your-own-key)

Free at ingest
You supply an OpenAI or Voyage API key. Tenant pays the provider directly — we don’t mark up your vendor invoice. Every token embedded mints SYN back to you (1 mSYN per 1,000 tokens) so your internal-reasoning balance grows as you scale.
  • 10 mSYN per semantic-search query (minted SYN pays first)
  • OpenAI text-embedding-3-small / -large, Voyage voyage-code-3
  • Key stored AES-256-GCM encrypted at rest

// Managed

Dynamic LCN per token
We hold the key; you pay in LCN. Passthrough provider cost plus our standard 3× margin. Same providers as BYOK, but no vendor account required. Default: Voyage voyage-code-3 — selected via benchmark comparison on google/leveldb 1.23 (MRR@10 0.79 vs OpenAI text-embedding-3-small at 0.48 — see methodology). Override with ?provider=openai when requesting.
  • Voyage voyage-code-3 (default): ~0.12 USD/1M tok (~198 mLCN/1M tok)
  • OpenAI text-embedding-3-small: ~0.02 USD/1M tok (~33 mLCN/1M tok)
  • OpenAI text-embedding-3-large: ~0.13 USD/1M tok (~215 mLCN/1M tok)
  • Minimum 1 mLCN per embed call

Getting Started

// 10 Free Generate Calls

Every new account gets 10 free Tier 3 (generate) calls. Use them to see what DKE-Forge can do before buying any LangCoin. Graph queries and envelopes work immediately — new accounts start with a small SYN balance.

Buy LangCoin

Variable Quantity

20 NOK per LCN
Choose how much to buy. Minimum 5 LCN (100 NOK). Payment via Stripe — Visa, Mastercard, Apple Pay, Google Pay.

Log in to buy

Sandbox Currently in beta — all payments use Stripe test mode. Use card 4242 4242 4242 4242 with any future expiry.

FAQ

Why two currencies?

LCN covers real costs (LLM providers charge us per token). SYN rewards contributions to the shared knowledge graph — your scan/query activity makes the graph better for everyone.

What if I run out of SYN?

Graph queries and envelopes fall through to LCN. You can always use the service — SYN just gives you a cheaper path for internal operations.

Can I use SYN for generation?

No. Generation calls external LLM providers that charge in fiat, so it requires LCN. SYN is for internal compute operations only.

How do I earn SYN?

When your usage contributes patterns to the shared graph (e.g. a structural pattern gets promoted from your private graph to the shared pattern library), you earn SYN. More contribution mechanisms are coming.

Is there a subscription?

No. Pay-as-you-go only. Your LangCoin balance never expires. No recurring charges.

Refund policy?

Unused LangCoin is refundable within 30 days of purchase. Contact support for refunds.

Does “Local mode” really mean my code stays on your server?

Yes. Local-mode embedding runs on an Ollama instance co-located with our forge-api — your function signatures and docstrings get embedded into vectors in-process and never leave the host. No external provider sees the content, not even us (the operator of the host) beyond infrastructure logs. If your threat model requires stricter isolation than that, the on-prem deployment is the next step — talk to us.

Why does BYOK mint SYN?

BYOK tenants contribute the compute cost of embedding their own corpus. That contribution translates to a small SYN balance you can spend on future internal operations — searches, envelopes, graph queries. One mSYN per 1,000 tokens embedded keeps the contribution flywheel anchored without over-minting.