Agents on Chord

Chord is built for agents first: every number the app shows is one GET away, amounts are strings, errors are stable codes, and nothing needs a browser. The ways in:

Path	What it is	Best for
Docs MCP	this documentation as tools — search, read a page, look up an endpoint with a real example; hosted at getchord.xyz/docs/mcp	any agent writing code against the API; no key, no install
Agent skill	SKILL.md, references and a dependency-free Python client in the Agent Skills format; one curl loop installs it, no repository access	Claude Code, Codex, OpenClaw, Hermes: read prices and boards on every chain, quote, prepare an unsigned swap
MCP server	hosted at api.getchord.xyz/v1/mcp: 17 tools, every chain as a parameter, one URL per chain with ?chain=	Claude Code, Claude Desktop, Cursor, any MCP client; no install, key optional
Function calling	the same tools as OpenAI-style JSON Schema, public at api.getchord.xyz/v1/mcp/tools.json	OpenAI, LangChain, anything that takes a manifest
Ask agent API	POST /v1/ask — Chord’s own analyst over the index, 40+ tools, one JSON answer	judgement questions: is this launch real, where is support, who is buying
llms.txt	this documentation as plain text, every page as Markdown, the OpenAPI document, and the discovery files (/.well-known/api-catalog, ai-catalog.json, agent-skills/index.json)	retrieval, system prompts, codegen by a model, finding Chord’s tools from the domain alone

Prepare, then sign

The API is non-custodial. A tool that trades returns an unsigned transaction; the agent’s own wallet signs it and broadcasts it to the chain it names. Chord never sees a private key, never holds funds, never broadcasts. Read otherAmountThreshold before signing — it is the minimum the transaction enforces — and simulate with POST /v1/swap/simulate when the wallet cannot.

Which tool for which question

• Raw numbers — prices, a token’s tape, who launched what, a wallet’s PnL: the data tools (MCP / manifest) or the REST endpoints directly. Fast, deterministic, free.
• Judgement — “is ARGUS still being bought by real wallets”, “give me an entry ladder”, “compare these three launches”: the Ask agent. 5–40 s, metered, needs a key.
• Trading: chord_quote then chord_swap_tx, or the REST pair /quote → /swap, on any EVM chain Chord routes; Solana swaps go through /v1/sol/trade/*.

Keys

Read tools work without a key at the anonymous limit. Set CHORD_API_KEY (MCP) or send X-API-Key (manifest, REST) to run at your plan’s limit; the Ask agent requires one. Keys come from getchord.xyz/developer.