Emulated-Inc/api-calling-training-pool

API calling training pool

Public API-calling data from five datasets, read at the pinned revisions named below and laid out twice. Train on either layer or on both.

pool.jsonl

Every source rewritten into one shape, 199186 rows, one JSON object per line, with these fields.

Field	What it holds
id	a row identifier unique within this file
query	the user's request, as its source publishes it
functions	the declarations offered with the request, as a list of objects
calls	the gold call or calls, each a name and an arguments object
gold	which kind of answer the row carries: call, no_call or none
response	the prose answer, on rows whose gold answer is not a call
language	the language of the request
source	the name of the source directory the row came from
source_repo, source_revision	the dataset and the revision it was read at
source_file, source_row	the raw file it came from and its row number there
source_id	the identifier its source gives the row, where it gives one
provenance_class	how the row came to exist
licence	the licence of the source it came from

Which rows carry which. gold is call on 169370 rows, where calls holds one or more calls and response is null. It is no_call on 29804 rows, where the right answer is to make no call, calls is an empty list and response holds the prose answer the source gives instead, which is usually a refusal or a request for a missing argument. It is none on 12 rows, where the source carries no answer for the request or its answer could not be read, and calls is null: those rows are a request and a catalogue with no key, which is enough to sample from and not enough to imitate. Every row carries query and a non-empty functions.

The declarations are kept in the shape each source publishes them in rather than converted to one schema, because the sources disagree about how to write a type and converting between them would invent information. Rows are deduplicated across sources on the request together with the names of the functions offered with it, keeping the first source that carries it in the order of the sections below.

sources/

The same data untouched, 303431 rows, one directory per source, holding the files at the paths, in the format and with the fields its own repository publishes. Nothing here was renamed, reshaped, reordered or deduplicated, and the later turns of the multi-turn conversations that the rewritten layer cuts to their first exchange are all still here. Use this layer if you want a field the rewritten one drops, such as the acceptable-value lists of the MASSIVE answer keys, the rejected answers in the preference split, or the tool results that come back mid conversation.

The sources

sources/massive_agents

Voice-assistant requests written by crowdworkers, localised into 51 further languages by professional human translators, with human intent and slot annotation, turned mechanically into calls against 55 hand-written function declarations. From AmazonScience/massive-agents at revision b6156972182bdf34e68c5b5dfbfe6d30db82f104, files massive-full-converted-all-langs-with-id/af-ZA/input.jsonl, massive-full-converted-all-langs-with-id/af-ZA/golden.jsonl, massive-full-converted-all-langs-with-id/am-ET/input.jsonl and 101 more. 47020 rows here, of which 46053 also appear in pool.jsonl. Provenance class human, licence cc-by-4.0. Its own fields are question, function as the 55 declarations offered with every request, gt as the answer key, id, language and test_category in every input.jsonl, and the same answer key on its own in every golden.jsonl, one line per request.

Rewritten. In pool.jsonl, the request is question, the declarations are function, and the call is gt read as one name with the first acceptable value of each argument, dropping any argument whose first acceptable value is the empty string.

Worth knowing. Every answer key is a single call, so this source teaches one call at a time and never several at once. The 55 declarations are repeated in full on every row, which is most of its size on disk. Its answer key gives a list of acceptable values per argument rather than one value, and an empty string in that list means the argument may be left out, which the rewritten layer resolves by taking the first value.

sources/apigen

Requests and calls written by large language models over real API documentation and over synthesised Python functions, then filtered by a format check, by really executing the call and by a semantic check. The half marked xLAM was written by DeepSeek-V2-Chat and Mixtral-8x22B-Instruct over documentation collected from a public API marketplace, and the other half by Qwen2.5-72B-Instruct and Llama-3.1-70B-Instruct over invented functions. From argilla/apigen-function-calling at revision 170a8a7e0832101f2495a00c9ad9ba1821d3a9b0, files data/train-00000-of-00001.parquet. 108715 rows here, of which 105336 also appear in pool.jsonl. Provenance class model-generated, licence cc-by-4.0. Its own fields are query, tools, answers, id, func_name, func_desc, hash_id, model_name, origin.

Rewritten. In pool.jsonl, the request is query, the declarations are tools parsed out of its JSON string, and the calls are answers parsed the same way, each already a name with an arguments object. An answers column holding a sentence rather than a call list is read as no call, and the sentence becomes the response.

Worth knowing. Tools and answers are JSON held inside strings rather than structured columns, and the declarations use a compact argument shape with a description, a type name and a default rather than a JSON schema. Roughly half the rows ask for more than one call, which is the only large source in the pool that does. 6000 of its rows answer in a sentence rather than with a call, saying that the request cannot be answered with what was offered or that an argument is missing, and 2068 of those offer no declaration at all and are left out of the rewritten layer. The published human check of the pipeline covered 600 of the 60000 rows it contributed.

sources/toolace

Dialogues written by two language-model agents, one playing a user and one playing an assistant, over a catalogue of 26507 interfaces that is partly collected and partly synthesised, checked afterwards by rule-based and model-based verifiers. From Team-ACE/ToolACE at revision 6bda777c88d21e5a204703c1ee45597a8fa4f734, files data.json. 11264 rows here, of which 10463 also appear in pool.jsonl. Provenance class model-generated, licence apache-2.0. Its own fields are system, holding the instruction and the declarations as a JSON list, and conversations, a list of turns each with from and value.

Rewritten. In pool.jsonl, the declarations are the JSON list at the end of system, the request is the first user turn, and the calls are the first assistant turn parsed as a bracketed list of call expressions, with a turn that is prose rather than a call read as no call.

Worth knowing. The paper never names the model that wrote it, so its terms could not be checked beyond the apache-2.0 tag on the repository. Its calls are written as a Python-like call string rather than as JSON, and its function names contain spaces, which the rewritten layer parses. 10500 of its 11300 rows are a single exchange and the rest run on for several turns, of which the rewritten layer keeps the first exchange only. 518 of its rows write their declarations in a second system format under a different marker and with different field names, and 248 more offer no declaration at all, and both are left out of the rewritten layer and kept here.

sources/when2call

Requests rewritten by Mixtral 8x22B from an existing model-written function-calling set, paired with the answer a careful assistant should give when the offered functions do not cover the request or when an argument is missing. From nvidia/When2Call at revision 0582f7749df63a96fdc3070932e83e72396ace53, files train/when2call_train_sft.jsonl, train/when2call_train_pref.jsonl. 23953 rows here, of which 15001 also appear in pool.jsonl. Provenance class model-generated, licence cc-by-4.0. Its own fields are tools as a list of JSON strings and messages as a user turn and an assistant turn in the supervised split, and tools, a user turn, a chosen_response and a rejected_response in the preference split.

Rewritten. In pool.jsonl, the request is the user turn, the declarations are tools with each JSON string parsed, and the answer is the assistant turn in the supervised split and chosen_response in the preference split, read as calls when it carries a TOOLCALL block and as no call otherwise.

Worth knowing. The whole supervised split answers in prose rather than with a call, on purpose, and two thirds of the preference split does the same, so this source teaches restraint and clarification and teaches almost no call syntax. Its two test splits are not in the pool.

sources/glaive

Assistant dialogues produced by a commercial synthetic-data platform, each with a system message offering one or two functions and a conversation that either calls one of them or explains that it cannot help. From glaiveai/glaive-function-calling-v2 at revision e7f4b6456019f5d8bcb991ef0dd67d8ff23221ac, files glaive-function-calling-v2.json. 112479 rows here, of which 22333 also appear in pool.jsonl. Provenance class model-generated, licence apache-2.0. Its own fields are system, the instruction with the declarations appended, and chat, the dialogue as one block of text.

Rewritten. In pool.jsonl, the declarations are the JSON objects appended to system, the request is the first USER block of chat, and the calls are the ASSISTANT block that follows it, read as a call when it opens with a functioncall marker and as no call otherwise.

Worth knowing. Its card carries no prose at all and the model that wrote it is not named anywhere, so the apache-2.0 tag is the only statement of terms there is. 34598 of its rows offer no function at all and are left out of the rewritten layer for that reason. Its calls are written as JSON whose arguments field is itself a JSON string in single quotes, which the rewritten layer parses.

Provenance and licences

One source was written by people and four were written by models, and every row says which in its provenance_class field. The MASSIVE conversion is the human one: crowdworkers wrote the requests, professional translators localised them, annotators labelled the intent and the slots, and the authors hand-wrote the 55 declarations, so its answer keys are human throughout. The other four are model-generated, and they differ in how real the interfaces behind them are: the APIGen merge and When2Call are built over documentation collected from a real API marketplace, ToolACE over a catalogue that is partly collected and partly synthesised, and Glaive over functions it invented. There is no rule-generated data in the pool.

Say plainly what that means for the keys. On the four model-written sources the gold call was itself written by a language model, so it is only as correct as that model was on the day the set was built. The APIGen rows are the best of them, because that pipeline filtered its rows by really executing the call. The MASSIVE keys are the only ones in the pool that a person wrote.

The pool as a whole is offered under cc-by-4.0, which is the most restrictive term its sources compose to. The sources themselves are cc-by-4.0 for the MASSIVE conversion, for the APIGen merge and for When2Call, and apache-2.0 for ToolACE and for Glaive. Nothing in the pool is non-commercial and nothing in it is share-alike. Each rewritten row carries its own licence in the licence field and each directory under sources/ is one source, so a single-licence subset can be selected. Attribution goes to Amazon Science for the MASSIVE conversion and through it to the authors of MASSIVE and SLURP, to Argilla and Salesforce for the APIGen merge, to the ToolACE authors, to NVIDIA for When2Call and to Glaive AI.

Filtering

Near-duplicate rows were removed before publication, from both layers alike, measured against a reserved list of requests that is not distributed here: a word 8-gram overlap check on the request text removed 1251 rows and an exact-match check on the whole normalised request removed 0 more. Nothing else was filtered: no language, no domain, no source's weaker half and no difficulty was selected for or against, so the pool still holds the rows that answer in prose rather than with a call, and the gold field is how to select what you want.